It is my understanding that certain firewalls (for instance, the Janus, I
believe) will actively track outbound FTP connections, and will only allow in
*corresponding* inbound FTP connections above port 1024. This doesn't help
much if you don't have that particular firewall product, but it's at least one
option. Generally, though, it's my understanding that it is a fairly standard
procedure to allow inbound connections over port 1024. But I may be wrong.
To: firewalls @ GreatCircle.COM @ Internet
cc: (bcc: Kenneth Smith)
From: jharvey @ netcom.com (Justin Harvey) @ Internet @ WORLDCOM
Date: 01/13/95 05:56:46 PM CST
Subject: FTP through firewall
Are most people that operate firewalls allowing ports 1024-2000 incoming
so that outbound ftp may work? If you don't do this the ftp won't
work...I've also read that you can somehow use the PASV command...do we
need to modify a source of ftp and use that if we don't want to enable
1024-2000?
Justin
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