Getting Port on which client is listning from the client program.

rasanth · 10-26-2004, 06:10 AM

All,
After the client connects to the server, is there any way by which I can know , on which port the client is recieving(on the client side) data from the server?
Thanks in Advance,
Rasanth

acid_kewpie · 10-26-2004, 07:10 AM

use a tool like ntop or ethereal to listen to the traffic

Hko · 10-26-2004, 11:23 AM

Code:

netstat -plant | sed -n 's/[^:]*:\([0-9]*\) .*firefox.*/\1/p'

I used "firefox" here to test. Replace "firefox" in the above example with the program name on the client you want the port number of.

I find "netstat -plant" an useful command for finding info on TCP connections (and easy to remember).