My friends cant join my server

[rezahs]

Hello,

my Friends cant join my own server. I can join and configurate it but they cant join. I think it has something to do with the port forwarding or something else. does anyone have any idea what i can do ?

[Resxt]

Your port forwarding or firewall stuff is wrong/not applied etc

[rezahs]

ok i did it, i just forgot to open a port

[Paranoid937]

Resxt im not sure what could be wrong though. what is it supposed to be?