Build a lab CA to generate certificates for SCOM agents

I had to test adding a gateway to SCOM that was in a workgroup. I installed a CA on my DC so I could generate certs to install on the mgmt server and gateway. I used these articles to do it.

To make the DC an enterprise root CA follow this:
https://gallery.technet.microsoft.com/Installing-the-Root-CA-db1c6200

You'll get an error when you hit the certsrv website coz you need to add a cert to the IIS website first. This article helped with that:

https://social.technet.microsoft.com/wiki/contents/articles/12039.active-directory-certificate-services-ad-cs-error-in-order-to-complete-certificate-enrollment-the-web-site-for-the-ca-must-be-configured-to-use-https-authentication.aspx

You should see event id 20053 (source= OpsMgr Connector) in Ops log to say "The OpsMgr Connector has loaded the specified authentication certificate successfully."

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