IP Networking

i want to kill a tcp connection by killing its pid
with netstat -an i got the tcp ip connection on port 5914
but when i type ps -a or ps-e there is not such process running on port 5914
is it possible that because i do not log on with proper user account i can not see that process running?

You need lsof to see pids and ports, generally speaking. Some OS have network artifacts in a per proc directory subtree like /proc/$PID/, so you can find the port there through an entry name. The ps can show you the command line, but that does not have to reveal any socket ports.

i tried lsof.
i am not that much familiar with unix.
when i type lsof it gives me lots of information in command line in a way that i can not see the previous commands that i typed (is there any command like /p that bring information page by page?)
but in that given information from lsof i can not find neither the port i see the port 5914 nor its corresponding ip that i saw in netstat -a for that particular port.
is there any way too release that port?

---------- Post updated at 01:15 PM ---------- Previous update was at 01:10 PM ----------

yes excuse me i post it on related forum

I assume this to be the wrong forum.
Does your netstat provide the -p option? It will output the PID of the process, then.

one of my system ports are busy and i dont know how to kill it
in netstat -a i see that the port are being used with a given ip but in ps -e i can not find that port being used by a process.
how can i kill that process or release that port.

The lsof is most portable:

Code:

netstat -tlp |grep <port_no>
 
lsof | grep <port_no>

i tried but it didnt work it seems that the netsat tell me that such pid exist but in real there is not such a process.
here is the scenario
i connected to this server as a client and run a backup application on client.
the server use the port 5914 for this application.
withnetsat i can see that this port is in listening state and even the connection between server and client is in establishment state but there is not really anything about that pid in ps or lsof
is it really possible?