How do I find my server's IP address?

[Beratu77]

We will play with my friend via direct connect (on my server)

[icanttellyou]

3 hours ago, Beratu77 said:

We will play with my friend via direct connect (on my server)

I recommend against doing this. Using direct connect requires disabling authentication which means anyone can impersonate as any player. Instead what you can do is copy the link provided and send it to your friends. They can join using the link in 2 ways. One being by simply clicking and using the web client. Second being by pasting the URL in the "classicube.net/server/play/..." box (see attached image) and clicking connect.

 

Otherwise you can make the server publicly listed and enable a whitelist instead.