IIS 6 FTP Port Change

I would like to change the port of my FTP server from 21 to say 9550.

When I do, in command line when attempting to FTP it allows me to
authenticate but won't show any folders in a "dir" command. In IE using
:9550 it appears to authenticate then gives me "500 Invalid Port Command". I
would appreciate any suggestions on how to change the port. I did open port
9550 on my firewall and closed 21, and changed the port setting in FTP
Manager from 21 to 9550.

vbnetdev wrote on Wed, 26 Apr 2006 07:57:32 -0500:

> I would like to change the port of my FTP server from 21 to say 9550.
>
> When I do, in command line when attempting to FTP it allows me to
> authenticate but won't show any folders in a "dir" command. In IE using
> :9550 it appears to authenticate then gives me "500 Invalid Port Command".
> I would appreciate any suggestions on how to change the port. I did open
> port 9550 on my firewall and closed 21, and changed the port setting in
> FTP Manager from 21 to 9550.
>

FTP uses more than one port. The standard uses 20 and 21 - one for the
commands, one for the data. I'm guessing that you still need port 20 open.
PORT mode (the default) assumes port 20 is going to be used, after the
initial connection on the port you've defined.

I don't use IIS FTP, so I don't know how you'd change the other port number.
Check the documentation.

Dan