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Exchange 2007 To 2010 Migration-Certificate Question

Hello Experts:

We are in the process of migrating from Exchange 2007 to 2010. The two Exchange servers will need to co-exist for a few weeks while the migration is completed. We have a SAN cerificate from GoDaddy on the old server that has a limit of 5 names that is due to expire in a month. I have purchased a new certificate from GoDaddy that goes up to 10 names and has all the names that are included in the old certificate plus legacy.domain.com.

My question is in regards to installing the new certificate. Should I first install it on the Exchange 2010 server and then export and install it on the Exchange 2007 or vice-versa? I know that I will need to revoke the old certicate once the new one is installed. Additionally, will their be any impact on clients who connect to the server via RPC/HTTP or OWA?

Thank you!
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ctsuhako
Asked:
ctsuhako
1 Solution
 
Jamie McKillopIT ManagerCommented:
Hello,

It doesn't matter which server you install the cert on first. Since the cert contains the hostnames you have been using all along, it should work as expected once you activate it. There will be some slight downtime as you transition your client connection endpoint from Exchange 2007 to Exchange 2010. The following article is a good guide on the transition process - http://blogs.technet.com/b/exchange/archive/2009/11/20/3408856.aspx

-JJ
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ctsuhakoAuthor Commented:
Thanks, JJ. Exactly what I was looking for.
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