Tag Archives: DNS

Resolving Windows Server DirectAccess Network Location Server DNS Scavenging Issue.

Posted on October 5, 2016 by jbernec

A few weeks after deploying DirectAccess in my infrastructure environment, I encountered an issue where DirectAccess stopped working . My first step was to check the Operational Status of DirectAccess in the Remote Access Management console of the DirectAccess server. … Continue reading →

Posted in DirectAccess | Tagged , , , , | Leave a comment

Using NTDSUTIL Metada Cleanup to Remove a Failed/Offline Domain Controller Object.

Posted on January 27, 2014 by jbernec

In this post, I would like to talk about using the ntdsutil utility for metadata cleanup. A domain controller failure ‘DC00’ recently occurred in my lab. Running the repadmin /replsum command confirmed a replication error and showed DC00 as unavailable: … Continue reading →

Posted in Active Directory, Active Directory Domain Services, AD Forest, DCPromo, Domain Controller, DSRM, Flexible Single Master Operations, FSMO, NTDSUtil, Windows Server 2008 R2, Windows Server 2008 R2 Backup, Windows Server 2012, Windows Server 2012 R2 | Tagged , , , , , , | 15 Comments

Deploying a Windows Server 2012 R2 Domain Controller in an existing Win2003 Functional Level Domain.

Posted on December 30, 2013 by jbernec

My first task before deploying a Windows Server 2012 R2 Domain Controller in a Windows Server 2003 forest functional level environment was to run the Test-ADDSDomainControllerInstallation cmdlet and determine my domain environment’s readiness to accept the new Windows Server 2012 … Continue reading →

Posted in Active Directory, Active Directory Domain Services, AD Forest, DCPromo, Domain Controller, DSRM, Flexible Single Master Operations, FSMO, NTDSUtil, PowerShell, PowerShell 3.0, Powershell 4.0, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2 | Tagged , , , , , , , , , , , | 1 Comment

Resolving Windows Server 2012 Failover Cluster Kerberos Security Issue – Invalid DNS Error

Posted on December 10, 2013 by jbernec

I’ve been running Windows Server 2012 Failover Cluster for about a year and it’s been stable up until now. Recently, I encountered an issue where Live migration of VMs failed across all hosts in the cluster. In addition, the Failover … Continue reading →

Posted in Failover Cluster, Failover Cluster Manager, Hyper-v, Hyper-v 2012 R2, Windows Server 2012, Windows Server 2012 R2 | Tagged , , , , | 6 Comments