Re: RPC over HTTP only works with remote computers attached to the domain

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Date: Fri, 8 Oct 2004 20:43:52 -0400

Tim wrote:
> I have an interesting problem with RPC over HTTP. It works but only
> for computers that have been joined to the domain. These computers
> when connected from home without a VPN connection can use RPC over
> HTTP but if I take that same computer and remove it from the domain
> and use the exact same Outlook profile settings RPC over HTTP will
> fail.

I'm not an RPC/HTTP expert, but did you change the Exchange server service
(advanced properties) to specify "logon network security" = none? So the
user gets prompted for credentials?
>
>
>
> I have a 3 server configuration:
>
>
>
> Test-ISA-01: ISA 2000 SP2 Server
>
>
>
> Test-MSG-01: W2003 STD running Exchange 2003 SP1 (also GC,
> Enterprise Certificate Server, Windows SharePoint Services, Internet
> Authentication services)
>
>
>
> Test-DC-01: W2003 Std also acting as a GC
>
>
>
> Internal Domain Name is: Test.local
>
> External Domain Name is: Test.org
>
>
>
> I used enterprise certificate server to create a certificate that is
> installed in IIS on the Exchange 2003 server with a name of
> owa.Test.org.
>
>
>
> I have installed the certificate on the ISA server
>
>
>
> OWA works correctly with the https://owa.test.org url although a
> certificate warning comes up saying that certificate has been issue
> by a company you have not chosen to trust. If the user clicks Yes
> then they access OWA successfully.
>
>
>
> When configuring the outlook profile the Exchange server name is
> Test-MSG-01.Test.local while the proxy name is owa.test.org and the
> setting to mutually authenticate is msstd:owa.test.org.
>
>
>
> As I've mentioned these settings for RPC over HTTP work correctly for
> Outlook clients whose computers are attached to the domain but not
> with computers that are not attached to the domain. This leads me to
> believe it might be a certificate issue
>
>
>
> Any help would be appreciated. Tim

• Previous message: Lanwench [MVP - Exchange]: "Re: WINS? Outlook connectivity"
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