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Lost AD CS CA server - now what?

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Last Modified: 2013-12-04
Hi all,

A few weeks ago, I lost a domain controller in my network.  Of course, it was a hard fail and I had no good backups.  I thought I had finally recovered when I found that it must have been a CA, as there are certificates that had been issued by it on my domain controllers.  I found this article and was working through it - http://support.microsoft.com/kb/889250.  At one point it says to run "certutil - TCAinfo" and that is reporting the CA as a server that has been gone for nearly two years!  I need to get a CA back up as I am trying to install Lync 2013, but I am a little stuck.  What are the implications of installing a new CA now?  I tried to export a certificate following instructions in another TechNet article, but it says the PK is marked as not exportable, so it will not let me create a .pfx file.  Also, I saw that I should not install the CA on a Domain Controller, is that correct?  All servers are 2008R2.  Any thoughts or suggestions are greatly appreciated!

-Don
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MaheshArchitect
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OK.  Just to clarify.  When I install the new CA, do I make it a root CA and/or Enterprise CA?  Keep in mind that I now don't actually have any CA at all in my domain, although the settings are still in AD from the servers that are now gone.  Do I need to do some sort of cleanup on those old settings?
Architect
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Thank you!  I was hoping it would be this easy... :)  It has been a rough couple of weeks!

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