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RPC over HTTPS in a single standalone exchange server that is not neither a GC/DC.

I'm trying to setup an RPC over HTTPS on our stand alone exchange server.  It's not a GC or DC, its only an exchange server.
Exchange 2003 Enterprise SP2

-installed rpc over http proxy
-in ESM, selected RPC-HTTP back-end server
-configured RPC virtual directory in IIS, cleared anonymous, require SSL, 128 bit encryption. (for the default website, purchased third party CA certificate which is trusted)
-configured the exchange server registry to use the following ports:
 mail:6001-6002;mail.domain.com:6001-6002;mail:6004;mail.domain.com:6004
-outlook configured to use exchange proxy (Use this URL...:mail.domain.com, Connect using SSL only, Mutually authentiate..., Principal name for proxy server:msstd:mail.domain.com) with basic authentication.

Howerver, I'm unable to get this to work.
Does this scenario require any work on a GC (modifying the registry on GC for ncacn_http:6004)?  We don't manage the GC since it's done by another dept so if it does require a change, it'd be a pain.

Thanks.
 

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Sembee
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ucsdprovost

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So need to actually modify the registry as below on the GC DC?

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters
Create a new entry of type REG_MULTI_SZ
Name: NSPI Interface protocol sequences
Value: ncacn_http:6004

That looks like it.
If you have more than one GC/DC then you can make the change on both and reference both in the registry changes on the Exchange server.

Simon.
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I just got it to work.  I must've missed something when I first did it.
I didn't need to do anything on GC though.
Probably it was setup with the necessary changes already.

Thanks.