Hello,
I am a new IT Manager at this company and need assistance big time. Their environment looks as follows:
Server 1. Domain Controller Server (Windows Server 2008 R2 Standard) running active directory.
Server 2. Email Server (Windows Server 2008 R2 Standard) running Exchange Server 2010 .
* Note. No back ups to work with aside from whats mentioned below.
DC had a virus infection causing a lot of issues on the shared network drives 2 days ago locking up all the files with a crypto ransom virus. Running Avast suppressed the infection. Had to recover the file shares which luckily had a back up.
The issue is that the Exchange Server 2 post this lost connectivity with the AD Server 1. Exchange Server 2 when launching EMC could not launch the console stating the following:
"No Exchange servers are available in any Active Directory sites. You can’t connect to remotePowershell on a computer that only has the Management Tools role installed."Shortly after I found that it is possible the EMC launcher was corrupt and needed to be reinstalled following another blog post. I deleted the exchange management console.msc per instructions only to discover I couldnt relaunch it because there was
no way how. So I copied another msc file that happened to be on the DC Server 1 back to Exchange Server 2 and got it to launch again.
Another post said that it might be an issue with the Domain Account for the Computer, so to delete it in the AD Server 1 only to find that rejoining it from Exchange Server 2 using Computer>Properties> Chage Settings > Change is greyed out because
it is using the Certificate Authority Service.
I tried manually re-adding the computer in AD and modeling permissions after another server in group settings but no go. After this I was unable to login to the Exchange Server 2 with domain accounts but only local admin, receiving the following Alert:
"The Trust Relationship between this workstation and primary domain failed."
I tried running the Power Shell tools on Exchange Server 2 to rejoing and to reset passwords for domain accounts as noted in some other blogs but no luck as the Server 2 could not make the connection with Server1 or other errors it kept spitting out.
I also during the investigation found the DNS settings were all altered on both the Server 1 and Server 2 which I luckily was able to change back to original because of inventorying it in the beginning when I started.
I need help figuring out if I need to rejoin the Exchange Server 2 manually by disabling the Certificate Authority Service (or removing the CA as listed here:
https://social.technet.microsoft.com/Forums/exchange/en-US/fb23deab-0a12-410d-946c-517d5aea7fae/windows-server-2008-r2-with-certificate-authority-service-to-rejoin-domain?forum=winserversecurity
and getting exchange server to launch again. (Mind you I am relatively fresh to server managing) Please help E-Mail has been down for a whole day now!
Marty