Silly question! Being confused with "openhab and Android" tutorial!

Hello everyone, I follow this instruction: https://github.com/openhab/openhab/wiki/Controlling-openHAB-with-Android but I found a little bit confused when it says openhab’s server name and port, as I know the default port of openhab is 8080, but what about server name? is it “my.openhab.org” or my local IP address?
I hope someone could answer my question, although it’s quite silly, thanks in advance

openHAB Url: http://<your_openhab_ip>:8080 for local access inside your LAN,

openHAB Remote URL: https://my.openhab.org
Username= your my.openhab username
Password= your my.openhab password for remote access through my.openhab org

Thanks for your quick reply.