RE: Using the firewall client to webproxy access upstream ISA server
- From: "Quillman Shawn (RBNA/CSA1) *" <Shawn.Quillman@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 9 Aug 2004 11:16:31 -0500
I assume this is what you have, given the fact that pointing IE to the
upstream server is actually letting them through:
Internal ISA 1----
| DMZ
| |
Internal ISA 2------ ISAx --|-- ISAy -- Internet
|
|
Internal ISA 3----
If so, create a client address set on ISAx to only allow incoming
requests from the Internal ISAs.
-Shawn
-----Original Message-----
From: Andy Greenhalgh [mailto:andy.greenhalgh@xxxxxxxxxxxxxxxxxxx]
Sent: Monday, August 09, 2004 12:52 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Using the firewall client to webproxy access upstream
ISA server
http://www.ISAserver.org
We have a back to back ISA server DMZ configuration. We run 3 internal
ISA servers for 3 separate internal networks, Corporate, Education, and
Public Library. The DMZ has a single connection to the internet.
Each internal network has different content filtering requirements so
the content filtering is installed on each internal ISA server.
Some of our more technically able users are bypassing the content
filtering by configuring Internet Explorer to use the uptstream ISA
server IP address and using the firewall client to reach the upstream
ISA server.
Is there a configuration which can prevent this? Our users will still
need to access some content using the firewall client.
Andy Greenhalgh
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