To find which program use a port, for example 8080, you can use netstat or fuser command. ufser fuser command is part of psmisc package. On CentOS, install it with To see which application is running on PORT 8080, run
You can use netstat or fuser commands to find out which program is using a port. You can find used ports with command nmap [root@server52 ~]# nmap localhost Starting Nmap 4.20 ( http://insecure.org ) at 2010-03-24 07:14 EDT Interesting ports