[TriLUG] Connecting Ports and Servers

[Brian McCullough]

On Wed, Jul 24, 2013 at 01:48:54PM -0400, Brian Gerard wrote:
> On 7/24/13 12:31 PM, Brian McCullough wrote:
> >I am trying to determine what process is responsible for a Listening
> >Port in an AIX machine.  When I use "netstat -aon" I get a lot of
> >information, but I don't seem to see a PID.  The output looks something
> >like:
> <SNIP!>
> >
> >Any suggestions?
> >
> >Thanks,
> >Brian
> 
> Do you have 'lsof'?
> 
> sudo lsof -i TCP:<port>
> 
> ...gives output like:
> bash$ sudo lsof -i TCP:22
> COMMAND  PID    USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
> sshd    1584    root    3u  IPv4    4793      0t0  TCP *:ssh (LISTEN)
> sshd    1584    root    4u  IPv6    4795      0t0  TCP *:ssh (LISTEN)

Thank you, Brian.

Someone else pointed me at lsof, too.  I have always used it for
filesystems, not ports.  Interesting.


Brian