command to inentify the process that is listening in a port.

[Jonathan McKeown]

On Monday 09 April 2007 17:37, Martin Hudec wrote:
> Siju George wrote:
> > How Do you actually Identify what process is listening on a TCP/IP port?
> > "nmap" does not usually give the right answer.
> > There should be some command that can be run on the local host for
> > identification right?
>
> man lsof
>
> 5:35pm [amber] ~# lsof -i @localhost:123
> COMMAND PID USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
> ntpd    552 root   10u  IPv4 0xc4c46000      0t0  UDP localhost:ntp

Just out of interest, why do so many people recommend lsof, which is a port, 
when sockstat/fstat are in the base system and seem to cover the same ground? 
Am I missing something about lsof?

Jonathan