pubIp

Simple dynamic DNS resolver which works with Tomato and requires Python 3.

Setup in Tomato

0. In the left menu under Basic -> DDNS set "auto-refresh every" to e.g. 1 days.
1. In the Service dropdown choose: Custom URL.
2. Add URL to where you have this service running: http://YOUR_SERVER.TLD/update/YOUR_KEY/@IP.
3. Check Force next update.
4. Hit Save.
5. Verify Last IP Address and Last Result
6. Point your browser to http://YOUR_SERVER.TLD/show/YOUR_KEY to see what YOUR_KEY is bound to.
7. Or check if redirects works as intended with http://YOUR_SERVER.TLD/go/YOUR_KEY/PORT.

API

/show/:user:

Shows the current IP that is set for key :user.

/update/:user/:ip:

Updates the current IP.

:ip must match the request client address.

/go/:user/:port:

This redirects you to whatever IP that :user is set to along with :port.

Limitations

All state is in-memory. If service restarts, there will be a delay (whatever you set auto-refresh to) before Tomato updates the IP.