33 lines
1.3 KiB
Markdown
33 lines
1.3 KiB
Markdown
# Gandi Dynamic DNS
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Cron job to auto update a DNS record when WAN IP changes using Gandi Live DNS API on Debian GNU/Linux
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## To install
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```
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git clone https://gitlab.com/lab.8916100448256/gandi-dynamic-dns.git ./gandi-dynamic-dns
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cd ./gandi-dynamic-dns
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sudo bash ./install.sh
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```
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Then configure DNS record info and API key in file /etc/live-dns/live-dns.conf
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## How it works
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### /etc/cron.d/live-dns-update
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Cron job definition to check for WAN IP change and call Live DNS API to update the DNS record if necessary. By default runs the check/update script 2 times per hour, at every hour past 12 and 42 minutes.
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### /etc/live-dns/live-dns.conf
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Configuration file for the check/update script
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Needs to contains 3 environment variable definitions
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+ DOMAIN="domain.tld" : Replace domain.tld with your domain name
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+ RECORD="host" : Replace host with the sub domain you want to update when WAN IP changes
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+ APIKEY="Your-API-Key" : Replace with you API key generated on the Gandi web interface.
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Check this page if you don't know your APIKey : https://docs.gandi.net/en/domain_names/advanced_users/api.html
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### /usr/local/bin/live-dns-update.sh
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This the script that is called by the cron job.
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This script is based on the sample provided on Gandi GitHub : [mywanip.sh](https://github.com/Gandi/api-examples/blob/master/bash/livedns/mywanip.sh)
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