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 dependency, run:

    make

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)

Just add a new crontab to run this script using the right subdomain and domain, for example:

    * * * * * cd /home/denouche/crontabs/ovhDynDNS/ && ./ovhDyndns.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/)