[Zope] FTP and firewall

Bobb rawbobb at hotmail.com
Sun Feb 22 16:26:38 EST 2004

add my 2c, it may not mean anything but what the heck,...
pix 501 has session / connection problems with (at least) win9x and mac
clients and servers.
I had problems with http, ftp and smb.  The problems were experienced with
inside clients
connecting to outside (internet) resources, and it seems like your problem
are the other
way around, but I'd thought I'd mention it.   Maybe a google on 501 problems
may help you.

I had mine switched out for a 506 for this reason.
(longshot, but what the heck), good luck.


----- Original Message -----
From: "Robert Jean" <robertjean2 at yahoo.com>
To: <zope at zope.org>
Sent: Sunday, February 22, 2004 1:05 PM
Subject: [Zope] FTP and firewall

> Hello,
> For users on the internal network, the Zope 2.6 FTP
> server works fine. However, we wish to expand the
> application to distributed clients over the internet.
> The hardware used is a CISCO PIX 501 firewall. The
> current settings are as follows:
> access-list outside-in permit tcp any host <WAN IP
> ADDRESS> eq 8021
> static (inside,outside) <WAN IP ADDRESS> xxx.xxx.x.xxx
> netmask 0 0
> The problem is, I suspect as per the FTP protocol, the
> client decides the local socket of the data channel
> (not very good for firewall support). However, I have
> been successful with other standard FTP servers using
> similar treatment. Is there a resolution to this
> issue?
> Thank you,
> Robert
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