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I'm trying to configure remote access to WMI across a number of servers, however the boxes that are just running Server Core are giving me a headache.

Notionally, in order to do this we need to run dcomcnfg and set permissions through that tool for Remote Activiation etc. Server Core, being GUI-less, doesn't have dcomcnfg let alone MMC more generally.

Running dcomcnfg from a full machine and then adding the server core box for remote administration doesn't give me a "DCOM Config" entry in the tree - I only have "COM+ Applications" and "Distributed Transaction Coordinator" for the remote server.

I've done a few searches, and either can't find the right magical incantation for Google, or what I'm doing is something rarely done.

How are we meant to configure DCOM on a Server Core box?

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  • You should be able to configure remote WMI access using group policy, no? Jul 17, 2015 at 15:08
  • Yes, but I'd like to know how to fiddle with it on a single computer as well. GPO will work, but when it comes to testing configuration out on a single server, GPO can add an extra level of complexity.
    – Callie J
    Jul 29, 2015 at 8:06
  • Did you discover a way to configure DCOM?
    – Ashley
    Oct 24, 2017 at 15:27

1 Answer 1

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The WMI service runs automatically by default, so all you need to do is add a firewall exception to allow access:

netsh advfirewall firewall set rule group="windows management instrumentation (wmi)" new enable=yes

Or use group policy.

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  • Firewall is off on this box, so that's not an issue.
    – Callie J
    Jul 29, 2015 at 10:01
  • 1
    and question was about DCOM, not about WMI
    – avs099
    Sep 20, 2018 at 19:55

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