RE: OT (sort of): Setting up an OWA server in a DMZ
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Fri, 22 Apr 2005 07:01:14 -0500
Hi Adrian,
Are you using an ISA firewall? If so, the entire step by step details
are in the ISA/Exchange Deployment Kit at
http://www.microsoft.com/isaserver/techinfo/guidance/2004/configuration.
asp
HTH,
Tom
www.isaserver.org/shinder
Tom and Deb Shinder's Configuring ISA Server 2004
http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
-----Original Message-----
From: adrian bolzan [mailto:abolzan@xxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Thursday, April 21, 2005 10:04 PM
To: [ExchangeList]
Subject: [exchangelist] OT (sort of): Setting up an OWA server in a DMZ
http://www.MSExchange.org/
Hi,
This is sort of off-topic as I am stuck at setp 1 of building an OWA
server.
I am trying to configure a new server to act as an OWA server. It is
located in our DMZ.
We do not use ISA server...
IP address of 'OWA' server = 192.168.2.2
IP address of Exchange server, which is also a DC = 192.168.1.5
The way our firewall works is to set an alias on the DMZ interface, and
use IP address and Port forwarding.
The alias on the DMZ interface = 192.168.2.5.
Thus, communications from the 'OWA' server to the exchange server is
sent to 192.168.2.5, with IP address and port forwarding to 192.168.1.5
:
'OWA' server --> IP Alias on DMZ interface --> DC (with Exchange)
192.168.2.2 --> 192.168.2.5 --> 192.168.1.5
My first problem is that when I try to join the OWA server to the domain
across the firewall I receive an error stating that I am trying to
connect to a closed port (presumably on the exchange DC). All of the
appropriate filters are in place on the firewall to allow the
communication. The closed port is 138/UDP. This suggests that I need
to configure the DC to allow connections from the DMZ subnet.
Any pointers on where I would find info on how to allow this
communication would be appreciated.
Cheers,
Adrian
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