Changing port number on openHAB 2.0

[Dim (Angelos)]

@Rar9

Which file(s) need changing ?

You don’t need to change the openHAB2 ports that are used by default (8080 for http, 8443 for https) when using a reverse proxy like nginx or apache.
The proxy is running on port 80.
The clients connect to the proxy on 80 and the proxy connects to OH2 on 8080.

Check the link on Benjy’s post on how to set up a reverse proxy:

@Benjy

It might be more beneficial to run a reverse proxy instead.

If you want to use the upcoming Google’s stuff, you need to switch openHAB2 to listen to port 80 natively (no use of proxy).
This is more difficult since:

@Benjy

Port 80 is a restricted port, you’ll need to openhab with root privileges to use it.

@Kai

Google Home does not listen to the port it is told, but always expects the hue bridge to be available on port 80 - this means that you have to configure openHAB to use port 80 instead of 8080 for the webserver (check the docs on how to do that) and for using port 80, you need to make sure to run it as root.