Need a port listen simulator

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I am behind a firewall at work (as every is) that not only blocks
incoming requests, but also blocks outgoing request that are not
commonly used ports. I need to find out what ports are available
outgoing but that information is not officially published.

I was wondering if anyone knows of an application that I could install
on my computer at home and have it answer *ALL* port requests so I know
which ones made it out and which ones didn't. Anyone know if something
like that exists?
 
You could setup a software filewall on your home machine and tell it to log
all connection attempts from your work ip. An old version (2.0.15) of Tiny
Personal Firewall would work quite nicely.
Louis
 
Beware doing a portscan as your network administrator or any Itrution Detection System (IDS) might detect it and take it for a virus.
I talk of own experience as our network segment was shut down when one of our own developed program was configured with wrong IP and tried to connect to a outside host on just 10 ports over and over.

I suggest you test the commonly used ports (NNTP, SMTP, HTTP, HTTPS, 8080, etc.). Probably other ports (if any) are open only to specific destinations.
/David

ps. I myself use port 119 (NNTP) to run VNC from work to my home computer.
 
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