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Scan PIX for open ports

Posted on 2004-10-11
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Last Modified: 2013-11-16
Can someone please tell me if there is a way to scan a PIX firewall for open ports.  Can this be done from an external location (PC, router, etc)?  Can it be done from inside the PIX?  I'm trying to verify the commands I put into the PIX to open certain ports actually opened the ports.

Thanks!!!
mEadEman
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Question by:meade470
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5 Comments
 
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Expert Comment

by:lrmoore
ID: 12280552
From a client inside the PIX, go to http://www.grc.com
Run Shield's UP to test your protection..



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by:meade470
ID: 12281347
Wow!  Cool page!  Is there a way to scan ports above 1023?
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lrmoore earned 350 total points
ID: 12281371
At the same site, there is an option for User Specified Custom Port Probe.
Use this to specify the port range..up to 65535..

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Author Comment

by:meade470
ID: 12281623
Oh . . . duh.  I guess it helps when you look at the page.  :)

Quick question, if you don't mind:  Wouldn't you consider it normal for a PIX to respond in "stealth" mode rather than "closed."  Also, would you consider "stealth" mode to be the better choice of the two?

Thanks!!!!
mEadEman
0
 
LVL 79

Expert Comment

by:lrmoore
ID: 12281852
Been there, done that already..
http://www.experts-exchange.com/Security/Firewalls/Q_20589406.html

Yes, I would say that "stealth" is better than "closed"

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