02-06-2012, 04:21 AM
Try checking that the ports are not used by other programs:
>netstat -p -a --numeric-ports |more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:25565 *:* LISTEN 509/./MCServer
tcp 0 0 *:8080 *:* LISTEN 509/./MCServer
>netstat -p -a --numeric-ports |more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:25565 *:* LISTEN 509/./MCServer
tcp 0 0 *:8080 *:* LISTEN 509/./MCServer