A small, even minimalistic, yet simple and posix compliant shell script to update IP addresses on Gandi.net using the LiveDNS API of Gandi. The script only needs curl and find command. With a working sendmail command, the script sends a notification mail on errors.

First, copy gandi-update.sample to /etc/default/gandi-update and set correct variables (RECORD for the resource record to update, DOMAIN for the main domain and APIKEY for the api key). Then place the script under /usr/local/bin and run it as a cronjob or as systemd timer.

Enter following line to run the script every five minutes as a cronjob:

*/5 * * * * /usr/local/bin/gandi-update

Or copy gandi-update.service and gandi-update.timer to /etc/systemd/system/ and activate the timer with:

systemctl enable --now gandi-update.timer