Some refinement; port 20 is ftp data
port 21 is ftp
port 23 is telnet
-----Original Message-----
From: Eric Richardson [mailto:[EMAIL PROTECTED]
Sent: Monday, March 12, 2001 3:31 PM
To: Daniel de los Reyes
Cc: debian-user@lists.debian.org
Subject: Re: What is Passive mode anyway?
Daniel de los Reyes wrote:
>
> Can somebody explain what Passive mode is, so maybe I can understand my
way out of this?
>
ftp is bidirectional in that you go out on one port(21) and then the
server communicates back on another port(23 I think). Passive mode means
that it it a one port operation and the server doesn't have to connect
back to the client which with a firewall is problematic.
Eric :-)
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact
[EMAIL PROTECTED]
