[PLUG] Inability to download through firewall machine, but can browse

["Gregson Helledy" <gregsonh@gra-inc.com>]

I have installed Mandrake Single Network Firewall 7.2 on a machine which
acts as a dialup gateway for two other machines.  SNF uses kernel 2.2.19,
diald to automatically dial the ISP, and has some configuration options
available through a web-based interface.

After a lot of time spent learning and configuring, web browsing and even
ICQ work fine.  However, I seem to have trouble downloading files.  This
occurs with http transfers initiated from the browser, and also from an ftp
client.  (A gnutella client works fine, though.)  This is proving
frustrating for me to solve because documentation discusses ports and
protocols, but doesn't explain the difference between an http web page view
and an http file transfer.  The most annoying thing is that I seem to be
able to download from some sites without problem, from others I can
eventually succeed if I re-initiate the transfer many times, and with some I
have no luck at all.

For example, I can download this .pdf file from my employer's web page
without problem:
http://www.gra-inc.com/Airlines.PDF

While if I want do download a windows bzflag client, either the transfer
never starts, or I get approx 1K of data and the download stalls:
http://prdownloads.sourceforge.net/bzflag/bzflag17e2.exe


I don't know whether this is related, but I've installed samba on the
firewall machine with the hope of using it for file and printer sharing.
When I sit at the firewall machine to use swat:

lynx http://localhost:901

I initially get an "access denied" message from lynx, but then I wait a few
seconds, the issue resolves itself, and I'm looking at the swat page.  My
gut tells me that this may be related, but I'm not sure what terms to search
for in the samba docs.

Has anyone run into something like this?

Thanks,

Greg


Privileged/Confidential information may be contained in this message.
If you are not the addressee indicated in this message (or responsible
for delivery of the message to such person), you may not copy or deliver
this message to anyone.  In such case, you should destroy this message
and notify GRA, Inc. (gramail@gra-inc.com) immediately.  Please advise
immediately if you or your employer do not consent to Internet e-mail
for messages of this kind.  Opinions, conclusions and other information
expressed in this message are not given or endorsed by GRA, Inc. unless
otherwise indicated by an authorized representative independent of this
message.



______________________________________________________________________
Philadelphia Linux Users Group       -      http://www.phillylinux.org
Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce
General Discussion  -  http://lists.phillylinux.org/mail/listinfo/plug