Cross-platform tool to update DNS such as Gandi.net with your dynamic IP address

Related tags

Applications generic-dns-update
Overview

GDU | Generic DNS Update Build Status

A cross-platform tool to update DNS zonefiles (such as Gandi.net) when you have a dynamic public IP address.

It's a DynDNS or equivalent alternative, available for several OS and configured by command line parameters.

For developpers, it's written in Rust and can be easily extended to add new DNS providers or new ways to detect your public IP address.

Features

  • Detect your public IP address

    • By HTTP
    • By DNS lookup

  • Create or update your DNS provider zonefiles to associate to public IP address with an A or AAAA DNS record.

    • Gandi.net
    • Other providers

  • Run on several OS:

    • Linux x86_64
    • Linux ARMv6 and more, such as Raspberry PI all models, including PI2
    • Windows 32/64 bits
    • OS X

Command line usage

$ gdu --help

USAGE:
  gdu [FLAGS] [OPTIONS]

FLAGS:
    -n, --dry-run    Dry run, don't really update Gandi zone file
    -f, --force      Force new zonefile creation even if IP address isn't modified
    -h, --help       Prints help information
    -V, --version    Prints version information
    -v               Verbose mode

OPTIONS:
    -a, --apikey <apikey>              Your API key provided by Gandi
    -d, --domain <domain>              The domain name whose active zonefile will be updated, e.g. "domain.com"
    -i, --ip-provider <ip_provider>    IP address provider to use to get your own IP address.
                                       Available values for <ip-provider>:
                                        opendns       : OpenDNS
                                        -             : read IP address from stdin
                                        sfrlaboxfibre : French 'SFR Labox Fibre' subscribers
    -r, --record-name <record_name>    Name of the A record to update or create (without domain)

Installation

On Linux: Fedora, Debian, Ubuntu, Raspbian ...

GDU is available as a native package (rpm/deb) for your distribution through package.io. Go to package.io project page for installation instructions.

Then

sudo apt-get install generic-dns-update

Linux cron configuration

You can configure GDU to check hourly if your IP address as been updated with cron.

Edit as root or sudo the file /etc/cron.hourly/gdu, with the following content:

#!/bin/bash

gdu -a YOUR_GANDI_KEY -d YOUR_DOMAIN -r YOUR_RECORD -i opendns >> /var/log/gdu.log 2>&1

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Comments
  • Support dynadot api

    Support dynadot api

    Using this as a tracking/research issue to add dynadot support

    docs endpoint

    // some terrible psuedocode
let endpoint = "https://api.dynadot.com/api3.xml";
let key = "somekey";
let domain = "micro.wtf";
let main_record = "12.34.56.789";
let record_type = "aaaa";

curl!("{}?key={}&command=set_dns&domain={}&main_record_type={}&main_record={},
  endpoint, key, domain, main_record)";
    enhancement 
    opened by jedahan 3
Owner
Damien Lecan
CTO @ Space Elephant #bike #decentralized #blockchain
Damien Lecan
GitHub
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