Dynamic DNS Update script for EdgeRouter Lite

ddnsupdate

#!/bin/bash

# Author: Hans Guthrie
# Date: 11/5/2016
# Purpose: Updates dynamic dns (ddns) on eth0.
#    This is needed because our current ddns supplier, noip, expires your hostname after 28 days of inactivity.
#    Surprisingly there's no better way to accomplish this than to use a cron job.
#    Takes advantage of the operational command wrapper that is documented here:
#      https://help.ubnt.com/hc/en-us/articles/204976164-EdgeMAX-How-to-run-operational-mode-command-from-scripts-


# Load the operational command environment variables
run=/opt/vyatta/bin/vyatta-op-cmd-wrapper

# Update the ddns on eth0
$run update dns dynamic interface eth0