Yeah i didn’t try with dynamic adresses. Most of my services are behind a ngnix so I make most socket point to there. I usually go by IP, that an old work habit. Should try some news things. I played with it with DNS but my DNS name were for a whole “PC” (that was a raspberry pi zero) it work well even when i put a nginx on raspberry zero and services on pi4 I still had to have fixed port and resolvable DNS name. I should try to automate DNS, maintaining an nginx up to date is some time a pain.