or download this
[root@station34 Socket]# netstat -anp | grep 4500
tcp 0 0 192.168.0.34:4500 0.0.0.0:*
+ LISTEN 22948/nco_objserv
...
tcp 0 0 192.168.0.34:4500 192.168.0.34:32997
+ ESTABLISHED 22948/nco_objserv
tcp 0 0 192.168.0.34:4500 192.168.0.34:32996
+ ESTABLISHED 22948/nco_objserv
unix 2 [ ACC ] STREAM LISTENING 4500 1934/gpm
+ /dev/gpmctl