WE're using Squid on OpenBSD to reverse proxy/SSL accelerate.

What specific functionality is required from MS for this to work? Its
working fine in Exchange 5.5 OWA and I'm working on rolling E2k3 now.

Only thing I can think of is the ability to change passwords over that
connection.

--------------------------------------------------------------
Roger D. Seielstad - MTS MCSE MS-MVP
Sr. Systems Administrator
Inovis Inc.
 

> -----Original Message-----
> From: Ken Cornetet [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, April 29, 2004 9:54 AM
> To: Exchange Discussions
> Subject: RE: OWA 2003 - Questions
> 
> You could simply port-forward port 443 to your front-end server on the
> local network, and configure the OWA site to use SSL. Some would
> consider this OK, others would consider it insecure.
> 
> Microsoft recommends (at least when we were looking at this last year)
> using a stand-alone ISA server in a DMZ to do reverse-proxy to the FE
> server.
> 
> At least one person on the list uses Squid on BSD (or maybe 
> linux) to do
> the reverse-proxy.
> 
> We use a Network Appliance NetCache to do the reverse proxy and SSL
> acceleration (the SSL stuff is handled by the NetCache) Note 
> that using
> an SSL accelerator for OWA (at least in E2K) requires a 
> special OWA DLL
> from Microsoft.
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, April 28, 2004 7:57 PM
> To: Exchange Discussions
> Subject: RE: OWA 2003 - Questions
> 
> 
> Thanks for all of the input.
> But I have to ask, if putting the OWA front-end in the DMZ is a bad
> idea, what would you recommend instead? Just forwarding ports 
> to the FE
> server on the local network or other (sorry, I'm a bit of a 
> n00b when it
> comes to network security.. and by a bit, i mean a lot).
> 
> Is there any online documentation that details alternatives to putting
> the FE in DMZ?
> 
> Thanks again for all of your help,
> 
> Luke
> 
> 
> -----Original Message-----
> 
> That's putting it politely.  I think it's a lousy idea.
> 
> Ed Crowley MCSE+Internet MVP
> Freelance E-Mail Philosopher
> Protecting the world from PSTs and Bricked Backups!T
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Fyodorov, Andrey FTL
> Sent: Tuesday, April 27, 2004 6:34 AM
> To: Exchange Discussions
> Subject: RE: OWA 2003 - Questions
> 
> We have recently had a lot of discussions regarding the Exchange
> front-end placement in a DMZ and I think most people agreed that it
> would not be the greatest idea.
> 
> To make an Exchange server a front-end, yes just check the 
> "this server
> is a front-end" box. Also I used to follow Microsoft's 
> Exchange Hosting
> whitepapers on FE/BE configuration and created additional HTTP virtual
> servers on the back-end that would represent the front-end servers.
> 
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Monday, April 26, 2004 7:43 PM
> To: Exchange Discussions
> Subject: OWA 2003 - Questions
> 
> 
> Hi,
> Just a couple of questions in relation to OWA 2003.
> 
> We are in the process of migrating a network from exch. 5.5 
> to 2003. We
> have an 2003 and 5.5 server running in the same site, AD connector
> installed, etc..
> 
> 1. To setup an OWA2003 server (as a front end only, with no mailbox
> storage) on the network to put in a DMZ, do we simply install Exchange
> 2003 with only the OWA components selected, then use the 
> Exchange Admin
> to set that server as a 'front end server'? (in addition to having the
> right ports, etc.. setup on the firewall for traffic communication
> between the OWA and 2003 servers).
> 
> 2. Since the site contains a 5.5 and 2003 server, will the OWA2003
> server be able to provide access to 5.5 mailboxes? The 
> impression I get
> from reading the web suggests that it wont.
> 
> If you have any links to specific articles with detail on how this
> should be setup, they would be great as well..
> 
> Thanks,
> Luke Cassar
> 
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