Re: [hylafax-users] Hylafax through firewall

["Jay R. Ashworth" <jra@baylink.com>]

On Fri, Nov 16, 2001 at 03:28:00PM -0600, Daniel Piche wrote:
> I have an appserver and a hylafax server, each behind a different firewall.
> I am sending a fax request from an appserver to the hylafax server.  I have
> mapped PORT 4559 to the hylafax server.
> 
> I believe the hylafax server is getting the request (though I don't know how
> to check).  However, when hylafax tries to establish the data connection
> back to the appserver in order to get the fax data, I think the firewall on
> the appserver end is blocking the connection.  I have read that hylafax
> sends a random port for the connection.  How do I get this to work?

HylaFAX works like FTP, in *non-passive* mode; the server has to
connect back to the client, on a client-specified port.  If your
firewalls will permit, I'd suggest that a VPN tunnel would be the
easiest to implement solution.  If not, you might be able to specify
4559 to the firewalls as an FTP control port, and they might get it
right; I believe the channel command syntax is identical.

Cheers,
- jra
-- 
Jay R. Ashworth                                                jra@baylink.com
Member of the Technical Staff     Baylink                             RFC 2100
The Suncoast Freenet         The Things I Think
Tampa Bay, Florida        http://baylink.pitas.com             +1 727 804 5015

   "If you don't have a dream; how're you gonna have a dream come true?"
     -- Captain Sensible, The Damned (from South Pacific's "Happy Talk")


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