Re: OWA in DMZ - HowTo

On Mon, 20 Jun 2005 13:50:01 +0200, Stefano Rivoli
<9afd9fd2-1512655832@xxxxxxxxxxxxxx> wrote:

>I'm planning the deployment of the new messaging system in our company. The
>Exchange 2003 ENT will reside in LAN. Many users need to access their
>mailboxes using POP, IMAP and HTTP (OWA). In DMZ we have 2 W2K ADV (NLB).
>The best solution would be installing OWA on the W2K servers in DMZ and
>opening 2 ports needed for outside users to download mail via POP or IMAP.
>But installing OWA on a stand-alone server (which does not have Exch) seems
>to be impossible. So AFAIK the only solution is: install EXCH 2003
>Front-end on both W2K ADV servers in DMZ.
>The questions are:
>- Is it confirmed that OWA cannot be installed on a stand-alone server?
>- If installing front-end servers is the only solution, will I need 3
>server licenses (2 for each front-end + 1 for the back-end server)?
>- Considering this last configuration, may I install STD version of Exch on
>front-end and ENT on back-end?
>
>Thank you for any suggestions.

An FE in a DMZ is not a recommended configuration, albeit a supported
one.
As you have found out, unlike 5.5 you need a full install of Exchange
2000/2003 in order to run OWA.
Far better from what you describe would be an ISA in a DMZ publishing
to an FE within the network
.

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