modified: README.md

modified: netbox_dns_bridge/__init__.py
Bump version to 1.5.2
2026-04-09 19:10:39 +02:00 · 2026-04-09 18:51:54 +02:00 · 2026-04-09 18:36:14 +02:00 · 2026-04-09 18:28:05 +02:00 · 2026-04-09 17:27:00 +02:00 · 2026-04-09 15:04:39 +02:00
24 changed files with 1578 additions and 1223 deletions
@@ -6,7 +6,7 @@
 # separate terms of service, privacy policy, and support
 # documentation.
-name: Upload Python Package
+name: Create and Upload Python Package
 on:
  release:
@@ -16,9 +16,12 @@ permissions:
  contents: read
 jobs:
-  release-build:
+  build-and-publish:
    name: Build and Publish
    environment: pypi
    permissions:
      id-token: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
@@ -26,45 +29,14 @@ jobs:
        with:
          python-version: "3.x"
-      - name: Build release distributions
+      - name: Install build tools
        run: |
-          # NOTE: put your own distribution build steps here.
+          python -m pip install --upgrade pip
          python -m pip install build
          python -m build
-      - name: Upload distributions
+      - name: Build release
-        uses: actions/upload-artifact@v4
+        run: |
-        with:
+          python -m build --sdist --wheel
          name: release-dists
          path: dist/
-  pypi-publish:
+      - name: Publish package distributions to PyPI
    runs-on: ubuntu-latest
    needs:
      - release-build
    permissions:
      # IMPORTANT: this permission is mandatory for trusted publishing
      id-token: write
    # Dedicated environments with protections for publishing are strongly recommended.
    # For more information, see: https://docs.github.com/en/actions/deployment/targeting-different-environments/using-environments-for-deployment#deployment-protection-rules
    environment:
      name: pypi
      # OPTIONAL: uncomment and update to include your PyPI project URL in the deployment status:
      # url: https://pypi.org/p/YOURPROJECT
      #
      # ALTERNATIVE: if your GitHub Release name is the PyPI project version string
      # ALTERNATIVE: exactly, uncomment the following line instead:
      # url: https://pypi.org/project/YOURPROJECT/${{ github.event.release.name }}
    steps:
      - name: Retrieve release distributions
        uses: actions/download-artifact@v4
        with:
          name: release-dists
          path: dist/
      - name: Publish release distributions to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          packages-dir: dist/
@@ -1,2 +1,4 @@
-src/netbox_plugin_bind_provisioner.egg-info
+netbox_dns_bridge.egg-info
 dist/
 build/
 __pycache__
@@ -0,0 +1,12 @@
 ## 1.0.7 - 2026-03-02
 README Change - Moving private keys to global scope since Bind 9.20 view scoped keys have become unreliable and sometimes wouldnt match.
 ## 1.0.8 - 2026-03-12
 - Change License to MIT to match the netbox-plugin-dns License. This project rests on the netbox-plugin-dns so a matching
  license makes more sense.
 - Renaming Project from Netbox Plugin Bind Provisioner to Netbox DNS Bridge as new code will be contributed that allows
  data to flow in both directions (Dynamic Updates), not just out of Netbox DNS.
 ## 1.5.0 - 2026-04-08
 - Change to versioning scheme - Now matches the major and minor version number to the one of netbox-plugin-dns. Only the minor sub version
  will be used to track incremental changes to this plugin.
@@ -1,339 +1,18 @@
-                    GNU GENERAL PUBLIC LICENSE
+MIT License
                       Version 2, June 1991
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+Copyright (c) 2025-2026 Sven Luethi
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
-                            Preamble
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 associated documentation files (the “Software”), to deal in the Software without restriction,
 including without limitation the rights to use, copy, modify, merge, publish, distribute,
 sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
-  The licenses for most software are designed to take away your
+The above copyright notice and this permission notice shall be included in all copies or substantial
-freedom to share and change it.  By contrast, the GNU General Public
+portions of the Software.
 License is intended to guarantee your freedom to share and change free
 software--to make sure the software is free for all its users.  This
 General Public License applies to most of the Free Software
 Foundation's software and to any other program whose authors commit to
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-  When we speak of free software, we are referring to freedom, not
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
-price.  Our General Public Licenses are designed to make sure that you
+NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-have the freedom to distribute copies of free software (and charge for
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+OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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@@ -1,124 +1,262 @@
-# Netbox Bind Provisioner
+# Netbox DNS Bridge
-A Netbox Plugin that provides a minimal DNS Server for the automatic
+(Formerly Netbox Bind Provisioner)
-provisioning of a Bind9 Server from Netbox DNS data (netbox-plugin-dns).
+
 The NetBox DNS Bridge plugin extends [NetBox DNS](https://github.com/sys4/netbox-plugin-dns) by
 embedding a lightweight DNS server directly within NetBox. It acts as a bridge between NetBox DNS
 and your existing DNS infrastructure, leveraging native DNS mechanisms for seamless integration.
 These include zone transfers (RFC 5936), catalog zones (RFC 9432), and dynamic updates (RFC 2136).
 <a href="https://pypi.org/project/netbox-plugin-dns-bridge/"><img src="https://img.shields.io/pypi/v/netbox-plugin-dns-bridge" alt="PyPi"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/stargazers"><img src="https://img.shields.io/github/stars/suraxius/netbox-plugin-bind-provisioner?style=flat" alt="Stars Badge"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/network/members"><img src="https://img.shields.io/github/forks/suraxius/netbox-plugin-bind-provisioner?style=flat" alt="Forks Badge"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/issues"><img src="https://img.shields.io/github/issues/suraxius/netbox-plugin-bind-provisioner" alt="Issues Badge"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/pulls"><img src="https://img.shields.io/github/issues-pr/suraxius/netbox-plugin-bind-provisioner" alt="Pull Requests Badge"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/graphs/contributors"><img src="https://img.shields.io/github/contributors/suraxius/netbox-plugin-bind-provisioner?color=2b9348" alt="GitHub contributors"></a>
 <a href="https://github.com/suraxius/netbox-plugin-bind-provisioner/blob/master/LICENSE"><img src="https://img.shields.io/github/license/suraxius/netbox-plugin-bind-provisioner?color=2b9348" alt="License Badge"></a>
 <a href="https://github.com/psf/black"><img src="https://img.shields.io/badge/code%20style-black-000000.svg" alt="Code Style Black"></a>
 <a href="https://pepy.tech/project/netbox-plugin-dns-bridge"><img src="https://static.pepy.tech/personalized-badge/netbox-plugin-dns-bridge?period=total&left_color=BLACK&right_color=BLUE&left_text=Downloads" alt="Downloads"></a>
 <a href="https://pepy.tech/project/netbox-plugin-dns-bridge"><img src="https://static.pepy.tech/personalized-badge/netbox-plugin-dns-bridge?period=monthly&left_color=BLACK&right_color=BLUE&left_text=Downloads%2fMonth" alt="Downloads/Week"></a>
 <a href="https://pepy.tech/project/netbox-plugin-dns-bridge"><img src="https://static.pepy.tech/personalized-badge/netbox-plugin-dns-bridge?period=weekly&left_color=BLACK&right_color=BLUE&left_text=Downloads%2fWeek" alt="Downloads/Month"></a>
 ![Architecture Overview](docs/architecture-overview.svg)
 DISCLAIMER: The dynamic update endpoint isn't here yet. Its planned - without a deadline.
 ## Plugin configuration
-The plugin was re-worked; Instead of exporting zone files, it provides an
+While providing Zone transfers via AXFR, the Server also exposes specialized catalog zones that BIND
-entire (though minimal) DNS Server that is fed directly from Netbox's DNS data.
+and other RFC9432 compliant DNS Servers use to automatically discover newly created zones and remove
-The Server also provides specialized "catalog" zones that bind uses to
+deleted ones. The plugin supports views and basic DNS security via TSIG.
 automatically discover new zones and remove deleted ones. The plugin supports
 view as well as basic dns security using TSIG.
-To work correctly, each view needs a tsig key installed and the
+The plugin exposes one catalog zone per view. Each catalog zone is made available under the special
-bind-transfer-endpoint needs to be running as its own service in the background
+zone name **"catz"** and addtionally under **"[viewname].catz"** and may be queried through the
-via the `manage.py` command. Note that dnssec support will be implemented as
+built-in DNS server just like any other dns zone.
 soon as bind9 has a mechanism to allow configuration of such via the Catalog
 Zones mechanism.
 ```
 venv/bin/python3 netbox/netbox/manage.py bind-transfer-endpoint --port 5354
 ```
-### Parameters
+For proper operation, each view requires an installed TSIG key, and the `dns-transfer-endpoint` must
 be running as a separate background service using the `manage.py` command. Note that DNSSEC support
 will be added once BIND9 provides a mechanism to configure it through the Catalog Zones system.
 To start the transfer endpoint service in the foreground:
 ```
 manage.py dns-transfer-endpoint --port 5354
 ```
 This process needs to be scheduled as a background service for the built-in DNS Server to work
 correctly. For Linux users with Systemd (Ubuntu, etc), Matt Kollross provides a startup unit and
 instructions [here](docs/install-systemd-service.md).
 ### Service parameters
 Parameter | Description
--------- | --------------------------------------------------------
+--------- | -------------------------------------------------------------------
 --port    | Port to listen on for requests (defaults to 5354)
 --address | IP of interface to bind to (defaults to 0.0.0.0)
-```
+### Plugin settings
-PLUGINS_CONFIG = {
+Setting             | Description
-    "netbox_bind_provisioner": {
+--------------------| ---------------------------------------------------------
-        "tsig_keys": {
+tsig_keys           | Maps a TSIG Key to be used for each view.
-            "key1name": {
+
-                "view":      "public",
+## Plugin compatibility
-                "keyname":   "view1key",
+This plugin is an extension to the netbox-plugin-dns plugin. As such the versioning of this plugin
-                "algorithm": "hmac-sha256",
+was changed to match the one of the netbox-plugin-dns plugin closely. To guarantee compatability,
-                "secret":    "base64-encoded-secret"
+ensure that the major and minor version match between both plugins.
-            },
+For example, when using netbox-plugin-dns `v1.5.5` install netbox-plugin-dns-bridge `v1.5.x`.
-            "key2name": {
+
-                "view":      "private",
+## Post 1.0.7 Upgrade Guide
-                "keyname":   "view2key",
+Applies only if you have a <= 1.0.7 installation. If you are freshly installing this plugin,
-                "algorithm": "hmac-sha256",
+go on to [Installation Guide](#installation-guide).
-                "secret":    "base64-encoded-secret"
+
 After version 1.0.7, the project was restructured and renamed. Until that point version updates
 happened more or less automatically. However, this shift is more of a move from one plugin to
 another as the package name has changed.
 This should not be an issue since the slave DNS Servers connected to Netbox can operate
 independently while this plugin is being upgraded.
 Make sure to note down the catalog zone serial number before going further.
 1. Remove Netbox Bind Provisioner package
    - Remove `netbox-plugin-bind-provisioner` from **local_dependencies.txt**
    - Uninstall the package: `pip uninstall netbox-plugin-bind-provisioner`
 2. Install Netbox DNS Bridge package
    - Install the package `pip install netbox-plugin-dns-bridge`
    - Put `netbox-plugin-dns-bridge` in your **local_dependencies.txt** so it will be installed on
      next upgrade.
 3. Adjust your `configuration.py`
    - Change the plugin name from `netbox-plugin-bind-provisioner` to `netbox-plugin-dns-bridge`
    - Change the key in `PLUGIN_CONFIG` from `netbox_plugin_bind_provisioner` to `netbox_dns_bridge`
 4. Run migrations: `manage.py migrate`
 5. Restore the catalog zone serial you noted down previously so that your slave dns servers continue
   to pull the changes: `manage.py dns-settings set catalog-zone-soa-serial yourserialnumber`
 6. Start the `dns-transfer-endpoint` service.
 7. Mission accomplished.
 ## Installation guide
 This setup provisions a BIND9 server directly with DNS data from NetBox. BIND9 can optionally run on
 a separate server. If so, any reference to 127.0.0.1 in step 6 must be replaced with the IP address
 of the NetBox host. TCP and UDP traffic from the BIND9 server to the NetBox host must be allowed on
 port 5354 (or the port you have configured).
 This guide assumes:
 - Netbox has been installed under /opt/netbox
 - Bind9 is installed on the same host as Netbox
 - The Netbox DNS Plugin netbox-plugin-dns is installed
 - The following dns views exist in Netbox DNS:
    - `public` (the default)
    - `private`
 1. Preliminaries
    - Install Bind9 on the same host that netbox is on.
    - Generate a TSIG Key for the `public` and `private` dns views respectively.
 2. Adding required package
    ```
    cd netbox
    echo netbox-plugin-dns-bridge >> local_requirements.txt
    . venv/bin/activate
    pip install -r local_requirements.txt
    ```
 3. Updating netbox plugin configuration (configuration.py)
    Change following line from
    ```
    PLUGINS = ['netbox_dns']
    ```
    to
    ```
    PLUGINS = ['netbox_dns', 'netbox_dns_bridge']
    ```
    Configure the DNS Bridge Plugin using the PLUGINS_CONFIG dictionary.
    Change
    ```
    PLUGINS_CONFIG = {}
    ```
    to
    ```
    PLUGINS_CONFIG = {
        "netbox_dns_bridge": {
            "tsig_keys": {
                "public": {
                    "keyname":   "public_view_key",
                    "algorithm": "hmac-sha256",
                    "secret":    "base64-encoded-secret"
                },
                "private": {
                    "keyname":   "private_view_key",
                    "algorithm": "hmac-sha256",
                    "secret":    "base64-encoded-secret"
                }
            }
-        },
+        }
    }
-}
+    ```
-```
+    Note that the tsig-key attributes keyname, algorithm and secret form a
    dictionary in following python structure path:
    ```
    PLUGINS_CONFIG.netbox_dns_bridge.tsig_keys.<dns_view_name>
    ```
    This allows the plugin to map requests to the right dns view using the tsig
    signature from each request.
-## Bind configuration
+4. Run migrations
-```
+    ```
-options {
+    manage.py migrate
-    ...
+    ```
    ...
    allow-update      { none; };
    allow-query       { any; };
    allow-recursion   { none; };
    notify            yes;
    ...
    ...
 };
-# ACLs
+5. Start listener
-acl public {
+    This step runs the DNS endpoint used by bind to configure itself. You may want to write a
-    !10.0.0.0/8;
+    service wrapper that runs this in the background. A guide for setting up a systemd service on
-    !172.16.0.0/12;
+    Ubuntu is provided by Matt Kollross [here](docs/install-systemd-service.md). Dont forget to
-    !192.168.0.0/16;
+    activate the venv if you do decide to run this service in the background.
    any;
 };
-acl private {
+    Note that `--port 5354` is optional. The listener will bind this port by default.
-    10.0.0.0/8;
+    ```
-    172.16.0.0/12;
+    manage.py dns-transfer-endpoint --port 5354
-    192.168.0.0/16;
+    ```
 };
-# Zone definitions
+6. Configuring a Bind9 to interact with Netbox via the dns-transfer-endpoint endpoint. Note that its
    not possible to give all the correct details of the `options` block as it is heavily dependent
    on the Operating System used. Please dont forget to adjust as required.
    ```
    ########## OPTIONS ##########
-view "public" {
+    options {
-    key "key1name" {
+        allow-update      { none; };
-        algorithm hmac-sha256;
+        allow-query       { any; };
-        secret "base64-encoded-secret";
+        allow-recursion   { none; };
        notify            yes;
        min-refresh-time  60;
    };
-    match-clients { public; };
+    ########## ACLs ##########
-    catalog-zones {
+    acl public {
-        zone "catz"
+        !10.0.0.0/8;
-            default-masters { 127.0.0.1 port 5354 key "key1name"; }
+        !172.16.0.0/12;
-            zone-directory "/var/lib/bind/zones"
+        !192.168.0.0/16;
-            min-update-interval 1;
+        any;
    };
-    zone "catz" {
+    acl private {
-        type slave;
+        10.0.0.0/8;
-        file "/var/lib/bind/zones/catz_public";
+        172.16.0.0/12;
-        masters { 127.0.0.1 port 5354 key "key1name"; };
+        192.168.0.0/16;
        notify no;
    };
 };
 view "private" {
    key "key2name" {
        algorithm hmac-sha256;
        secret "base64-encoded-secret";
    };
-    match-clients { private; };
+    ######## TSIG Keys ########
        key "public_view_key" {
            algorithm hmac-sha256;
            secret "base64-encoded-secret";
        };
-    catalog-zones {
+        key "private_view_key" {
-        zone "catz"
+            algorithm hmac-sha256;
-            default-masters { 127.0.0.1 port 5354 key "key2name"; }
+            secret "base64-encoded-secret";
-            zone-directory "/var/lib/bind/zones"
+        };
-            min-update-interval 1;
+    ###########################
    ########## ZONES ##########
    view "public" {
        match-clients { public; };
        catalog-zones {
            zone "catz"
                default-masters { 127.0.0.1 port 5354 key "public_view_key"; }
                zone-directory "/var/lib/bind/zones"
                min-update-interval 1;
        };
        zone "catz" {
            type slave;
            file "/var/lib/bind/zones/catz_public";
            masters { 127.0.0.1 port 5354 key "public_view_key"; };
            notify no;
        };
    };
-    zone "catz" {
+    view "private" {
-        type slave;
+        match-clients { private; };
-        file "/var/lib/bind/zones/catz_private";
+
-        masters { 127.0.0.1 port 5354 key "key2name"; };
+        catalog-zones {
-        notify no;
+            zone "catz"
                default-masters { 127.0.0.1 port 5354 key "private_view_key"; }
                zone-directory "/var/lib/bind/zones"
                min-update-interval 1;
        };
        zone "catz" {
            type slave;
            file "/var/lib/bind/zones/catz_private";
            masters { 127.0.0.1 port 5354 key "private_view_key"; };
            notify no;
        };
    };
-};
+    ```
-```
+
 7. Restart bind - Done
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@@ -0,0 +1,34 @@
 1. Create System Unit file
    ```
    cat <<EOF > /etc/systemd/system/netbox-bind-endpoint.service
    [Unit]
    Description=Netbox BIND Catalog Endpoing
    Documentation=https://github.com/Suraxius/netbox-plugin-bind-provisioner
    After=network-online.target
    Wants=network-online.target
    [Service]
    Type=simple
    User=netbox
    Group=netbox
    PIDFile=/var/tmp/netbox.pid
    WorkingDirectory=/opt/netbox
    ExecStart=/opt/netbox/venv/bin/python3  /opt/netbox/netbox/manage.py dns-transfer-endpoint --port 5354
    Restart=on-failure
    RestartSec=30
    PrivateTmp=true
    [Install]
    WantedBy=multi-user.target
    EOF
    ```
 2. Enable and start the service
    ```
    systemctl enable netbox-bind-endpoint
    systemctl start netbox-bind-endpoint
    systemctl status netbox-bind-endpoint
    ```
@@ -0,0 +1,36 @@
 import logging
 from netbox.plugins import PluginConfig
 from django.conf import settings
 __version__ = "1.5.2"
 logger = logging.getLogger(__name__)
 logging.basicConfig(
    level=logging.DEBUG,  # Log level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",  # Log format
    datefmt="%Y-%m-%d %H:%M:%S",  # Date format for timestamps
 )
 class DNSBridgeConfig(PluginConfig):
    name = "netbox_dns_bridge"
    verbose_name = "Netbox DNS Bridge"
    description = ""
    version = __version__
    author = "Sven Luethi"
    author_email = "dev@sven.luethi.co"
    base_url = "dns-bridge"
    def ready(self):
        self.settings = settings.PLUGINS_CONFIG.get(self.name, None)
        if not self.settings:
            raise RuntimeError(
                f"{self.name}: Plugin {self.verbose_name} failed to initialize due to missing settings. Terminating Netbox."
            )
        from . import signals as signals
 config = DNSBridgeConfig
 default_app_config = ".apps.NetboxDNSBridgeConfig"
@@ -0,0 +1,232 @@
 import logging
 import threading
 import dns.query
 import dns.message
 import dns.tsigkeyring
 import dns.name
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.rdtypes
 import dns.exception
 import dns.renderer
 from netbox_dns.models import Zone
 from netbox_dns.choices import ZoneStatusChoices
 from netbox_dns_bridge.models import IntegerKeyValueSetting, CatalogZoneMemberIdentifier
 from uuid import uuid4
 from base64 import b32encode
 logger = logging.getLogger(__name__)
 _LOCK = threading.Lock()
 _SERIAL_MAX = 0xFFFFFFFF
 _SERIAL_OBJ = None
 _PREVIOUS_LAST_ZONE_UPDATE = None
 def init() -> None:
    _init_serial()
    _create_missing_member_identifiers()
 # Following function loads the last serial from the DB. No return value
 # but it sets the setting "catalog_serial" or terminates the plugin on failure.
 def _init_serial() -> None:
    global _SERIAL_OBJ
    try:
        _SERIAL_OBJ = IntegerKeyValueSetting.objects.get(key="catalog-zone-soa-serial")
        logger.debug(
            f"Catalog zone SOA serial number {_SERIAL_OBJ.value} loaded from database"
        )
    except IntegerKeyValueSetting.DoesNotExist:
        _SERIAL_OBJ = IntegerKeyValueSetting.objects.create(
            key="catalog-zone-soa-serial", value=1
        )
        logger.debug(
            f"Catalog zone SOA serial number was not set in the database. Set to {_SERIAL_OBJ.value}"
        )
 def _set_serial(new_serial: int) -> bool:
    global _SERIAL_OBJ
    if 0 < new_serial < _SERIAL_MAX:
        _SERIAL_OBJ.value = new_serial
        _SERIAL_OBJ.save()
        return True
    else:
        return False
 def _increment_serial() -> None:
    if not _set_serial(_SERIAL_OBJ.value + 1):
        logger.warning(
            f"Catalog serial {_SERIAL_OBJ.value} reached max — wrapping back to 1"
        )
        _set_serial(1)
    logger.debug(f"Catalog zone SOA serial number is now {_SERIAL_OBJ.value}")
 # If a zone has no catz identifier yet, create it:
 def _create_missing_member_identifiers() -> None:
    existing_zone_ids = CatalogZoneMemberIdentifier.objects.values_list(
        "zone_id", flat=True
    )
    missing_zones = Zone.objects.exclude(id__in=existing_zone_ids)
    new_objects = [
        CatalogZoneMemberIdentifier(
            zone=zone,
            name=_generate_member_identifier(),
        )
        for zone in missing_zones
    ]
    for identifier in new_objects:
        logger.debug(
            f"Zone {identifier.zone} has no catz member identifier. Creating..."
        )
    CatalogZoneMemberIdentifier.objects.bulk_create(
        new_objects,
        ignore_conflicts=False,
    )
 def create_zone(name, view_name) -> dns.zone.Zone:
    global _PREVIOUS_LAST_ZONE_UPDATE
    # Synchronize following across threads as TCP and UDP listener both use it.
    with _LOCK:
        latest_zone = (
            Zone.objects.filter(status=ZoneStatusChoices.STATUS_ACTIVE)
            .order_by("-last_updated")
            .first()
        )
        last_zone_update = getattr(latest_zone, "last_updated", None)
        # Check if there was a zone updated since last call
        # If no zone was found previously then this will be false since (None != None) = False
        if _PREVIOUS_LAST_ZONE_UPDATE != last_zone_update:
            if last_zone_update is not None:
                logger.debug(
                    f"Zone {latest_zone.name} was updated in view {latest_zone.view.name}"
                )
            # Setting previous last zone update for next iteration:
            _PREVIOUS_LAST_ZONE_UPDATE = last_zone_update
            _increment_serial()
    # Zone origin
    origin = dns.name.from_text(name, dns.name.root)
    # Create a new empty zone
    zone = dns.zone.Zone(origin)
    zone.rdclass = dns.rdataclass.IN
    # get zones from netbox
    nb_zones = Zone.objects.filter(
        view__name=view_name, status=ZoneStatusChoices.STATUS_ACTIVE
    ).select_related("catz_identifier")
    ptr_base = dns.name.from_text("zones", origin)
    for nb_zone in nb_zones:
        ttl = 0
        qname = dns.name.from_text(nb_zone.name, dns.name.root)
        # Create PTR record
        # p_name = f"zid-{nb_zone.id:09d}"
        p_name = nb_zone.catz_identifier.name
        ptr_name = dns.name.from_text(p_name, ptr_base)
        if not ptr_name.is_subdomain(origin):
            raise ValueError(
                "Catalog zone member identifier {ptr_name.to_text()} not a subdomain"
            )
        rdata = dns.rdata.from_text(
            dns.rdataclass.IN, dns.rdatatype.PTR, qname.to_text()
        )
        rdataset = zone.find_rdataset(ptr_name, dns.rdatatype.PTR, create=True)
        rdataset.add(rdata, ttl)
        # Configure DNSSec Policy for member Zone if DNSSec is enabled
        if nb_zone.dnssec_policy:
            # Configure policy
            rid = dns.name.from_text("group", ptr_name)
            policy_name = nb_zone.dnssec_policy.name.rstrip(" ")
            group_name = f"dnssec-policy-{policy_name}"
            rdata = dns.rdata.from_text(
                dns.rdataclass.IN, dns.rdatatype.TXT, group_name
            )
            rdataset = zone.find_rdataset(rid, dns.rdatatype.TXT, create=True)
            rdataset.add(rdata, ttl)
        ## Configure dnssec status for member zone
        # status = str(1 if nb_zone.dnssec_policy else 0)
        # rid = dns.name.from_text("enabled.dnssec.ext", ptr_name)
        # rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.TXT, status)
        # rdataset = zone.find_rdataset(rid, dns.rdatatype.TXT, create=True)
        # rdataset.add(rdata, ttl)
    # SOA Record components
    ttl = 0
    rclass = dns.rdataclass.IN
    rtype = dns.rdatatype.SOA
    mname = dns.name.from_text("invalid", dns.name.root)
    rname = dns.name.from_text("invalid", dns.name.root)
    serial = _SERIAL_OBJ.value
    refresh = 60
    retry = 10
    expire = 1209600
    minimum = 0
    # Create SOA rdata object
    soa_rdata = dns.rdata.from_text(
        rclass,
        rtype,
        f"{mname} {rname} {serial} {refresh} {retry} {expire} {minimum}",
    )
    # Create Rdataset and add the RDATA to it
    soa_rdataset = dns.rdataset.Rdataset(rclass, rtype)
    soa_rdataset.add(soa_rdata, ttl)
    # Add to the origin node in the zone
    node = zone.find_node(origin, create=True)
    node.rdatasets.append(soa_rdataset)
    # NS record for catz.
    ns_name = dns.name.from_text("invalid", dns.name.root)
    ns_rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.NS, str(ns_name))
    ns_rdataset = dns.rdataset.Rdataset(dns.rdataclass.IN, dns.rdatatype.NS)
    ns_rdataset.add(ns_rdata, 0)
    # Add to node (catz. is the origin)
    ns_node = zone.find_node(origin, create=True)
    ns_node.rdatasets.append(ns_rdataset)
    # TXT record for version.catz.
    version_name = dns.name.from_text("version", origin)  # relative to origin "catz."
    txt_rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.TXT, '"2"')
    txt_rdataset = dns.rdataset.Rdataset(dns.rdataclass.IN, dns.rdatatype.TXT)
    txt_rdataset.add(txt_rdata, 0)
    # Add to node version.catz.
    txt_node = zone.find_node(version_name, create=True)
    txt_node.rdatasets.append(txt_rdataset)
    return zone
 def _generate_member_identifier() -> None:
    return b32encode(uuid4().bytes)[0:26].lower().decode("UTF-8")
 def update_member_identifier(zone: Zone) -> None:
    CatalogZoneMemberIdentifier.objects.update_or_create(
        zone=zone,
        defaults={"name": _generate_member_identifier()},
    )
@@ -0,0 +1,46 @@
 import logging
 import socketserver
 import socket
 logger = logging.getLogger(__name__)
 class DNSAddressMixin:
    def _resolve_address(self, server_address, socktype, proto):
        host, port = server_address
        infos = socket.getaddrinfo(
            host, port, socket.AF_UNSPEC, socktype, proto, socket.AI_PASSIVE
        )
        family, _, _, _, sockaddr = infos[0]
        self.address_family = family
        return sockaddr
 class TCPDNSServer(DNSAddressMixin, socketserver.TCPServer):
    allow_reuse_address = True
    def __init__(self, server_address, handler_class, keyring, tsig_view_map):
        sockaddr = self._resolve_address(
            server_address, socket.SOCK_STREAM, socket.IPPROTO_TCP
        )
        super().__init__(sockaddr, handler_class)
        self.keyring = keyring
        self.tsig_view_map = tsig_view_map
 class UDPDNSServer(DNSAddressMixin, socketserver.UDPServer):
    allow_reuse_address = True
    def __init__(self, server_address, handler_class, keyring, tsig_view_map):
        sockaddr = self._resolve_address(
            server_address, socket.SOCK_DGRAM, socket.IPPROTO_UDP
        )
        super().__init__(sockaddr, handler_class)
        self.keyring = keyring
        self.tsig_view_map = tsig_view_map
@@ -0,0 +1,60 @@
 import os
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.exception
 import netbox_dns.models
 from netbox_dns_bridge.utils import export_bind_zone_file
 from django.core.management.base import BaseCommand, CommandError
 class Command(BaseCommand):
    def add_arguments(self, parser):
        parser.add_argument(
            "--view",
            type=str,
            help="The name of the view the Zone to be exported is in",
        )
        parser.add_argument(
            "--zone", type=str, help="The FQDN of the Zone to be exported"
        )
        parser.add_argument(
            "--file", type=str, help="Path of the zone file to be written"
        )
    def handle(self, *args, **options):
        # if len(options) < 2:
        #    print("export-zone <zone name> <file path>")
        #    sys.exit(1)
        # Load parameters
        view_name = options["view"]
        zone_name = options["zone"]
        file_path = options["file"]
        if not view_name:
            raise CommandError("No --view parameter given")
        elif not zone_name:
            raise CommandError("No --zone parameter given")
        elif not file_path:
            raise CommandError("No --file parameter given")
        try:
            # Load the zone from NetBox DNS
            nb_zone = netbox_dns.models.Zone.objects.get(
                view__name=view_name, name=zone_name
            )
            if nb_zone:
                export_bind_zone_file(nb_zone, file_path=file_path)
            else:
                print("Zone not found in Netbox. Aborting")
                sys.exit(1)
        except Exception as e:
            raise CommandError(f"Failed to export zone: {e}")
        self.stdout.write(
            self.style.SUCCESS(f"Zone '{zone_name}' exported to '{file_path}'")
        )
@@ -0,0 +1,52 @@
 import os
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.exception
 import netbox_dns.models
 from netbox_dns_bridge.utils import export_bind_zone_file
 from django.core.management.base import BaseCommand, CommandError
 class Command(BaseCommand):
    def add_arguments(self, parser):
        parser.add_argument(
            "--path",
            type=str,
            help="Path to the directory where zone files are to be written",
        )
    def handle(self, *args, **options):
        # Load parameters
        base_path = options["path"]
        if not base_path:
            raise CommandError("No --path parameter given")
        # Ensure base_path exists
        os.makedirs(base_path, exist_ok=True)
        # Iterate through all zones
        nb_zones = netbox_dns.models.Zone.objects.prefetch_related("view").all()
        if not nb_zones.exists():
            self.stdout.write(self.style.WARNING("No zones found in NetBox DNS."))
            return
        for zone in nb_zones:
            # Determine view directory
            view_name = zone.view.name
            view_dir = os.path.join(base_path, view_name)
            os.makedirs(view_dir, exist_ok=True)
            # Zone file path
            file_path = os.path.join(view_dir, zone.name)
            try:
                # Call existing export function
                export_bind_zone_file(zone, file_path=file_path)
                self.stdout.write(
                    self.style.SUCCESS(f"Exported zone '{zone.name}' to '{file_path}'")
                )
            except Exception as e:
                self.stderr.write(f"Failed to export zone '{zone.name}': {e}")
@@ -0,0 +1,51 @@
 from django.core.management.base import BaseCommand, CommandError
 from netbox_dns_bridge.models import IntegerKeyValueSetting
 class Command(BaseCommand):
    help = "Get or set integer key-value settings"
    def add_arguments(self, parser):
        parser.add_argument(
            "action", choices=["get", "set", "list"], help="Action to perform"
        )
        parser.add_argument("key", nargs="?", help="Setting key")
        parser.add_argument(
            "value", nargs="?", type=int, help="Value to set (required for 'set')"
        )
    def handle(self, *args, **options):
        action = options["action"]
        key = options.get("key")
        value = options.get("value")
        if action == "list":
            settings = IntegerKeyValueSetting.objects.all()
            if not settings.exists():
                self.stdout.write("No settings found.")
                return
            for setting in settings:
                self.stdout.write(str(setting))
        elif action == "get":
            if not key:
                raise CommandError("A key is required for GET")
            try:
                setting = IntegerKeyValueSetting.objects.get(key=key)
                self.stdout.write(f"{setting.key}: {setting.value}")
            except IntegerKeyValueSetting.DoesNotExist:
                raise CommandError(f"No setting was found for {key}")
        elif action == "set":
            if not key:
                raise CommandError("A setting is required for SET command")
            if value is None:
                raise CommandError("A value is required for SET command")
            try:
                setting = IntegerKeyValueSetting.objects.get(key=key)
                old_value = setting.value
                setting.value = value
                setting.save()
                self.stdout.write(f"Updated {key} from {old_value} to {value}")
            except IntegerKeyValueSetting.DoesNotExist:
                raise CommandError(f"No setting found for {key}")
@@ -0,0 +1,117 @@
 import logging
 import threading
 import dns.query
 import dns.message
 import dns.tsigkeyring
 import dns.name
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.rdtypes
 import dns.exception
 import dns.renderer
 from django.core.management.base import BaseCommand
 from django.conf import settings
 from netbox_dns.models import View
 from netbox_dns_bridge.request_handler import UDPRequestHandler, TCPRequestHandler
 from netbox_dns_bridge.dns_server import UDPDNSServer, TCPDNSServer
 from netbox_dns_bridge import catalog_zone_manager as catzm
 from netbox_dns_bridge.models import IntegerKeyValueSetting
 logger = logging.getLogger(__name__)
 class Command(BaseCommand):
    help = "Run a minimal AXFR DNS server using data from NetBox DNS plugin"
    def load_settings(self):
        self.settings = settings.PLUGINS_CONFIG.get("netbox_dns_bridge", None)
        if not self.settings:
            raise RuntimeError(
                "Command failed to initialize due to missing settings. Terminating Netbox."
            )
        self.tsig_keys = self.settings.get("tsig_keys", None)
        if not self.tsig_keys:
            raise RuntimeError("tsig_keys variable not set in plugin settings.")
    # Load TSIG keys and map them to views
    def load_tsig_key_settings(self):
        self.keyring = {}
        self.tsig_view_map = {}
        for view_name, data in self.tsig_keys.items():
            raw_key_name = data.get("keyname")
            secret = data.get("secret")
            algorithm_str = data.get("algorithm", "hmac-sha256")
            if not raw_key_name or not secret:
                logger.error(
                    f"Skipping TSIG key for view {view_name}: missing keyname or secret."
                )
                continue
            try:
                nb_view = View.objects.get(name=view_name)
            except View.DoesNotExist:
                logger.error(
                    f"Skipping TSIG key {raw_key_name}: view '{view_name}' not found."
                )
                continue
            # Normalize key name to absolute DNS name
            key_name_obj = dns.name.from_text(raw_key_name, origin=None).canonicalize()
            if not key_name_obj.is_absolute():
                key_name_obj = key_name_obj.concatenate(dns.name.root)
            key_name_str = key_name_obj.to_text()  # Will always include trailing do
            self.keyring[key_name_obj] = dns.tsig.Key(
                name=key_name_obj, secret=secret, algorithm=algorithm_str
            )
            self.tsig_view_map[key_name_str] = nb_view
            logger.debug(f"Loaded TSIG key: {key_name_str} view: {nb_view.name}")
        if not self.keyring:
            msg = "No TSIG keys found in database."
            logger.critical(msg)
            raise RuntimeError(msg)
    def add_arguments(self, parser):
        parser.add_argument(
            "--port", type=int, default=5354, help="Port number to listen on"
        )
        parser.add_argument(
            "--address", type=str, default="0.0.0.0", help="IP to bind to"
        )
    def handle(self, *args, **options):
        # Load parameters
        port = options["port"]
        address = options["address"]
        catzm.init()
        # Initialize settings
        self.load_settings()
        self.load_tsig_key_settings()
        udp_server = UDPDNSServer(
            (address, port), UDPRequestHandler, self.keyring, self.tsig_view_map
        )
        tcp_server = TCPDNSServer(
            (address, port), TCPRequestHandler, self.keyring, self.tsig_view_map
        )
        def run_udp_server(server):
            logger.debug(f"Query endpoint listening on {address} udp/{port}")
            server.serve_forever()
        udp_thread = threading.Thread(
            target=run_udp_server, args=(udp_server,), daemon=True
        )
        udp_thread.start()
        logger.debug(f"Query endpoint listening on {address} tcp/{port}")
        tcp_server.serve_forever()
@@ -0,0 +1,58 @@
 # Generated by Django 5.2.9 on 2026-04-08 11:29
 import django.db.models.deletion
 from django.db import migrations, models
 class Migration(migrations.Migration):
    initial = True
    dependencies = [
        (
            "netbox_dns",
            "0030_dnsseckeytemplate_comments_dnsseckeytemplate_owner_and_more",
        ),
    ]
    operations = [
        migrations.CreateModel(
            name="IntegerKeyValueSetting",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False
                    ),
                ),
                ("key", models.CharField(max_length=64)),
                ("value", models.IntegerField()),
            ],
            options={
                "default_permissions": (),
            },
        ),
        migrations.CreateModel(
            name="CatalogZoneMemberIdentifier",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False
                    ),
                ),
                ("name", models.CharField(max_length=26, unique=True)),
                (
                    "zone",
                    models.OneToOneField(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="catz_identifier",
                        to="netbox_dns.zone",
                    ),
                ),
            ],
            options={
                "ordering": ("name",),
            },
        ),
    ]
@@ -0,0 +1,33 @@
 from django.db import models
 import netbox.models
 import netbox_dns.models
 class IntegerKeyValueSetting(models.Model):
    key = models.CharField(max_length=64)
    value = models.IntegerField()
    def __str__(self):
        return f"{self.key}: {str(self.value)}"
    class Meta:
        default_permissions = ()
 class CatalogZoneMemberIdentifier(models.Model):
    name = models.CharField(
        max_length=26,
        unique=True,
    )
    zone = models.OneToOneField(
        to=netbox_dns.models.Zone,
        on_delete=models.CASCADE,
        related_name="catz_identifier",
    )
    class Meta:
        ordering = ("name",)
    def __str__(self):
        return self.name
@@ -0,0 +1,422 @@
 import logging
 import socketserver
 import socket
 import dns.query
 import dns.message
 import dns.tsigkeyring
 import dns.name
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.rdtypes
 import dns.exception
 import dns.renderer
 from netbox_dns.models import Zone, Record
 from netbox_dns.choices import ZoneStatusChoices, RecordStatusChoices
 from netbox_dns_bridge import catalog_zone_manager as catzm
 logger = logging.getLogger(__name__)
 class DNSBaseRequestHandler(socketserver.BaseRequestHandler):
    def __init__(self, request, client_address, server) -> None:
        self.MAX_WIRE = 65535
        self.RESERVED_TSIG = 300
        super().__init__(request, client_address, server)
    # _getZoneFromNB rewritten
    def _getZoneFromNB(self, zone_name, view_name) -> dns.zone.Zone:
        # Find the zone
        try:
            nb_zone = Zone.objects.get(
                name=zone_name,
                view__name=view_name,
                status=ZoneStatusChoices.STATUS_ACTIVE,
            )
        except Zone.DoesNotExist:
            return None
        # Build DNS zone
        zone = dns.zone.Zone(zone_name, dns.name.root)
        zone.rdclass = dns.rdataclass.IN
        nb_records = Record.objects.filter(
            zone=nb_zone, status=RecordStatusChoices.STATUS_ACTIVE
        )
        rdatasets_dict = {}
        for record in nb_records:
            rdtype = dns.rdatatype.from_text(record.type)
            if not record.name:
                name = zone.origin
            elif record.name.endswith("."):
                name = dns.name.from_text(record.name)
            else:
                name = dns.name.from_text(record.name, origin=zone.origin)
            # If the record has no TTL, use the zone default
            ttl = record.ttl or nb_zone.default_ttl
            # Apply quoting for TXT records to stop tokanizer
            # from cutting it up:
            value = record.value
            if rdtype == dns.rdatatype.TXT:
                if value.startswith('"') and value.endswith('"'):
                    value = value[1:-1].replace('" "', "").replace('"', '"')
                if len(value) > 255:
                    # This is a bug fix for netbox. If netbox allowed for
                    # an unquoted value to be larger then 255 characters,
                    # it misunderstood everything behind a ; as a comment.
                    chunks = [
                        '"{}"'.format(value[i : i + 255])
                        for i in range(0, len(value), 255)
                    ]
                    value = " ".join(chunks)
                else:
                    value = f'"{value}"'
            rdata = dns.rdata.from_text(
                dns.rdataclass.IN,
                rdtype,
                value,
                relativize=False,
                origin=zone.origin,
            )
            # Initialize rdataset if it doesn't exist for this name and type
            if name not in rdatasets_dict:
                rdatasets_dict[name] = {}
            if rdtype not in rdatasets_dict[name]:
                rdatasets_dict[name][rdtype] = dns.rdataset.Rdataset(
                    dns.rdataclass.IN, rdtype
                )
            # Add the rdata to the appropriate rdataset
            rdatasets_dict[name][rdtype].add(rdata, ttl)
        # Now, add all rdatasets to the zone
        for name, rdtypes in rdatasets_dict.items():
            for rdtype, rdataset in rdtypes.items():
                # Ensure rdataset has the same rdclass as the zone
                if rdataset.rdclass != zone.rdclass:
                    raise ValueError(
                        f"rdataset rdclass {rdataset.rdclass} does not match zone rdclass {zone.rdclass}"
                    )
                # Check if the rdataset has any rdata before creating an RRset
                if not rdataset:
                    logger.debug(f"Skipping empty rdataset for {name} {rdtype}")
                    continue  # Skip empty rdataset
                # Replace the rdataset for the given name and type
                zone.replace_rdataset(name, rdataset)
        return zone
    def _deny_request_bad_tsig(self, wire, tsig_error: dns.rcode) -> None:
        # Use empty keyring to parse TSIG without validating
        query = dns.message.from_wire(
            wire, keyring={}, ignore_trailing=True, continue_on_error=True
        )
        # Make a response
        response = dns.message.make_response(query)
        response.set_rcode(dns.rcode.REFUSED)
        if query.had_tsig:
            # Add TSIG with error code, but do not sign (no MAC, empty keyring)
            response.use_tsig(
                keyring={},  # empty; we're not signing
                keyname=query.keyname,
                tsig_error=tsig_error,
            )
        self._send_response(response.to_wire())
    def _send_response(self, data) -> None:
        raise NotImplementedError
    def _deny_request(self, query, rcode: dns.rcode = dns.rcode.REFUSED) -> None:
        response = dns.message.make_response(query)
        response.set_rcode(rcode)
        wire = response.to_wire(multi=False)
        self._send_response(wire)
    def _handle_soa_request(self, query, soa_rrset, zone, peer, nb_view, dname) -> None:
        # We assume that the SOA rdataset has at least one record (it usually does).
        soa_rdata = soa_rrset[0]  # Get the first SOA record
        # Now, create the rrset from the soa_rdata
        rrset = dns.rrset.from_rdata(zone.origin, soa_rrset.ttl, soa_rdata)
        response = dns.message.make_response(query)
        # Set the Authoritative Answer flag
        response.flags |= dns.flags.AA
        # Append the rrset to the response's answer section
        response.answer.append(rrset)
        # TSIG response
        if query.had_tsig:
            # If key was found in DB
            if query.keyname in self.server.keyring:
                response.use_tsig(
                    self.server.keyring, keyname=query.keyname, original_id=query.id
                )
            else:
                # unknown key — use an empty keyring so use_tsig() does not
                # raise KeyError trying to look up a key that isn't present.
                response.set_rcode(dns.rcode.REFUSED)
                response.use_tsig(
                    {},  # empty keyring; no signing
                    keyname=query.keyname,
                    tsig_error=dns.rcode.BADKEY,
                )
        data = response.to_wire(max_size=512)
        self._send_response(data)
        logger.info(f"{peer} SOA {nb_view.name}/{dname}")
    def _handle_axfr_request(self, query, zone, peer, nb_view, dname) -> None:
        if query.keyname not in self.server.keyring:
            logger.error(f"AXFR aborted: keyname {query.keyname} not in keyring")
            self._deny_request(query)
            return
        tsig_key = self.server.keyring[query.keyname]
        rrsets = []
        soa_rrset = None
        for name, rdataset in zone.iterate_rdatasets():
            if not name.is_absolute():
                name = name.concatenate(zone.origin)
            rrset = dns.rrset.from_rdata_list(name, rdataset.ttl, rdataset)
            if rdataset.rdtype == dns.rdatatype.SOA and soa_rrset is None:
                soa_rrset = rrset
            else:
                rrsets.append(rrset)
        rrsets.insert(0, soa_rrset)  # Opening SOA
        rrsets.append(soa_rrset)  # Closing SOA
        # 2. Create a Renderer for the first message
        r = dns.renderer.Renderer(
            id=query.id,
            flags=(dns.flags.QR | dns.flags.AA),
            max_size=self.MAX_WIRE,
            origin=None,
        )
        r.add_question(
            query.question[0].name,
            query.question[0].rdtype,
            query.question[0].rdclass,
        )
        # 3. Loop through RRsets
        tsig_ctx = None
        for rrset in rrsets:
            try:
                r.add_rrset(dns.renderer.ANSWER, rrset)
                if r.max_size - len(r.output.getvalue()) < self.RESERVED_TSIG:
                    raise dns.exception.TooBig("TSIG wont fit")
            except dns.exception.TooBig:
                # TSIG chain previous message
                r.write_header()
                tsig_ctx = r.add_multi_tsig(
                    ctx=tsig_ctx,
                    secret=tsig_key.secret,
                    algorithm=tsig_key.algorithm,
                    keyname=query.keyname,
                    fudge=300,
                    id=query.id,
                    tsig_error=0,
                    other_data=b"",
                    request_mac=r.mac if tsig_ctx else query.mac,
                )
                wire = r.get_wire()
                self.request.sendall(len(wire).to_bytes(2, "big") + wire)
                # Start new renderer
                r = dns.renderer.Renderer(
                    id=query.id,
                    flags=(dns.flags.QR | dns.flags.AA),
                    max_size=self.MAX_WIRE,
                    origin=None,
                )
                r.add_question(
                    query.question[0].name,
                    query.question[0].rdtype,
                    query.question[0].rdclass,
                )
                try:
                    r.add_rrset(dns.renderer.ANSWER, rrset)
                except dns.exception.TooBig:
                    logger.error(
                        f"RRset {rrset.name}/{dns.rdatatype.to_text(rrset.rdtype)} "
                        f"exceeds MAX_WIRE ({self.MAX_WIRE}) and cannot be sent; "
                        f"skipping."
                    )
        # 4. Final message with terminating TSIG
        r.write_header()
        tsig_ctx = r.add_multi_tsig(
            ctx=tsig_ctx,
            secret=tsig_key.secret,
            algorithm=tsig_key.algorithm,
            keyname=query.keyname,
            fudge=300,
            id=query.id,
            tsig_error=0,
            other_data=b"",
            request_mac=r.mac if tsig_ctx else query.mac,
        )
        wire = r.get_wire()
        self._send_response(wire)
        logger.info(f"{peer} AXFR {nb_view.name}/{dname}")
    def _handle_dns_query(self, wire) -> None:
        peer = self.client_address[0]
        try:
            query = dns.message.from_wire(
                wire,
                keyring=self.server.keyring,
                continue_on_error=False,
                ignore_trailing=True,
            )
        except dns.tsig.BadSignature as e:
            logger.warning(f"Request denied from {peer} failed TSIG verification: {e}")
            self._deny_request_bad_tsig(wire, dns.rcode.BADSIG)
            return
        except (dns.message.UnknownTSIGKey, dns.tsig.BadAlgorithm) as e:
            logger.warning(f"Request denied from {peer} with bad TSIG key: {e}")
            self._deny_request_bad_tsig(wire, dns.rcode.BADKEY)
            return
        except Exception as e:
            logger.error("Error parsing query: ", e)
            return
        # If there was no question in the query, refuse
        if len(query.question) != 1:
            self._deny_request(query)
            return
        question = query.question[0]
        qname = question.name
        qtype = question.rdtype
        dname = qname.to_text().rstrip(".")
        # Only process AXFR/SOA queris
        if qtype not in (dns.rdatatype.AXFR, dns.rdatatype.SOA):
            logger.warning(
                f"Request denied from {peer}: Request was not AXFR or SOA (Type: {qtype})"
            )
            self._deny_request(query)
            return
        # Identify TSIG key used
        if not query.had_tsig:
            logger.warning(f"Request denied from {peer}: No TSIG key used")
            self._deny_request(query)
            return
        key_name = query.keyname.canonicalize().to_text()
        # Check if the key matches a view
        nb_view = self.server.tsig_view_map.get(key_name)
        if not nb_view:
            logger.warning(
                f"Request denied from {peer}: {key_name} does not match a view"
            )
            self._deny_request(query)
            return
        # Check if catalog zone
        if dname == "catz" or dname == f"{nb_view.name}.catz":
            zone = catzm.create_zone(dname, nb_view.name)
        else:
            zone = self._getZoneFromNB(dname, nb_view.name)
        # When zone was not found, let client know
        if not zone:
            logger.warning(f"Zone {dname} not found in view {nb_view.name}")
            self._deny_request(query)
            return
        # Retrieve the existing SOA record from the Zone
        soa_rrset = zone.get_rdataset(zone.origin, dns.rdatatype.SOA)
        if soa_rrset is None:
            logger.error(f"Zone {dname} has no SOA — aborting")
            return
        if qtype == dns.rdatatype.SOA:
            self._handle_soa_request(query, soa_rrset, zone, peer, nb_view, dname)
        elif qtype == dns.rdatatype.AXFR:
            self._handle_axfr_request(query, zone, peer, nb_view, dname)
 class UDPRequestHandler(DNSBaseRequestHandler):
    def __init__(self, request, client_address, server) -> None:
        super().__init__(request, client_address, server)
    def _send_response(self, data) -> None:
        sock = self.request[1]
        sock.sendto(data, self.client_address)
    def handle(self) -> None:
        data, sock = self.request
        peer = self.client_address[0]
        try:
            self._handle_dns_query(data)
        except Exception as e:
            logger.error(f"Error handling request from {peer}: {e}")
            import traceback
            traceback.print_exc()
 class TCPRequestHandler(DNSBaseRequestHandler):
    def __init__(self, request, client_address, server) -> None:
        super().__init__(request, client_address, server)
    def _send_response(self, data) -> None:
        length = len(data).to_bytes(2, byteorder="big")
        self.request.sendall(length + data)
    def handle(self) -> None:
        peer = self.client_address[0]
        sock = self.request  # TCP socket
        sock.settimeout(10.0)  # Default 10 second timeout for inactivity
        try:
            while True:
                # Read 2-byte length prefix
                length_data = sock.recv(2)
                if not length_data:
                    return  # connection closed by peer
                if len(length_data) < 2:
                    # Incomplete length data, wait for more or fail
                    while len(length_data) < 2:
                        chunk = sock.recv(2 - len(length_data))
                        if not chunk:
                            return
                        length_data += chunk
                length = int.from_bytes(length_data, byteorder="big")
                wire = b""
                while len(wire) < length:
                    chunk = sock.recv(length - len(wire))
                    if not chunk:
                        return  # connection closed
                    wire += chunk
                self._handle_dns_query(wire)
        except socket.timeout:
            logger.debug(f"Connection from {peer} timed out")
        except Exception as e:
            logger.error(f"Error handling request from {peer}: {e}")
            import traceback
            traceback.print_exc()
@@ -0,0 +1,37 @@
 from django.db.models.signals import pre_save, post_save
 from django.dispatch import receiver
 from netbox_dns.models import Zone
 from . import catalog_zone_manager as catzm
@receiver(pre_save, sender=Zone)
 def zone_pre_save(sender, instance, **kwargs):
    """
    Cache the old name so post_save can see if it changed.
    """
    if instance.pk:
        try:
            instance._old_name = sender.objects.only("name").get(pk=instance.pk).name
        except sender.DoesNotExist:
            instance._old_name = None
    else:
        instance._old_name = None
@receiver(post_save, sender=Zone)
 def sync_catalog_zone_identifier(sender, instance, created, **kwargs):
    """
    Ensure CatalogZoneMemberIdentifier exists for each Zone
    and keep its identifier in sync.
    """
    if created:
        # Create the related object on Zone creation
        catzm.update_member_identifier(instance)
    else:
        old_name = getattr(instance, "_old_name", None)
        # If the name did not change, do nothing
        if old_name == instance.name:
            return
        catzm.update_member_identifier(instance)
@@ -0,0 +1,35 @@
 import os
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.exception
 import netbox_dns.models
 def export_bind_zone_file(nb_zone: netbox_dns.models.Zone, file_path: str):
    # Create dnspython zone object
    dp_zone = dns.zone.Zone(origin=dns.name.from_text(nb_zone.name))
    for record in nb_zone.records.all():
        rname = record.name or "@"
        rdclass = dns.rdataclass.IN
        rdatatype = dns.rdatatype.from_text(record.type)
        # Create rdata object
        rdata = dns.rdata.from_text(rdclass, rdatatype, record.value)
        # Create rdataset
        rdataset = dns.rdataset.Rdataset(rdclass, rdatatype)
        rdataset.add(rdata, record.ttl)
        # Add to zone
        node = dp_zone.find_node(rname, create=True)
        node.rdatasets.append(rdataset)
    # Write zone to file in BIND format
    try:
        with open(file_path, "w") as f:
            dp_zone.to_file(f, sorted=True)
    except IOError as e:
        raise IOError(f"Failed to write zone file to {file_path}: {e}")
@@ -3,27 +3,30 @@ requires = ["setuptools>=61", "wheel"]
 build-backend = "setuptools.build_meta"
 [project]
-name = "netbox-plugin-bind-provisioner"
+name = "netbox-plugin-dns-bridge"
 dynamic = ["version"]
-description = "A Bind provisioning plugin that uses netbox_dns for its data source"
+description = "A bridge between netbox-plugin-dns and your DNS infrastructure."
 authors = [
    { name = "Sven Luethi" },
 ]
-license = { text = "GPL-2.0" }
+license = { file = "LICENSE.md" }
 readme = "README.md"
 requires-python = ">=3.7"
-dependencies = ["netbox-plugin-dns"]
+dependencies = [
 "netbox-plugin-dns>=1.5.0",
 "dnspython>=2.8.0"
 ]
 [tool.setuptools]
 include-package-data = true
 zip-safe = false
-package-dir = { "" = "src" }
+package-dir = { "" = "." }
 [tool.setuptools.packages.find]
-where = ["src"]
+where = ["."]
 [tool.setuptools.dynamic]
-version = { attr = "netbox_plugin_bind_provisioner.__version__" }
+version = { attr = "netbox_dns_bridge.__version__" }
 [project.urls]
 Homepage = "https://github.com/Suraxius/netbox-plugin-bind-provisioner"
@@ -1 +0,0 @@
 netbox-plugin-dns>=1.2.0
@@ -1,55 +0,0 @@
 import logging
 from netbox.plugins import PluginConfig
 from django.db import models
 from django.utils.translation import gettext_lazy as _
 from django.dispatch import receiver
 from django.conf import settings
 __version__ = "0.9.5"
 logger = logging.getLogger(__name__)
 logging.basicConfig(
    level=logging.DEBUG,  # Log level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",  # Log format
    datefmt="%Y-%m-%d %H:%M:%S",  # Date format for timestamps
 )
 class BindProvisionerConfig(PluginConfig):
    name = "netbox_plugin_bind_provisioner"
    verbose_name = "Netbox Bind Provisioner"
    description = "Provisions Zones to a Bind Server configured as hidden master"
    version = __version__
    author = "Sven Luethi"
    author_email = "sven.luethi@everyware.ch"
    base_url = "bind_provisioner"
    def ready(self):
        self.settings = settings.PLUGINS_CONFIG.get(self.name, None)
        if not self.settings:
            raise RuntimeError(
                f"{self.name}: Plugin {self.verbose_name} failed to initialize due to missing settings. Terminating Netbox."
            )
    #    from . import bind, rndc
    #
    #    if not bind.zoneDirWritable():
    #        BIND_ZONE_DIR = settings.get("BIND_ZONE_DIR")
    #        logger.error(f"Bind's zone file directory {BIND_ZONE_DIR} is not writable.")
    #        raise RuntimeError(
    #            "Plugin initialization failed due to failed writable-zone-directory healthcheck."
    #        )
    #    if not rndc.tsigKeyFileAccessible():
    #        RNDC_KEY_FILE = settings.get("RNDC_KEY_FILE")
    #        logger.error(f"The RNDC key file {RNDC_KEY_FILE} is inaccessible.")
    #        raise RuntimeError(
    #            "Plugin initialization failed due to failed rndc-key-accessible healthcheck."
    #        )
    #
    #    # Import signal callbacks from signals.py (With @receiver decorations)
    #    from . import signals
 config = BindProvisionerConfig
 default_app_config = ".apps.NetboxBindProvisionerConfig"
@@ -1,688 +0,0 @@
 import logging
 import socketserver
 import os
 import threading
 import dns.query
 import dns.message
 import dns.tsigkeyring
 import dns.name
 import dns.zone
 import dns.rdatatype
 import dns.rdataclass
 import dns.rdtypes
 import dns.exception
 import dns.renderer
 # from hashlib import sha256
 from django.core.management.base import BaseCommand
 from django.conf import settings
 from django.utils import timezone
 from netbox_dns.models import Zone, Record, View
 from netbox_dns.choices import ZoneStatusChoices, RecordStatusChoices
 from datetime import datetime
 logger = logging.getLogger('bind-transfer-endpoint')
 class CatalogZoneAssembler():
    lock = threading.Lock()
    _serial_max = 0xFFFFFFFF
    _serial = 1
    _serial_file = None
    _previous_last_zone_update = None
    # Following function loads the last serial from file. No return value
    # but it sets the setting "catalog_serial" or terminates the plugin on failure.
    @classmethod
    def initCatalogZoneSerial(cls, serial_file):
        """
        Load a 32-bit unsigned int serial from a text file.
        If the file doesn't exist, initialize it with 1.
        Returns the serial as an int.
        """
        cls._serial_file = serial_file
        if not os.path.exists(cls._serial_file):
            try:
                with open(cls._serial_file, "w") as f:
                    f.write(f"{cls._serial}\n")
                return
            except OSError as e:
                raise RuntimeError(
                    f"Failed to initialize serial file {cls._serial_file}: {e}"
                )
        else:
            try:
                with open(cls._serial_file, "r") as f:
                    value = int(f.read().strip())
                if 0 < value <= cls._serial_max:
                    cls._serial = value
                else:
                    raise ValueError(f"Serial value out of 32-bit range: {value}")
            except (OSError, ValueError) as e:
                raise RuntimeError(f"Failed to read serial from {cls._serial_file}: {e}")
    @classmethod
    def incrementCatalogZoneSerial(cls):
        """
        Increments the in-memory catalog serial and saves it to file.
        Updates _serial.
        """
        if 0 < cls._serial < cls._serial_max:
            cls._serial += 1
        else:
            logger.warn(
                f"Failed to incremenet catalog serial {cls._serial}. Will overflow serial back to 1."
            )
            cls._serial = 1
        try:
            with open(cls._serial_file, "w") as f:
                f.write(f"{cls._serial}\n")
        except OSError as e:
            logger.error(f"Failed to write updated serial to {cls._serial_file}: {e}")
    @classmethod
    def createCatalogZone(cls, view_name, soa_only=False):
        # Synchronize following across threads as TCP and UDP listener both use it.
        with cls.lock:
            #cls = self.__class__
            #datestamp = datetime.now().strftime("%y%m%d")
            #latest_zone = Zone.objects.filter().order_by("-last_updated").first()
            latest_zone = Zone.objects.filter(status=ZoneStatusChoices.STATUS_ACTIVE).order_by('-last_updated').first()
            last_zone_update = getattr(latest_zone, 'last_updated', None)
            # Check if there was a zone updated since last call
            # If no zone was found previously then this will be false since (None != None) = False
            if cls._previous_last_zone_update != last_zone_update:
                if last_zone_update is not None:
                    logger.debug(
                        f"Zone {latest_zone.name} was updated in view {latest_zone.view.name}"
                    )
                # Setting previous last zone update for next iteration:
                cls._previous_last_zone_update = last_zone_update
                cls.incrementCatalogZoneSerial()
            # If there was no update, do nothing.
            #else:
            #    logger.debug(f"No need to update serial for catalog zone")
        # Zone origin
        origin = dns.name.from_text("catz", dns.name.root)
        # Create a new empty zone
        zone = dns.zone.Zone(origin)
        zone.rdclass = dns.rdataclass.IN
        # get zones from netbox
        nb_zones = Zone.objects.filter(
            view__name=view_name, status=ZoneStatusChoices.STATUS_ACTIVE
        )
        ptr_base = dns.name.from_text("zones", origin)
        for nb_zone in nb_zones:
            ttl = nb_zone.soa_ttl
            qname = dns.name.from_text(nb_zone.name, dns.name.root)
            # zone_id = sha256(qname.to_text().encode()).hexdigest()[0:63]
            zone_id = str(nb_zone.id)
            # Create PTR record
            ptr_name = dns.name.from_text(zone_id, ptr_base)
            assert ptr_name.is_subdomain(origin)
            rdata = dns.rdata.from_text(
                dns.rdataclass.IN, dns.rdatatype.PTR, qname.to_text()
            )
            rdataset = zone.find_rdataset(ptr_name, dns.rdatatype.PTR, create=True)
            rdataset.add(rdata, ttl)
            # Configure DNSSec Policy for member Zone if DNSSec is enabled
            if nb_zone.dnssec_policy:
                # Configure policy
                rid = dns.name.from_text(f"policy.dnssec", ptr_name)
                rdata = dns.rdata.from_text(
                    dns.rdataclass.IN, dns.rdatatype.TXT, nb_zone.dnssec_policy.name
                )
                rdataset = zone.find_rdataset(rid, dns.rdatatype.TXT, create=True)
                rdataset.add(rdata, ttl)
            # Configure dnssec status for member zone
            status = str(1 if nb_zone.dnssec_policy else 0)
            rid = dns.name.from_text(f"enabled.dnssec", ptr_name)
            rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.TXT, status)
            rdataset = zone.find_rdataset(rid, dns.rdatatype.TXT, create=True)
            rdataset.add(rdata, ttl)
        # SOA Record components
        ttl = 3600
        rclass = dns.rdataclass.IN
        rtype = dns.rdatatype.SOA
        mname = dns.name.root  # dns.name.from_text("invalid.", origin)
        rname = dns.name.root  # dns.name.from_text("contact.master.", origin)
        serial = cls._serial
        refresh = 60
        retry = 10
        expire = 1209600
        minimum = 86400
        # Create SOA rdata object
        soa_rdata = dns.rdata.from_text(
            rclass,
            rtype,
            f"{mname} {rname} {serial} {refresh} {retry} {expire} {minimum}",
        )
        # Create Rdataset and add the RDATA to it
        soa_rdataset = dns.rdataset.Rdataset(rclass, rtype)
        soa_rdataset.add(soa_rdata, ttl)
        # Add to the origin node in the zone
        node = zone.find_node(origin, create=True)
        node.rdatasets.append(soa_rdataset)
        # NS record for catz.
        ns_name = dns.name.from_text("invalid", dns.name.root)
        ns_rdata = dns.rdata.from_text(
            dns.rdataclass.IN, dns.rdatatype.NS, str(ns_name)
        )
        ns_rdataset = dns.rdataset.Rdataset(dns.rdataclass.IN, dns.rdatatype.NS)
        ns_rdataset.add(ns_rdata, 86400)
        # Add to node (catz. is the origin)
        ns_node = zone.find_node(origin, create=True)
        ns_node.rdatasets.append(ns_rdataset)
        # TXT record for version.catz.
        version_name = dns.name.from_text(
            "version", origin
        )  # relative to origin "catz."
        txt_rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.TXT, '"2"')
        txt_rdataset = dns.rdataset.Rdataset(dns.rdataclass.IN, dns.rdatatype.TXT)
        txt_rdataset.add(txt_rdata, 86400)
        # Add to node version.catz.
        txt_node = zone.find_node(version_name, create=True)
        txt_node.rdatasets.append(txt_rdataset)
        return zone
 class DNSBaseRequestHandler(socketserver.BaseRequestHandler):
     # getZoneFromNB rewritten
    def getZoneFromNB(self, zone_name, view_name, soa_only=False):
        # Find the zone
        try:
            nb_zone = Zone.objects.get(
                name=zone_name, view=view_name, status=ZoneStatusChoices.STATUS_ACTIVE
            )
        except Zone.DoesNotExist:
            return None
        # Build DNS zone
        zone = dns.zone.Zone(zone_name, dns.name.root)
        zone.rdclass = dns.rdataclass.IN
        nb_records = Record.objects.filter(
            zone=nb_zone, status=RecordStatusChoices.STATUS_ACTIVE
        )
        rdatasets_dict = {}
        for record in nb_records:
            rdtype = dns.rdatatype.from_text(record.type)
            if not record.name:
                name = zone.origin
            elif record.name.endswith("."):
                name = dns.name.from_text(record.name)
            else:
                name = dns.name.from_text(record.name, origin=zone.origin)
            # If the record has no TTL, use the zone default
            ttl = record.ttl or nb_zone.default_ttl
            rdata = dns.rdata.from_text(
                dns.rdataclass.IN,
                rdtype,
                record.value,
                relativize=False,
                origin=zone.origin,
            )
            # Initialize rdataset if it doesn't exist for this name and type
            if name not in rdatasets_dict:
                rdatasets_dict[name] = {}
            if rdtype not in rdatasets_dict[name]:
                rdatasets_dict[name][rdtype] = dns.rdataset.Rdataset(dns.rdataclass.IN, rdtype)
            # Add the rdata to the appropriate rdataset
            rdatasets_dict[name][rdtype].add(rdata, ttl)
        # Now, add all rdatasets to the zone
        for name, rdtypes in rdatasets_dict.items():
            for rdtype, rdataset in rdtypes.items():
                # Ensure rdataset has the same rdclass as the zone
                if rdataset.rdclass != zone.rdclass:
                    raise ValueError(f"rdataset rdclass {rdataset.rdclass} does not match zone rdclass {zone.rdclass}")
                # Check if the rdataset has any rdata before creating an RRset
                if not rdataset:
                    logger.debug(f"Skipping empty rdataset for {name} {rdtype}")
                    continue  # Skip empty rdataset
                # Replace the rdataset for the given name and type
                zone.replace_rdataset(name, rdataset)
        return zone
    def denyRequest(self, query, rcode: dns.rcode = dns.rcode.REFUSED):
        response = dns.message.make_response(query)
        response.set_rcode(rcode)
        wire = response.to_wire(multi=False)
        length = len(wire).to_bytes(2, byteorder="big")
        self.request.sendall(length + wire)
    def denyRequestBadTSIG(self, wire, tsig_error: dns.rcode):
        # Use empty keyring to parse TSIG without validating
        query = dns.message.from_wire(wire, keyring={}, ignore_trailing=True, continue_on_error=True)
        # Make a response
        response = dns.message.make_response(query)
        response.set_rcode(dns.rcode.REFUSED)
        if query.had_tsig:
            # Add TSIG with BADKEY, but do not sign (no MAC)
            response.use_tsig(
                keyring={},  # empty; we're not signing
                keyname=query.keyname,
                tsig_error=tsig_error
            )
        self.denyRequest(query)
 class UDPRequestHandler(DNSBaseRequestHandler):
    def handle(self):
        data, sock = self.request
        peer = self.client_address[0]
        query = None
        try:
            query = dns.message.from_wire(
                data,
                keyring=self.server.keyring,
                continue_on_error=True,
                ignore_trailing=True
            )
        except Exception as e:
            logger.error("Error parsing query:", e)
            return
        # Create a response
        response = dns.message.make_response(query)
        # Set the Authoritative Answer flag
        response.flags |= dns.flags.AA
        question = query.question[0]
        # Get the queried record name and type:
        qname = question.name
        qtype = question.rdtype
        dname = qname.to_text().rstrip(".")
        # Only process SOA queries
        if qtype != dns.rdatatype.SOA:
            logger.warning(f"Request denied from {peer}: Request was not SOA (Type: {qtype})")
            self.denyRequest(query)
            return
        # Identify TSIG key used
        key_name = query.keyname.canonicalize().to_text() if query.keyname else None
        if not key_name:
            logger.warning(f"Request denied from {peer}: No TSIG key used")
            self.denyRequest(query)
            return
        # Check if key matches a view
        nb_view = self.server.tsig_view_map.get(key_name)
        if not nb_view:
            logger.warning(f"Request denied from {peer}: {key_name} does not match a view")
            self.denyRequestBadTSIG(wire, dns.rcode.BADKEY)
            return
        # Check if catalog zone
        if dname == "catz":
            zone = CatalogZoneAssembler.createCatalogZone(nb_view.name, soa_only=True)
        # If generic zone, retreive from NB
        else:
            zone = self.getZoneFromNB(dname, nb_view, soa_only=True)
            # When zone was not found, let client know
            if not zone:
                logger.warning(f"Zone {nb_view.name}/{dname} not found in NB")
                self.denyRequest(query)
                return
        # Retrieve the existing SOA record from the Zone
        soa_rdataset = zone.get_rdataset(zone.origin, dns.rdatatype.SOA)
        # We assume that the SOA rdataset has at least one record (it usually does).
        soa_rdata = soa_rdataset[0]  # Get the first SOA record
        # Now, create the rrset from the soa_rdata
        #rrset = dns.rrset.from_rdata(dname, soa_rdataset.ttl, soa_rdata)
        rrset = dns.rrset.from_rdata(zone.origin, soa_rdataset.ttl, soa_rdata)
        # Append the rrset to the response's answer section
        response.answer.append(rrset)
        # TSIG response
        if query.had_tsig:
            # If key was found in DB
            if query.keyname in self.server.keyring:
                response.use_tsig(self.server.keyring, keyname=query.keyname, original_id=query.id)
            else:
                # If key is unknown
                response.set_rcode(dns.rcode.REFUSED)
                # Generate new key for keyname provided
                #keyname = query.keyname
                #b64 = base64.b64encode(urandom(32)).decode("ascii")
                #newkey = dns.tsigkeyring.from_text({ keyname: b64 })
                response.use_tsig(self.server.keyring, keyname=query.keyname, tsig_error=dns.rcode.BADKEY)
        # Send back the response
        response_wire = response.to_wire(max_size=512)
        sock.sendto(response_wire, self.client_address)
        logger.debug(f"{peer} SOA {nb_view.name}/{dname}")
 class TCPRequestHandler(DNSBaseRequestHandler):
    def handle(self):
        MAX_WIRE = 65535
        # MAX_WIRE = 2000 # For testing fragmentation
        RESERVED_TSIG = 300
        # create a var for setting the client ip in log messages
        peer = self.client_address[0]
        try:
            # Receive the entire message....
            sock = self.request  # TCP socket
            # Read 2-byte length prefix
            length_data = sock.recv(2)
            if len(length_data) < 2:
                return
            length = int.from_bytes(length_data, byteorder="big")
            wire = b""
            while len(wire) < length:
                chunk = sock.recv(length - len(wire))
                if not chunk:
                    return # connection closed
                wire += chunk
            # Parse the query
            query = None
            try:
                query = dns.message.from_wire(wire, keyring=self.server.keyring)
            # If TSIG signature doesnt match our key, refuse query:
            except dns.tsig.BadSignature as e:
                logger.warning(f"Request denied from {peer} failed TSIG verification: {e}")
                self.denyRequestBadTSIG(wire, dns.rcode.BADSIG)
                return
            # If TSIG Key used is not in our list, refuse query:
            except dns.message.UnknownTSIGKey as e:
                logger.warning(f"Request denied from {peer} with bad TSIG key: {e}")
                self.denyRequestBadTSIG(wire, dns.rcode.BADKEY)
                return
            # If there was no question in the query, refuse
            if len(query.question) != 1:
                self.denyRequest(query)
                return
            # Get the queried record name and type:
            qname = query.question[0].name
            qtype = query.question[0].rdtype
            dname = qname.to_text().rstrip(".")
            # Only process AXFR queries
            if qtype != dns.rdatatype.AXFR:
            #if qtype != dns.rdatatype.AXFR or qtype != dns.rdatatype.SOA:
                logger.warning(f"Request denied from {peer}: Request was not AXFR (Type: {qtype})")
                self.denyRequest(query)
                return
            # Identify TSIG key used
            key_name = query.keyname.canonicalize().to_text() if query.keyname else None
            if not key_name:
                logger.warning(f"Request denied from {peer}: No TSIG key used")
                self.denyRequest(query)
                return
            # Check if the key matches a view
            nb_view = self.server.tsig_view_map.get(key_name)
            if not nb_view:
                logger.warning(f"Request denied from {peer}: {key_name} does not match a view")
                self.denyRequest(query)
                return
            # Check if catalog zone
            if dname == "catz":
                #zone = self.createCatalogZone(str(nb_view))
                zone = CatalogZoneAssembler.createCatalogZone(nb_view.name)
            else:
                zone = self.getZoneFromNB(dname, nb_view)
            # When zone was not found, let client know
            if not zone:
                logger.warning(f"Zone {dname} not found in view {nb_view.name}")
                self.denyRequest(query)
                return
            # 1. Prepare SOA + RRsets (identical to your code)
            soa_rrset = None
            rrsets = []
            for name, rdataset in zone.iterate_rdatasets():
                if not name.is_absolute():
                    name = name.concatenate(zone.origin)
                rrset = dns.rrset.from_rdata_list(name, rdataset.ttl, rdataset)
                if rdataset.rdtype == dns.rdatatype.SOA and soa_rrset is None:
                    soa_rrset = rrset
                else:
                    rrsets.append(rrset)
            if soa_rrset is None:
                logger.error(f"Zone {dname} has no SOA — aborting AXFR")
                return
            rrsets.insert(0, soa_rrset)  # Opening SOA
            rrsets.append(soa_rrset)  # Closing SOA
            # 2. Create a Renderer for the first message
            r = dns.renderer.Renderer(
                id=query.id, flags=(dns.flags.QR | dns.flags.AA), max_size=MAX_WIRE, origin=None
            )
            r.add_question(
                query.question[0].name,
                query.question[0].rdtype,
                query.question[0].rdclass,
            )
            # 3. Loop through RRsets
            tsig_ctx = None
            for rrset in rrsets:
                # logger.debug(f"Iterating over rrset {rrset}. tsig_ctx: {tsig_ctx}")
                try:
                    # logger.debug(f"Adding {rrset} to renderer object")
                    r.add_rrset(dns.renderer.ANSWER, rrset)
                    if r.max_size - len(r.output.getvalue()) < RESERVED_TSIG:
                        raise dns.exception.TooBig("TSIG wont fit")
                except dns.exception.TooBig:
                    # TSIG chain previous message
                    r.write_header()
                    tsig_ctx = r.add_multi_tsig(
                        ctx=tsig_ctx,
                        secret=self.server.keyring[query.keyname],
                        keyname=query.keyname,
                        fudge=300,
                        id=query.id,
                        tsig_error=0,
                        other_data=b"",
                        request_mac=r.mac if tsig_ctx else query.mac,
                    )
                    wire = r.get_wire()
                    self.request.sendall(len(wire).to_bytes(2, "big") + wire)
                    # Start new renderer
                    r = dns.renderer.Renderer(
                        id=query.id, flags=(dns.flags.QR | dns.flags.AA), max_size=MAX_WIRE, origin=None
                    )
                    r.add_question(
                        query.question[0].name,
                        query.question[0].rdtype,
                        query.question[0].rdclass,
                    )
                    r.add_rrset(dns.renderer.ANSWER, rrset)
            # 4. Final message with terminating TSIG
            r.write_header()
            # logger.debug(f"Final message. tsig_ctx: {tsig_ctx}")
            tsig_ctx = r.add_multi_tsig(
                ctx=tsig_ctx,
                secret=self.server.keyring[query.keyname],
                keyname=query.keyname,
                fudge=300,
                id=query.id,
                tsig_error=0,
                other_data=b"",
                # request_mac=r.mac if tsig_ctx else None,
                request_mac=r.mac if tsig_ctx else query.mac,
            )
            wire = r.get_wire()
            self.request.sendall(len(wire).to_bytes(2, "big") + wire)
            #logger.debug(f"Zone transfer request for {nb_view.name}/{dname} from {peer}")
            logger.debug(f"{peer} AXFR {nb_view.name}/{dname}")
        except Exception as e:
            logger.error(f"Error handling request from {peer}: {e}")
            import traceback
            traceback.print_exc()
 class TCPDNSServer(socketserver.TCPServer):
    allow_reuse_address = True
    def __init__(self, server_address, handler_class, keyring, tsig_view_map):
        super().__init__(server_address, handler_class)
        self.keyring = keyring
        self.tsig_view_map = tsig_view_map
 class UDPDNSServer(socketserver.UDPServer):
    allow_reuse_address = True
    def __init__(self, server_address, handler_class, keyring, tsig_view_map):
        super().__init__(server_address, handler_class)
        self.keyring = keyring
        self.tsig_view_map = tsig_view_map
 class Command(BaseCommand):
    help = "Run a minimal AXFR DNS server using NetBox DNS plugin data"
    def loadSettings(self):
        self.settings = settings.PLUGINS_CONFIG.get("netbox_plugin_bind_provisioner", None)
        if not self.settings:
            raise RuntimeError(
                "Command failed to initialize due to missing settings. Terminating Netbox."
            )
        self.tsig_keys = self.settings.get("tsig_keys", None)
        if not self.tsig_keys:
            raise RuntimeError(
                "tsig_keys variable not set in plugin settings."
            )
    def loadCatalogZoneSettings(self):
        serial_file = self.settings.get("catalog_serial_file", None)
        if not serial_file:
            raise RuntimeError(
                "catalog_serial_file variable not set in plugin settings."
            )
        else:
            CatalogZoneAssembler.initCatalogZoneSerial(serial_file)
    def loadTSIGKeySettings(self):
        # Load TSIG keys and map them to views
        self.keyring = {}
        self.tsig_view_map = {}
        for view_name, data in self.tsig_keys.items():
            raw_key_name = data.get("keyname")
            secret = data.get("secret")
            algorithm_str = data.get("algorithm", "hmac-sha256")
            if not raw_key_name or not secret:
                logger.error(
                    f"Skipping TSIG key for view {view_name}: missing keyname or secret."
                )
                continue
            try:
                nb_view = View.objects.get(name=view_name)
            except View.DoesNotExist:
                logger.error(
                    f"Skipping TSIG key {raw_key_name}: view '{view_name}' not found."
                )
                continue
            # Normalize key name to absolute DNS name
            key_name_obj = dns.name.from_text(raw_key_name, origin=None).canonicalize()
            if not key_name_obj.is_absolute():
                key_name_obj = key_name_obj.concatenate(dns.name.root)
            key_name_str = key_name_obj.to_text()  # Will always include trailing do
            self.keyring[key_name_obj] = dns.tsig.Key(
                name=key_name_obj, secret=secret, algorithm=algorithm_str
            )
            self.tsig_view_map[key_name_str] = nb_view
            logger.debug(f"Loaded TSIG key: {key_name_str} (view: {nb_view.name})")
        if not self.keyring:
            msg = "No TSIG keys found in database."
            logger.critical(msg)
            raise RuntimeError(msg)
    def add_arguments(self, parser):
        parser.add_argument('--port', type=int, default=5354, help='Port number to listen on')
        parser.add_argument('--address', type=str, default="0.0.0.0", help='IP to bind to')
    def handle(self, *args, **options):
        # Load parameters
        port = options['port']
        address = options['address']
        # Initialize settings
        self.loadSettings()
        self.loadCatalogZoneSettings()
        self.loadTSIGKeySettings()
        udp_server = UDPDNSServer((address, port), UDPRequestHandler, self.keyring, self.tsig_view_map)
        tcp_server = TCPDNSServer((address, port), TCPRequestHandler, self.keyring, self.tsig_view_map)
        def run_udp_server(server):
            logger.debug(f"SOA endpoint listening on {address} udp/{port}")
            server.serve_forever()
        udp_thread = threading.Thread(target=run_udp_server, args=(udp_server,), daemon=True)
        udp_thread.start()
        logger.debug(f"AXFR endpoint listening on {address} tcp/{port}")
        tcp_server.serve_forever()
Author	SHA1	Message	Date
Sven Luthi	6418ed56e6	modified: README.md	2026-04-09 19:10:39 +02:00
Sven Luthi	fd16f7e701	modified: netbox_dns_bridge/__init__.py Bump version to 1.5.2	2026-04-09 18:51:54 +02:00
Sven Luthi	f926795d1b	modified: netbox_dns_bridge/request_handler.py Change query logging from debug to info. Seeing queries is very useful :)	2026-04-09 18:36:14 +02:00
Sven Luthi	eedc01303b	modified: netbox_dns_bridge/catalog_zone_manager.py modified: netbox_dns_bridge/request_handler.py modified: netbox_dns_bridge/utils.py Various little bug fixes. Analysed by AI but fixed by hand to ensure integrity.	2026-04-09 18:28:05 +02:00
Sven Luthi	646059bb07	modified: netbox_dns_bridge/signals.py Fix import path	2026-04-09 17:27:00 +02:00
Sven Luthi	f41b4cea56	modified: netbox_dns_bridge/request_handler.py Closes issue #15	2026-04-09 15:04:39 +02:00
Sven Luthi	3dec22b9f3	modified: README.md	2026-04-09 14:32:50 +02:00
Sven Luthi	b23c773bee	modified: README.md	2026-04-09 14:27:46 +02:00
Sven Luthi	53b12c9e15	modified: README.md - Improve post 1.0.7 upgrade guide. modified: pyproject.toml - Fix to licensing file reference.	2026-04-09 13:58:55 +02:00
Sven Luthi	d56a8f9140	modified: README.md	2026-04-08 20:32:00 +02:00
Sven Luthi	c32161b8a2	modified: netbox_dns_bridge/catalog_zone_manager.py modified: netbox_dns_bridge/dns_server.py modified: netbox_dns_bridge/management/commands/dns-export-zone.py modified: netbox_dns_bridge/management/commands/dns-export-zones.py modified: netbox_dns_bridge/management/commands/dns-settings.py modified: netbox_dns_bridge/management/commands/dns-transfer-endpoint.py modified: netbox_dns_bridge/migrations/0001_initial.py modified: netbox_dns_bridge/models.py modified: netbox_dns_bridge/request_handler.py modified: netbox_dns_bridge/signals.py modified: netbox_dns_bridge/utils.py Black code formating corrected	2026-04-08 20:14:38 +02:00
Sven Luthi	165a0faa67	modified: docs/architecture-overview.drawio modified: docs/architecture-overview.svg	2026-04-08 20:09:46 +02:00
Sven Luthi	5a20737ba9	modified: README.md	2026-04-08 20:09:46 +02:00
sven	f713719543	modified: pyproject.toml Fix paths after restructuring renamed: netbox_dns_bridge/management/commands/export-dns-zone.py -> netbox_dns_bridge/management/commands/dns-export-zone.py renamed: netbox_dns_bridge/management/commands/export-all-dns-zones.py -> netbox_dns_bridge/management/commands/dns-export-zones.py Unify command naming scheme new file: netbox_dns_bridge/migrations/0001_initial.py Adds the missing migration. Since the plugin was renamed this is also an opportunity to merge all changes into a single migration. renamed: netbox_dns_bridge/service/transfer/catalog_zone_manager.py -> netbox_dns_bridge/catalog_zone_manager.py renamed: netbox_dns_bridge/service/transfer/dns_server.py -> netbox_dns_bridge/dns_server.py new file: netbox_dns_bridge/management/commands/dns-settings.py modified: netbox_dns_bridge/management/commands/dns-transfer-endpoint.py renamed: netbox_dns_bridge/service/transfer/request_handler.py -> netbox_dns_bridge/request_handler.py deleted: netbox_dns_bridge/service/transfer/__init__.py Another restructure to simplify code re-use. New command dns-settings added to allow setting of catalog zone serial. This will be needed to migrate from previous versions.	2026-04-08 20:09:13 +02:00
sven	5f48472ba4	modified: README.md	2026-04-08 18:58:49 +02:00
sven	79ae6c2068	modified: README.md modified: netbox_dns_bridge/__init__.py modified: CHANGELOG.md Change versioning scheme to mach netbox-plugin-dns	2026-04-08 18:58:37 +02:00
Sven Luthi	756c491e28	Renaming Project and changing license	2026-04-08 10:24:24 +02:00
sven	4a1930a896	new file: CHANGELOG.md modified: README.md	2026-03-02 18:44:50 +01:00
Sven Luthi	5040ce70a0	modified: README.md modified: pyproject.toml deleted: requirements.txt	2026-02-18 16:59:37 +01:00
Sven Luthi	4d3b01127b	Bump to v1.0.7	2026-02-18 15:51:55 +01:00
Sven Luethi	997f36264a	modified: src/netbox_plugin_bind_provisioner/__init__.py Bumping version to v1.0.6	2026-02-09 16:54:17 +01:00
Sven Luethi	19a946c880	- Split bind transfer command into multiple files for better code readability. - Rename bind-transfer-endpoint command -> dns-transfer-endpoint.	2026-02-05 12:27:28 +01:00
Sven Luethi	9afdfe869b	- Store catz member zone identifiers in database, linked to the corresponding zone object. - Catz member identifiers are created from uuid encoded in base32, lower-cased, and padding removed. - On endpoint startup, make sure all zones have a catz identifier assigned. If not, create them. - Use signals to create or update a zone's catz identifier.	2026-02-05 12:26:55 +01:00
Sven Luethi	1fae3bfe54	Adds back the changes made to support ipv6 in commit `8fba131230` but that were reverted with commit `ca51a6054d` to allow proper merging of another complex PR. Closes #11 again Also includes a small bug fix that was added with commit `6bbb2e9905` but that was also temporarily reverted with `45f9631a98`.	2026-01-31 09:43:19 +01:00
Sven Luethi	562f54d481	Merge pull request #12 from spamik/support-tcp-soa Support SOA request on TCP by merging the dns handling while leaving the transport handling in protocol specific handlers (partially). Further review pending	2026-01-31 09:08:42 +01:00
Sven Luethi	ca51a6054d	This reverts commit `8fba131230`.	2026-01-31 09:01:04 +01:00
Sven Luethi	45f9631a98	This reverts commit `6bbb2e9905`.	2026-01-31 09:00:44 +01:00
spm	0d041a0830	Handle more DNS requests via one TCP connection	2026-01-29 15:58:32 +01:00
Sven Luethi	6bbb2e9905	modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Catches a further exception if the wrong algorithm is specified for the tsig key used.	2026-01-29 11:11:49 +01:00
Sven Luethi	8fba131230	modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Fixes issue #11 (IPv6 support)	2026-01-29 11:10:31 +01:00
spm	a9dbbe8c88	Support SOA request on TCP - unified handling of DNS queries on TCP and UDP channels - as a result it now responds on SOA requests over TCP	2026-01-28 17:35:58 +01:00
Sven Luethi	9a2b0a2c2b	modified: src/netbox_plugin_bind_provisioner/__init__.py Bump version to v1.0.5	2026-01-09 14:46:09 +01:00
Sven Luethi	55d891f38c	modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Slight changes to previous commit: 1. Stop converting the zone ID to string for catalog zone PTR record creation and simply use its int type. 2. Extend padding of ID in catalog zone PTR record from 6 digits to 9. Auto-incrementing of zone IDs may create larger IDs then expected if the turn-over of zones is high. Precautionary measure. 3. Fix catalog zone SOA record creation - A slight mistake was introduced in previous commit that would render the set the MNAME field to "invalid.zones.catz." rather than the intended "invalid." value. 4. Run code through black formater to stay compliant.	2026-01-09 13:36:08 +01:00
Sven Luethi	1375bbb7e3	Merge pull request #9 from jpmens/ttl_mname Use TTL=0, alter MNAME,RNAME and rename PTR owners	2026-01-09 13:19:44 +01:00
Jan-Piet Mens	723566db70	Use TTL=0, alter MNAME,RNAME and rename PTR owners I've opted for a slightly shorter name for PTR owner names The result looks like this: ``` catz. 0 IN SOA invalid. invalid. 23 60 10 1209600 0 zid-000002.zones.catz. 0 IN PTR 2.0.192.in-addr.arpa. zid-000001.zones.catz. 0 IN PTR example.net. zid-000003.zones.catz. 0 IN PTR jpmens.net. zid-000004.zones.catz. 0 IN PTR tcp53.ch. catz. 0 IN NS invalid. version.catz. 0 IN TXT "2" ```	2026-01-09 08:53:59 +01:00
Sven Luethi	e8450c90da	modified: README.md modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Remove code and description that imported old catz serials from flat files that were used before switch to DB model. Code and docs no longer applicable so removed.	2026-01-09 02:59:36 +01:00
Sven Luethi	ae6bb3c1b6	modified: README.md	2026-01-09 02:50:58 +01:00
Sven Luthi	0028ba8d80	new file: src/netbox_plugin_bind_provisioner/migrations/0002_alter_integerkeyvaluesetting_options_and_more.py modified: src/netbox_plugin_bind_provisioner/models.py Remove the settings model from Netbox's Permission system as these values are for internal use of the plugin only.	2025-12-18 15:53:38 +01:00
Sven Luthi	78ed040495	modified: README.md Update readme	2025-12-18 15:03:10 +01:00
Sven Luthi	20064ec9bd	modified: src/netbox_plugin_bind_provisioner/__init__.py new file: src/netbox_plugin_bind_provisioner/management/commands/export-all-dns-zones.py new file: src/netbox_plugin_bind_provisioner/management/commands/export-dns-zone.py new file: src/netbox_plugin_bind_provisioner/utils.py Adds export commands for zones to bind zone files and bump version to v1.0.4	2025-12-11 15:59:21 +01:00
Sven Luethi	6ac1548eef	modified: src/netbox_plugin_bind_provisioner/__init__.py modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Improve TXT record formating.	2025-12-01 19:22:11 +01:00
Sven Luethi	d8f4b83c2a	modified: src/netbox_plugin_bind_provisioner/__init__.py modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Allows for TXT records to be added without quotation. This will apply the correct quoting and chunking where needed.	2025-11-29 13:36:18 +01:00
Sven Luethi	fa032b1ea3	modified: src/netbox_plugin_bind_provisioner/__init__.py modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Fixes bug: TXT records were truncated instead of chunked when larger then 255 characters and on semicolons.	2025-11-28 18:52:00 +01:00
Sven Luethi	e6aaa3a54d	modified: src/netbox_plugin_bind_provisioner/__init__.py modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py modified: src/netbox_plugin_bind_provisioner/migrations/0001_initial.py modified: src/netbox_plugin_bind_provisioner/models.py Run code through black formater and bump version string to v1.0.0	2025-11-27 11:26:35 +01:00
Sven Luethi	eee5395ea6	modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Fixes custom properties in catalog zone, adding dnssec policy as group property instead (as spcified in RFC9432)	2025-11-27 11:25:30 +01:00
Sven Luethi	a9c59f4c57	modified: .gitignore Ingore build/ dir modified: src/netbox_plugin_bind_provisioner/__init__.py Set version v0.9.9 modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Fix bug where an exception occurse if a view has no zones. Feature added - Fixes #5	2025-11-26 22:49:37 +01:00
Sven Luthi	787c3d0a20	modified: README.md new file: docs/install-systemd-service.md Fixes #3	2025-11-25 10:00:31 +01:00
Sven Luethi	57195a822b	modified: .github/workflows/python-publish.yml	2025-11-25 01:25:42 +01:00
Sven Luethi	0590caeebd	modified: src/netbox_plugin_bind_provisioner/__init__.py Update version string	2025-11-25 00:13:06 +01:00
Sven Luethi	962be7a048	modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py Fixes broken dns responses to UDP endpoint (denyRequest function replaced)	2025-11-25 00:03:36 +01:00
Sven Luethi	204a946a84	modified: README.md Removes the warning for step 4 from the installation guide. The warning said not to run migrations as the plugin did not have its own models. Since v0.9.6 it does so this was forgotten to be removed.	2025-11-24 13:51:42 +01:00
Sven Luethi	d72dc5a115	modified: .github/workflows/python-publish.yml	2025-11-23 16:45:46 +01:00
Sven Luethi	b659268117	modified: .github/workflows/python-publish.yml Update flow	2025-11-23 16:43:27 +01:00
Sven Luethi	8c4bc91f6e	modified: .gitignore	2025-11-23 15:56:23 +01:00
Sven Luethi	c8e28d2397	modified: README.md modified: src/netbox_plugin_bind_provisioner/__init__.py modified: src/netbox_plugin_bind_provisioner/management/commands/bind-transfer-endpoint.py new file: src/netbox_plugin_bind_provisioner/migrations/0001_initial.py new file: src/netbox_plugin_bind_provisioner/migrations/__init__.py new file: src/netbox_plugin_bind_provisioner/models.py Adds a database model to track the catalog zone serial instead of tracking it inside a flat file.	2025-11-23 15:56:06 +01:00
Sven Luethi	0349204aff	modified: README.md In the previous commit Matt Kollross pointed out a naming error where the plugin settings were referenced as 'netbox_bind_provisioner' instead of the correct name 'netbox_plugin_bind_provisioner'. His commit missed the second instance of the same mistake further down in the README however. This fixes that one too.	2025-11-18 20:51:37 +01:00
SL	e4dbd7b014	Merge pull request #2 from kollross/main Updated REAME.md with corrected info	2025-11-18 20:35:41 +01:00
Matt Kollross	07f8387963	Merge pull request #1 from kollross/kollross-patch-1 Change plugin key from netbox_bind_provisioner to netbox_plugin_bind_…	2025-11-18 10:26:30 -06:00
Matt Kollross	d8acd3f525	Change plugin key from netbox_bind_provisioner to netbox_plugin_bind_provisioner The PLUGIN_CONFIG needs to reference the correct name of the plugin "netbox_plugin_bind_provisioner" not "netbox_bind_provisioner"	2025-11-18 10:25:55 -06:00
Sven Luethi	8c1e9502f4	modified: README.md	2025-11-17 22:44:06 +01:00
Sven Luthi	86457cc858	modified: README.md Add catalog zone serial counter info.	2025-11-12 13:52:13 +01:00
SL	0bad0e31df	Update requirements.txt Adds dnspython as dependency instead of relying indirectly on netbox-plugin-dns to require it.	2025-10-30 11:30:52 +01:00