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Re: nmap showing port 21 (ftp) open, but port is actually closed
From: Luke Eckley <luke () xifos org>
Date: Sun, 11 Sep 2005 10:53:28 -0700

Mike Jones wrote:
Has anyone ever seen this before, nmap is showing port 21 to be open on
a machine on the internet, but 21 is not listening on that machine.  It
happens to all machines I scan outside the local area network.

Does your LAN proxy all outgoing FTP connections?


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