mirror of
https://github.com/stryan/gandi-live-dns.git
synced 2024-11-23 05:45:41 -05:00
136 lines
4.7 KiB
Markdown
136 lines
4.7 KiB
Markdown
gandi_live_dns
|
|
----
|
|
|
|
This is a simple dynamic DNS updater for the
|
|
[Gandi](https://www.gandi.net) registrar. It uses their [LiveDNS REST API](http://doc.livedns.gandi.net/) to update the zone file for a subdomain of a domain to point at the external IPv4 address of the computer it has been run from.
|
|
|
|
It has been developed on Debian 8 Jessie and tested on Debian 9 Sretch GNU/Linux using Python 2.7.
|
|
|
|
With the new v5 Website, Gandi has also launched a new REST API which makes it easier to communicate via bash/curl or python/requests.
|
|
|
|
### Goal
|
|
|
|
You want your homeserver to be always available at `dynamic_subdomain.mydomain.tld`.
|
|
|
|
### Debian Package Requirements
|
|
|
|
`apt-get update && apt-get upgrade && apt-get install unzip python-requests python-args python-simplejson`
|
|
|
|
#### API Key
|
|
First, you must apply for an API key with Gandi. Visit
|
|
https://account.gandi.net/en/ and apply for (at least) the production API
|
|
key by following their directions.
|
|
|
|
#### A DNS Record
|
|
Create the DNS A Records in the GANDI Webinterface which you want to update if your IP changes.
|
|
|
|
#### Git Clone or Download the Script
|
|
Download the Script from here as [zip](https://github.com/cavebeat/gandi_live_dns/archive/master.zip)/[tar.gz](https://github.com/cavebeat/gandi_live_dns/archive/master.tar.gz) and extract it.
|
|
|
|
or clone from git
|
|
|
|
`git clone https://github.com/cavebeat/gandi_live_dns.git`
|
|
|
|
#### Script Configuration
|
|
Then you'd need to configure the script in the src directory.
|
|
Copy `example.config.py` to `config.py`, and put it in the same directory as the script.
|
|
|
|
Edit the config file to fit your needs.
|
|
|
|
##### api_secret
|
|
Start by retrieving your API Key from the "Security" section in new [Gandi Account admin panel](https://account.gandi.net/) to be able to make authenticated requests to the API.
|
|
api_secret = '---my_secret_API_KEY----'
|
|
|
|
##### api_endpoint
|
|
Gandiv5 LiveDNS API Location
|
|
http://doc.livedns.gandi.net/#api-endpoint
|
|
|
|
```
|
|
api_endpoint = 'https://dns.beta.gandi.net/api/v5'
|
|
```
|
|
|
|
##### domain
|
|
Your domain for the subdomains to be updated
|
|
|
|
|
|
##### subdomains
|
|
All subdomains which should be updated. They get created if they do not yet exist.
|
|
|
|
```
|
|
subdomains = ["subdomain1", "subdomain2", "subdomain3"]
|
|
```
|
|
The first subdomain is used to find out the actual IP in the Zone Records.
|
|
|
|
#### Run the script
|
|
And run the script:
|
|
|
|
```
|
|
root@dyndns:~/gandi_live_dns-master/src# ./gandi_live_dns.py
|
|
Checking dynamic IP: 127.0.0.1
|
|
Checking IP from DNS Record subdomain1: 127.0.0.1
|
|
IP Address Match - no further action
|
|
```
|
|
|
|
If your IP has changed, it will be detected and the update will be triggered.
|
|
|
|
|
|
```
|
|
root@dyndns:~/gandi_live_dns-master/src# ./gandi_live_dns.py
|
|
Checking dynamic IP: 127.0.0.2
|
|
Checking IP from DNS Record subdomain1: 127.0.0.1
|
|
IP Address Mismatch - going to update the DNS Records for the subdomains with new IP 127.0.0.2
|
|
Status Code: 201 , DNS Record Created , IP updated for subdomain1
|
|
Status Code: 201 , DNS Record Created , IP updated for subdomain2
|
|
Status Code: 201 , DNS Record Created , IP updated for subdomain3
|
|
```
|
|
|
|
#### Command Line Arguments
|
|
|
|
```
|
|
root@dyndns:~/gandi_live_dns-master/src# ./gandi_live_dns.py -h
|
|
usage: gandi_live_dns.py [-h] [-f]
|
|
|
|
optional arguments:
|
|
-h, --help show this help message and exit
|
|
-f, --force force an update/create
|
|
|
|
```
|
|
|
|
The force option runs the script, even when no IP change has been detected.
|
|
It will update all subdomains and even create them if they are missing in the
|
|
Zone File/Zone UUID. This can be used if additional/new subdomains get appended to the conig file.
|
|
|
|
### IP address lookup service
|
|
There exist several providers for this case, but better is to run your own somewhere.
|
|
|
|
#### Poor Mans PHP Solution
|
|
On a LAMP Stack, place the file [index.php](https://github.com/cavebeat/gandi_live_dns/blob/master/src/example-index.php) in a directory /ip in your webroot.
|
|
|
|
```
|
|
root@laptop:~# curl https://blog.cavebeat.org/ip/
|
|
127.0.0.1
|
|
```
|
|
This should fit your personal needs and you still selfhost the whole thing.
|
|
|
|
#### IP address lookup service https://ifconfig.co
|
|
https://github.com/mpolden/ipd A simple service for looking up your IP address. This is the code that powers [https://ifconfig.co](https://ifconfig.co)
|
|
|
|
#### use external services
|
|
choose one as described in the config file.
|
|
|
|
### Cron the script
|
|
|
|
```
|
|
*/5 * * * * /root//root/gandi_live_dns-master/src/gandi_live_dns.py >/dev/null 2>&1
|
|
```
|
|
|
|
### Upcoming Features
|
|
* command line Argument for verbose mode
|
|
|
|
### Inspiration
|
|
|
|
This DynDNS updater is inspired by https://github.com/jasontbradshaw/gandi-dyndns which worked very well
|
|
with the classic DNS from Gandiv4 Website and their XML-RPC API.
|
|
|
|
Gandi has created a new API, i accidently switched to the new DNS Record System, so someone had to start a new updater.
|