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From: Ulrich Roth (Roth_at_impact.de)
Date: Wed Sep 04 2002 - 08:28:53 CDT
> we would install a PROFTPD Server in a DMZ behind our Firewall.
> We have installed a WEB-Server in the DMZ and a Mail-Server
> in the internal Network. Both of them works very well.
> If we access the FTP-Server via WEB we see the login message and the
> ftp-prompt. A pwd and cd runs perfect.
> If we do a "dir" or "ls" we see the line "220 Port Command
> successfull" and nothing goes on. The same comes from internal net.
> Which port have to be opened, that we can access the ftp-Server?
ftp uses port 21 for the commands and port 20 for the data. If you
say "ls" or "dir", the output sent to your terminal is already data.
-- Ulrich Roth IMPACT Business & Technology Consulting GmbH Im Mediapark 8 / KölnTurm D-50670 Koeln Phone +49-221-93 70 80-29 Fax +49-221-93 70 80-15 E-Mail: rothimpact.de
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