Frontend - Backend Exchange and 2 ISA Server

  • From: "Guido Neubecker" <guido.neubecker@xxxxxxxxxxxxx>
  • To: isalist@xxxxxxxxxxxxx
  • Date: Mon, 11 Nov 2002 05:09:13 -0700

Hello everybody,
i have two Exchenge Server in a frontend backend konfiguration.
The frontend is in the DMZ and is published over the external Adapter on
an ISA Server. The backend is in the corporate Net. The ISA Server has
tree Adapters(Internet, DMZ, corporate Net) but now i want to use a second
Server for a "back-to-back" DMZ.
What do i have to do that the communication between the two Exchange
Servers is still working???

Configuration?:

ISA 1:
Internet: 213.218.100.2
DMZ: 10.1.1.1

Frontend:
DMZ: 10.1.1.3

ISA 2:
DMZ: 10.1.1.2
corp. Net: 10.1.2.1

Backend:
corp. Net: 10.1.2.35

When i have to publish the backend Server then i have to give him an
IP-Adress from the DMZ but then my frontend doesn't find him anymore
because on the frontend is a DNS Server running with the Zone of the
internal Net.
Is it posible to make a 2'nd host entry for the backend with the
publishing Adress?

Thanks for help,
Guido Neubecker
 


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