my friend cant join to my server

[dire lotus]

UDS meaning Unturned Dedicated Server? If that's the case duh, that's the only way to host.

Sounds like a networking issue, double check your port forwarding and firewall rules

That's the firewall, still leaves port forwarding

Also those are not the actual rules but I'll take your word for it

You still didn't post your port forwarding

[graceful owl]

Or use hammachi

Instead of port forwarding

You friend needs it too

Make a network and tell your friend to join