[NTLUG:Discuss] ftp through RH5.1 masq machine

[Juliet Blosser]

On Wed, Sep 15, 1999 at 10:42:51AM -0500, Kelly Scroggins wrote:
> I've got a Red Hat 5.1 machine with masq running.  I can surf the net until
> my hearts content.
> 
> I can't use ftp from inside my LAN.  I can login to an ftp server, but I
> can't list files. I CAN "pwd" though.
> 
> I've decided the problem is with my gateway because I CAN ftp to the same
> sites from other locations, like work.
> 
> I'm puzzled because I haven't got any firewall rules set up yet (yikes!).  I
> can't get them to work.  All I have is an "ALL:ALL" entry in the
> /etc/hosts.deny file for now. Which as I stated earlier, hasn't prevented me
> from surfing the web or loging into an ftp server.
> 
> So I would think that any packets that are returning (ACK bit is set) would
> be allowed back in to my network.  And apparently does, with this
> exception.  This problem must be unrelated to the issue.
> 
> Do you know of anything I could try off hand?

Have you tried using paPaASV mode in you r ftp client?  We have
a similar setup and can ftp properly only using pasv mode.