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Old 06-28-2003, 07:19 PM   #1
watashiwaotaku7
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Registered: Oct 2002
Location: wisconsin -- The Badger state
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probing open ports


im sitting behind a linksys single port router, is there some sort fo utility which will probe and tell me which ports i have open as well as any other amount of info that can be returned?
 
Old 06-28-2003, 07:33 PM   #2
trickykid
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You can always use nmap.
 
Old 06-28-2003, 07:59 PM   #3
2damncommon
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I use one of the free online port scanners.
I like this one, but there are others.
 
Old 06-28-2003, 08:10 PM   #4
ksoma
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Location: Austin,TX most of the year...in Euless,TX the rest of it
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"FTP Server Open = 421 Service not available." This is the message I got when I did the port scan on the link above....Does this mean that I need to open port 21 or that I have config problems?...or maybe it can mean either/or? Thanks.

-Keerthan
 
Old 06-28-2003, 08:13 PM   #5
ksoma
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Ok, never mind..I used nmap..and it says the port is open.
 
Old 06-28-2003, 08:22 PM   #6
2damncommon
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The port scan should match what you know about your system.
If you are running an FTP server, that port should be open.
If you are running an HTTP server, that port should be open.
Etc...
Otherwise they should be closed.
(Generally, speaking....)
 
  


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