Today I made a bukkit server and portforwarded it with tcp. And I can play on the server but when one of my friends tries to join the server they get this error java.net.connectException: Connection refused: no further information. Can anybody help me fix this?!
Alright so you say you port forward, but if you're connecting with an ip such like: 192.168.1.x or 10.0.0.x those kind of ip's are only to the local network. To find the correct ip to give you're friends to connect with how about seeing checkip.org it will tell you you're external ip which is what you're friends need to connect with.
