Did that already - and double-checked.

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Knoch, James W
Sent: Wednesday, October 22, 2014 2:56 PM
To: exchange@lists.myitforum.com
Subject: [Exchange] RE: Certificate prompt after upgrading cert to SHA2

Make sure to check with your certificate provider and see if there was an 
intermediate certificate that needs to be installed as well on the servers.  
They are usually different than the previous ones if they were required before.

If it is a Digicert certificate, they provide a utility that will help check 
for it and install any missing intermediates.


-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Maglinger, Paul
Sent: Wednesday, October 22, 2014 12:49 PM
To: New Exchange List (exchange@lists.myITforum.com)
Subject: [Exchange] Certificate prompt after upgrading cert to SHA2

 Hoping for some help to understand what is going on here.
Rekeyed my SHA1 certs to SHA2 and imported them into my certificate store.  
They showed up in Exchange and I assigned IMAP, POP, IIS and SMTP to it.  So 
much for that.
Exchange 2010 SP2 UR8 - 2 sites, flat domain.
Each site has 2 CAS/HUB, 2 MB, and 1 CAS/HUB/MB.  The 2 CAS/HUB servers are 
configured as a CAA.
What I'm seeing is that SOME users that are opening Outlook 2010 in site A are 
getting a certificate error "The name of the security certificate is invalid or 
does not match the name of the site" from the CAS/HUB/MB server (ROMAIL3) in 
site A.  All things working correctly they shouldn't even see that server.

The CAS/HUB servers have 2 NICs - one of which on each is set up with Windows 
Load Balancing for the CAA (designated as LB in the name). 
DNS is set up as the attached diagram shows.  The LB IP addresses are not in 
DNS.

When the problem started showing up the event logs on HQMAIL1 were getting 
2601, 2604, and 2501 errors every 15 minutes - all having to do with the 
MSEXCHANGEADTOPOLOGY service:

2501 - The site monitor API was unable to verify the site name for this 
Exchange computer - Call=DsctxGetContext Error code=8007077f. Make sure that 
Exchange server is correctly registered on the DNS server.

2604 - When updating security for a remote procedure call (RPC) access for the 
Microsoft Exchange Active Directory Topology service, Exchange could not 
retrieve the security descriptor for Exchange server object HQMAIL1 - Error 
code=8007077f.  The Microsoft Exchange Active Directory Topology service will 
continue starting with limited permissions.

2601 - When initializing a remote procedure call (RPC) to the Microsoft 
Exchange Active Directory Topology service, Exchange could not retrieve the SID 
for account <WKGUID=1A9E54D37856378B478743286FF00932782,CN=Microsoft 
Exchange,CN=Services,CN=Configuration,...> - Error code=8007077f. 
 The Microsoft Exchange Active Directory Topology service will continue 
starting with limited permissions.  

I checked DNS and the entries for HQMAIL1 and HQMAIL2 were missing.  I re-added 
them and pushed out the changes. I then rebooted HQMAIL1 and the error went 
away in the event log - but on rebooting Outlook I still got the certificate 
pop-up.

I left to get supper and figured I'd work from home using VPN.  Coming in that 
way my Outlook didn't throw the cert error.  Going through things on HQMAIL1 I 
found that if I pinged HQMAIL1 by name from itself it returned with a 
123.100.200.31 instead of what DNS should have returned as 123.100.200.1.  
Searching I found that I could change the priority of the NICs, which I did and 
it started pinging correctly from itself.  I rebooted HQMAIL1 to clear up any 
lingering effects of the NIC priority and started getting the 2501, 2604, and 
2601 errors again.  They occurred until I restarted the MS Exchange AD Topology 
service (which restarted a boat-load of others) and then it cleared up.  

I'm still hearing from some users, not all, about getting the certificate 
pop-up.  I'm not getting it myself currently.  I'm not understanding where or 
why people are getting pointed to ROMAIL3.

Hopefully this makes sense to you guys.

-Paul






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