A bash script that pushes out email alerts upon IP change. Uses cron and an external email account. Can randomize the list of servers and cycle through on failed connections.
Clone to desired location and configure the script. You'll need mailx and msmtp configured to work with a gmail account or similar setup.
Set a cron job to run the script every 5 min:
$ sudo crontab -e -u
and add:
*/5 * * * * ~/iphitch/iphitch > /dev/null 2>&1