Use this script in a cron to update a given A record in your DNS zone, using OVH API.
First in order to retrieve needed dependencies and initialize the informations for OVH API requests, run:
make install
You will be prompted to configure the OVH API application and the consumer key to use (see https://github.com/denouche/ovh-api-bash-client for more informations)
To retrieve dependencies only, run:
make
Just add a new crontab to run this script using the right subdomain and domain, for example:
* * * * * /home/denouche/crontabs/ovh-dyndns/ovh-dyndns.sh --domain mydomain.com --subdomain home
This crontab will check every minute that the following record targets the right IP address :
home.mydomain.com. 60 IN A 1.2.3.4
If the target IP address is incorrect, it will update the value, changing the target IP by the current IP (retrieved on http://ipecho.net/)
If the A record is not found, it will be created.