Minecraft start error - Cent0s - Bukkit

[Gibbo]

Hey guys, wondering if you could help me, wen i go to start my minecraft server on Cent0s I get this error!

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Thanks hope someone can help ))

 

[Exilo]

You should enter your IP in the config file
Aslo if you got more than one server, stop the other one or change the port.

 

[Gibbo]

You should enter your IP in the config file
Aslo if you got more than one server, stop the other one or change the port.

What port would you recommend?