From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gary Metcalf <gtm@lou-telecom.net>
Subject: ftp
Date: Wed, 30 Jul 2003 16:30:39 -0400
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I set my INPUT tables to DROP all tcp entries. Before that line I put in 
some ports to ACCEPT such as port 80 for http. This works as I had a 
friend run nmap to my ip and it came back with all blocked except for 
port 80. He could also get my Web page via a browser. I Have one problem 
still. When I try to ftp out to a site, and I don't have any entries in 
OUTPUT, I can get loged in but if I enter any command such as 'ls' or 
'?' I get the message back that 200 PORT command successfull but I never 
see the list of files or commands. It's like my commands go out but any 
messages returned are blocked. I can't even execute a 'bye' command and 
get out. What port do I need opened up to use ftp from my computer to 
another.
  I tried ports 20, 21, 25,69 and 115 but they did no good. I found 
these in the /etc/services file.
Gary