Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Greg Taylor — Sat, 05 Mar 2011 04:28:43 GMT

Hi Eric, I'm sorry, I don't know, I would suggest reaching out to the Lync team to get their input.

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Eric — Thu, 03 Mar 2011 21:06:26 GMT

Hi Greg, I'm curious about companies who will have OCS 2007 R2 and Lync running side by side. Would that basically fall into scenario 3 or is there a way to have both IM servers enabled?

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Gp230014 — Tue, 22 Feb 2011 21:02:14 GMT

Great post

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Fredrik — Wed, 09 Feb 2011 13:19:49 GMT

Great article!
But when testing this for a customer we ran into a problem related to the DNS hotfix (2386184) and the new 'skipassource' flag. When using this flag on a IP-address it won't show up in IIS Manager when trying to create the new web site. If we add the IP-address without this flag (ie not set, or set to false) we can see the IP in IIS Manager.
We'll continue to test with static DNS entries instead of this flag...

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Greg Taylor — Sun, 23 Jan 2011 22:27:28 GMT

@Kit - we don't recommend you configure it to use host headers. As the article says, we recommend you use two IP addresses and two web sites. Your solution would not be supported at the current time.

@Markus - it's impossible to say what a future roll-up may or may not do, though they should not break this if we do our bit right, though as with all roll-ups and service packs, it's always very good practise to test it yourself first in a test lab before deploying to production, just in case you have something unusual configured. So try and keep a virtual lab copy of what you have in production, so you can quickly and easily test (and rollback if needed) any updates you want to apply.

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Markus — Tue, 18 Jan 2011 19:05:08 GMT

Hi Greg

just created in the test environment an additional vdir for Reverse-Proxy-Autentication. How will a Rollup or SP upgrade inpact the additional vdirs? Are they correctly upgraded as well or are manual steps involved? Because one creates a new webapp...

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Kit — Tue, 18 Jan 2011 18:52:53 GMT

Hi Greg & Will, my scenario falls into #3, and I've a requirement for the new IIS website to be configured for IWA and the InternalURL in the alternate site populated in order for Proxy of the new IIS website to work. Is this a supported MS configuration? Also the recommendation is to use two IPs, however are using IIS host headers a supported configuration (two websites sharing the same IP address). Thanks.

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Greg Taylor — Tue, 18 Jan 2011 08:43:25 GMT

Hi Carlos, it wouldn't typically apply as a hardware load balancer is not delegating credentials to the CAS, nor doing Forms Based Auth.

There's also no need to put AutoDiscover or EWS on any second web site, and in fact EWS may not work if you do so anyway. Leave those on the default web site.

re: Configuring Multiple OWA/ECP Virtual Directories on Exchange 2010 Client Access Server

Carlos Tronco — Tue, 18 Jan 2011 01:56:51 GMT

Do these recommendations still hold in the scenario 1 when using hardware load-balancers? In that scenario should the EWS and Autodiscover vdirs also exist on the new secondary FBA IIS site or....?