open outgoing ports

  • Thread starter Thread starter esenthiel
  • Start date Start date
E

esenthiel

Are there any programs/methods I can use to find the open outgoing
ports (ie, ports I can access from a computer) ? The program needs to
be usable w/o an installation. I'm using Windows XP. Thanks.
 
No matter if it's installed or not, a firewall will detect a port scan. If
you need to test for a specific port, you could set up a computer outside
the firewall with a web or telnet server listening on the port you're
checking for. Then from a web browser just enter:

http://ip-address:port
or
telnet ip-address port

Word of warning. Since "The program needs to be usable w/o an installation",
I'd guess you don't have administrative rights to install software, which
probaly means it's a company computer. Port scanning is easy to detect and
trace back to the computer it came from. Firewalls log that sort of thing
and set off alarms when a specified criteria is met. Better read your
computer usage agreement and prepare to get your walking papers if you get
caught!

....kurt

If the port is open to outgoing traffic, you should connect.
 
It's public computers on a school network, there's punishment involved
in using computers to view illicit materials, and installation of
software, not using proxies. All I want to do is setup a proxy on my
home computer than i can access from my school computer, problem is,
only port 80 and 21 are open (that I know of) - and my ISP blocks
incoming port 80 connections, so I need to setup a proxy on a different
port.
 
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