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Virtual Server 2005 Authentication Problem 
 


Added: 11/29/2005, Hits: 4,977, Rating: 0, Comments: 0, Votes: 0
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When I tried to remote control a Virtual Machine from the Virtual Server 2005 administration website, on 3 out of 4 VMs it continually prompted for authentication, then after a few attempts showed the administration display in the VMRC, not the VM.

The following errors were logged in the Virtual Server event log:

Quote :

Source: Virtual Server
Category: Remote Contol
Event: 1025

The user "Unknown" at Internet address 10.0.0.101 failed to authenticate a new connection to the VMRC server.


Followed by:

Quote :

Source: Virtual Server
Category: Remote Contol
Event: 1024

The user "TESTNETWORK\administrator" at Internet address 10.0.0.101 established a new connection to the VMRC server using NTLM authentication. The administration display is currently displayed.


The issue it appears is the DCOM launch permissions.

  1. From the Run command open DCOMCnfg

  2. Browse to the properties of Component Services | My Computer | DCOM Config | Virtual Server

  3. Click on the Security tab and select Edit under the Launch permissions (should have the Customize radio button selected). My server had Everyone set to Deny!

  4. I removed the Everyone group and added the Authenicated Users group, giving the group Allow Lauch permission.

After restarting the Virtual Server service, all remote control was working correctly.





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