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Old 12-01-2005, 11:24 PM   #1
Registered: Sep 2005
Location: California
Distribution: Slackware & Debian
Posts: 264

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Talking Reverse Firewall Port Scan


I am looking for a way to test what ports are open outbound from my computer. I am looking for any way, be it a website, an application or anything, because i am suspecting earthlink to be blocking out my outbound 443. I know it sounds odd, but on experts-exchange , this has happened before...

Thanks for your help and support
Old 12-02-2005, 06:10 AM   #2
Registered: Apr 2005
Location: chained to my console.
Distribution: LFS 6.1
Posts: 143

Rep: Reputation: 18
well, the rather infamous grc website will check your incoming port state, and if you want to check outgoing, have someone listen on 443 and telnet over to it, see what happens.

if you just want a list of whats holding ports open, try: netstat

i would give a more complete explanation, but im half dead from fatigue.
Old 12-02-2005, 08:52 AM   #3
Registered: Jul 2003
Distribution: Solaris 8/9, gentoo
Posts: 41

Rep: Reputation: 15
Use tcptraceroute to test 443 outbound to a site.


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