Python DDNS zones updater

Description

DNSPython wrapper for manipulate DNS zones configurations via dynamic updates (RFC 2136)

Installation

on all other Unix/Linux systems

Note: This Python package is not available at Cheeshop!

Use pip to install:

$ pip install https://github.com/bh/python-ddns-zones-updater/archive/master.zip

on Arch Linux

TODO: Create an AUR package

Usage

You can see the usage with:

$ python-keepass-httpd --help

The output should be look like this:

Usage:
  ddns-zones-updater [options]
  ddns-zones-updater (-h | --help)
  ddns-zones-updater --version

Options:
  --help                    Show this screen
  -v --version              Show version
  -l --loglevel LOGLEVEL    Loglevel to use [default: INFO]
  -c --config=<path>        Config file to use [default: /etc/ddns-zones-updater.cfg]

A config file looks like:

loglevel = INFO
interval = 3600

[keys]
    [[foo.bar.example.org]]
    secret = some_secret

[hosts]
    [[foo.bar.example.org]]
    name = foo
    zone = bar.example.org.
    dnsserver = example.org
    key = foo.bar.example.org

Starting the service: .. code:: bash

$ ddns-zones-updater -c ~/config.ini

It prints something like when the IP is up to date:

[INFO   ] 2015-03-08 16:32:04.718 configreader.py:20 Reading config file: /home/bh/foo.ini
[DEBUG  ] 2015-03-08 16:32:04.718 configreader.py:28 Adding key 'oc.home.pagenotfound.de'
[DEBUG  ] 2015-03-08 16:32:04.718 configreader.py:40 Adding host 'oc.home.pagenotfound.de'
[INFO   ] 2015-03-08 16:32:07.869 core.py:21 Current WAN IP is 178.0.223.200
[INFO   ] 2015-03-08 16:32:07.869 core.py:27 Updating host foo.bar.example.org
[INFO   ] 2015-03-08 16:32:07.877 host.py:37 No IP change for host foo.bar.example.org, skipping update

The following when the IP is not up to date:

[INFO   ] 2015-03-08 16:39:49.284 configreader.py:20 Reading config file: /home/bh/foo.ini
[DEBUG  ] 2015-03-08 16:39:49.284 configreader.py:28 Adding key 'foo.bar.example.org'
[DEBUG  ] 2015-03-08 16:39:49.284 configreader.py:40 Adding host 'foo.bar.example.org'
[INFO   ] 2015-03-08 16:39:52.816 core.py:21 Current WAN IP is 178.0.223.200
[INFO   ] 2015-03-08 16:39:52.816 core.py:27 Updating host foo.bar.example.org
[INFO   ] 2015-03-08 16:39:52.824 host.py:41 Setting IP (A record) to 178.0.223.200 for name foo

Check

With nslookup:

$ nslookup

> server example.org
Default server: example.org
Address: 1.1.1.1#53
> foo.bar.example.org
Server:         example.org
Address:        1.1.1.1#53

Name:   foo.bar.example.org
Address: 178.0.223.200

With dig:

$ dig @example.org foo.bar.example.org

[...]
;; QUESTION SECTION:
;foo.bar.example.org.       IN      A

;; ANSWER SECTION:
foo.bar.example.org. 3600   IN      A       178.0.223.200
[...]

Or the BIND zone config file on server:

$ cat /etc/bind/zones/bar.example.org

[...]
$ORIGIN bar.example.org.
$TTL 3600       ; 1 hour
foo                      A       178.0.223.200
[...]