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This post is based on existing OpsMgr product group (PG) post: Troubleshooting Ops Mgr Certificate issues with Powershell. For me existing script return overloaded information to user and is not quite easy for understanding. Also there is missing some points:

  • certificates might be issued from 3rd party Certification Authorities (CAs) and not always has SerialNumber fixed length. Therefore in some cases it incorrectly converts certificate serial number to it actual value;
  • by default X509Chain.Build() method (for Operating Systems prior Windows 7/Server 2008 R2) by default attempts to build a chain up to any root certificate that is stored in Trusted Root CAs container in CurrentUser store. This means that while original script return "Ok" status, OpsMgr Agent may not work with this certificate, because root certificate don't exist in Trusted Root CAs in LocalMachine store;

Another point is that what we want to get from script? I thing that we just want to know:

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This article describes process of obtaqining and installing a digital certificate for OpsMgr agent that is not a member of your AD forest or a trusted forest. This article assumes that your managed computer is running one of the following operating systems:

  • Windows 2000
  • Windows XP
  • Windows Vista
  • Windows 7
  • Windows 8/8.1
  • Windows 10
  • Windows 2000 Server
  • Windows Server 2003 (including R2)
  • Windows Server 2008 (including R2 and Server Core)
  • Windows Server 2012 (including R2 and Server Core)

 Target audience is OpsMgr administrators that have limited or no understanding of what certificates are and how PKI works. Described below is not the only way to achieve the same or similar goal but it implements many of PKI Best Practices.

In this article

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