iis ftp: Is there any way to configure my FTP server (IIS 6.0, W2003, behind RRAS
Basic Firewall) to allow both passive and active connections? What I am
looking for is user access regardless of IE settings.

Thanks,

Amanda

[quoted text, click to view]

To answer your question pedantically, not there isn't any way to configure
your FTP server to allow both passive and active connections, because it's
already set up to do so, and can't be configured not to.

You may need to configure firewalls or NAT routers in between your client
and server.

The first thing to make sure of is that your FTP server is bound to port
21 - if it isn't, NATs aren't going to bother translating the FTP traffic,
and you won't get the configuration to work in one or both modes when a NAT
is involved.

Next, you'll need to find out exactly what is, and what isn't, working. Try
connecting from the command-line FTP client supplied in Windows - it gives
more information, particularly if you turn on debugging, with the "-d" flag
when you run ftp, or with the "debug" command at the "ftp>" prompt. This
FTP client only uses active mode data transfers, so it will tell you whether
the client-side NAT is doing its translation correctly. If this doesn't
work, then the NAT at the client needs to be updated to work correctly for
active mode, or the user needs to use a client that can switch into passive
mode.

Similarly, if you are unable to get passive mode to work (sadly, the
command-line FTP client doesn't support passive mode, so you will need a
third-party tool to debug passive mode), you will need to update the NAT at
the server.

What exactly isn't working right now? Active, passive, or both? What
happens when you try each method?

Alun.
~~~~
--
Software Design Engineer, Internet Information Server (FTP)
This posting is provided "AS IS" with no warranties, and confers no rights.