FTP server will not initiate DATA connection back to client

User LAFFER1 laffer1 at adsl-68-76-19-75.dsl.klmzmi.ameritech.net
Thu Jul 1 06:32:47 PDT 2004


Does it work with ipfw disabled?  If so, then it seems resonable that ipfw 
is causing the problem.  One of the ftp modes (pasv or port) requires high 
level ports to be accessible on the server.  I just started drinking 
coffee this moring, so i can't remember which one yet. :)

If i remember right, the default ftpd is influenced by hosts.allow and 
hosts.deny too.

On Thu, 1 Jul 2004 freebsd at stateautomation.com wrote:

>
> I am running FreeBSD 4.9 RELEASE running the standard ftpd.  I can act as an
> ftp client from the console OK, however when I try to ftp from a client PC
> to the server running ftpd (which is running ipfw) the ftp server receives
> the packet sent to port 21 and replies however it will not initiate a DATA
> connection back to the client from port 20.  I had my client configured to
> use ACTIVE FTP.  I have also tried PASSIVE without any difference.  I do not
> have a firewall on the client and can successfully FTP to another FreeBSD
> box.
> None of the rules on my firewall that deny packets coming back from the ftp
> servers ipfw firewall are being hit. Does anyone have any ideas?
> Regards, J.S
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