which port is bound to which application?

[sarath.chitta]

Hi ,

When i m running some applications, i am getting error like,
Bind error "Address already in use".

How can we know a port is bound to which application?

is there any command to know this information.

plz help me,
Thanx,
Chittu.

[sendilnath]

Did u write any socket programming ? If so you can check using the command netstat and check if the port is already in use. Else pls specify what kind of application makes this error.

[sarath.chitta]

hi,

just write a java program which connects create a server socket.
and execute 2 instances of this program in same machine , u ll definitely get this error , while executing one of the program.

Using netstat we can only get which ports are reserved( connected to remote port), But i want some application which tells me this port is using by this application.

Thanx,
Chittu.

[framp]

Hi ,

When i m running some applications, i am getting error like,
Bind error "Address already in use".

How can we know a port is bound to which application?

is there any command to know this information.

plz help me,
Thanx,
Chittu.

Try lsof -i as root

[mitto]

Hi,

Try this

nmap -v -sS -O 192.168.2.1
netstat -plant | grep LIST

Thanks,