Brad Rutkowski writes --"I've been seeing a lot of churn internally and externally about installing a role on a server core machine and then trying to connect to it remotely only to find that the remote server core machine won't allow you to connect."
Remote Management: To allow remote management of a server core machine run this locally on the box:
C:\>netsh advfirewall set currentprofile settings remotemanagement enable
After which point the firewall should allow all your remote admin tools to connect (computer management and DNS snap-in for example).
WMI: If you're looking for WMI to be open on your servers:
C:\>netsh advfirewall firewall set rule group="windows management instrumentation (wmi)" new enable=yes
Updated 4 rule(s).
Device Manager: You can enable a read-only view of device manager remotely by doing the following:
1) On the server core machine enable remote management (see above).
2) On a full server open gpedit.msc and connect to the server core machine.
3) Go to: Computer Configuration\Administrative Templates\System\Device Installation
4) Enable the following policy: Allow remote access to the PnP interface.
5) Reboot the Server Core machine.
6) Now you should be able to access the device manager snap-in remotely from a full server.
Commands for a lot of different situations: Want to know how to add.remove devices locally on a server core machien via the command line and every other command you'd ever need? See this.
Microsoft, Windows Server 2008, WS 2008, Longhorn, Windows Longhorn Server, Server Core, Tips and Tricks