Dynamic DNS in Linux (Debian)

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I used to use DuckDNS, but then I started using afraid.org.

I just moved and it was nice knowing that my server would just update the new IP/location for me.

In a script like ~/duckdns/duck.sh:

sleep 21 ; wget -O - http://freedns.afraid.org/dynamic/update.php?YORTOKEN >> /tmp/freedns_someodd_mooo_com.log 2>&1 &

Something like the above command, that you get from Afraid.org.

You can crontab:

*/5 * * * * ~/duckdns/duck.sh >/dev/null 2>&1

You could also use systemd. Above does every five minutes.