ISPConfig / NGINX proper way to change server port

[Technicavolous]

my ISP blocks port 80 so I need to use something like port 82 for a server I want to run from my house. In the ISPConfig control panel there is a setting under Sites -> Webdomain -> Options where one can change the http and https ports but that does not seem to do the trick. On one experiment I chanaged the listening ports in the nginx config but then none of the things like wordpress would run once installed.

 

So what is the 'correct' way to change the listening port for all servers on an Armbian box running ISPConfig / NGINX installed from armbian-config?

 

It works great but I break it every time I try to fix the port issue by instructions I've found elsewhere.

 

Thanks!