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Cross forest Service Availability - 22.Aug.2008 5:57:58 PM

DKDT

Posts: 8
Joined: 16.Apr.2008
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Hi,

I have read the articles and everything with that, but it still confuses me.

I have to forests, untrusted, and want to share free/busy information organization wide for both. What do I need to make this work?

As I understand, a service account in both forests has to be configured. User A in forest A, requests free/busy information for User B in forest B, then the Availability service in forest A would use the configured service account, and access the information in Forest B?

Any help would be appreciated.

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RE: Cross forest Service Availability - 22.Aug.2008 6:19:02 PM

Elan Shudnow

Posts: 575
Joined: 4.Jan.2007
From: Chicago, IL
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Have you read the following?
http://technet.microsoft.com/en-us/library/bb125182.aspx

It talks about configuring the Availability Service in both a trusted and an untrusted cross-forest setup.

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(in reply to DKDT)

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RE: Cross forest Service Availability - 25.Aug.2008 12:15:10 PM

DKDT

Posts: 8
Joined: 16.Apr.2008
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Thank you for your response.

I have read the article, and it is talking about MIIS 2003. When should that be used? I am trying to avoid using that or any other product except for using Exchange 2007 and Outlook 2007.

(in reply to Elan Shudnow)

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RE: Cross forest Service Availability - 25.Aug.2008 12:23:03 PM

Elan Shudnow

Posts: 575
Joined: 4.Jan.2007
From: Chicago, IL
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That part is a little confusing and MS should have added a note that those pieces aren't needed for the Availability piece. It's more of a general statement that they "should" be used in a cross-forest Exchange Topology. The MIIS piece (should be using ILM FP1 anways for update-recipient support) would only be used for GalSync if you needed a common GAL.

For your piece where both environments are Exchange 2007 and what you are trying to accomplish is cross-forest Availability where all your clients are Outlook 2007, then you can configure the Availability Service for cross-forest functionality. If you also have Outlook 2003 clients, you also want to use the inter-org replication tool to populate public folder information. If you also want a common GAL, use GALSnc.

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http://www.shudnow.net

(in reply to DKDT)

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RE: Cross forest Service Availability - 27.Aug.2008 2:20:44 PM

DKDT

Posts: 8
Joined: 16.Apr.2008
Status: offline

Another question, same idea...

How would you have to configure the environment to get users in two untrusted forests to be able to see and interact with each others calendars?

What would be need or what would have to be configured.

(in reply to Elan Shudnow)

Post #: 5