Dynamic DNS


To configure Dynamic DNS, log onto your SERVFAIL account, pick a zone and open the "dynamic dns" page. Type in the subdomain name (not the FQDN) into the form. It will spit out a per-subdomain token which can be used with the endpoints described below.

Endpoints

Calling the first one will set the record to an IP that called it. Calling the second one allows you to set the IP manually.

Important: please do NOT call the endpoint more frequently than once per minute (and preferably every 5 minutes). While it doesn't cause any big problems for us, we still don't like mindless, wasteful traffic: A single device requesting the endpoint once every 10 seconds will make 8640 requests per day - do you really need this?

Confirmed-working devices

DDNS is a de-facto standard, but everyone seems to implement it going off of vibes. Here's an incomplete list of working devices:

DeviceNotesQuirks
MikroTikdoesn't have real DynDNS support, but you can use a generic HTTP requester in a Scheduler scriptSetting triggers based on interface up/down is unreliable and causes excessive traffic. - please only use the scheduler
generic FRITZ!Boxname the "password" field as "token", use whatever as user.

Quirks