Tag: DNS

• Resolving Windows Server DirectAccess Network Location Server DNS Scavenging Issue.

  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. The Network Location Server status was flagged as Critical as indicated in the screen shot.…

  jbernec

  October 5, 2016

  DirectAccess

  DirectAccess, DNS, Network Location Server Error, Remote Access Management, Windows Server 2012 R2

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

  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: Since a dcpromo was obviously out of the question, I used the Ntdsutil metadata cleanup…

  jbernec

  January 27, 2014

  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

  Active Directory, DNS, Domain controller, Flexible Single Master Operations, FSMO, metadata cleanup, ntdsutil

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

  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 R2 Domain Controller installation without any glitches: [ws2012r2]: PS C:\Users\admin\Documents> Test-ADDSDomainControllerInstallation -DomainName genesys.net | fl…

  jbernec

  December 30, 2013

  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

  Active Directory, Cmdlets, dcdiag, DNS, Domain controller, Flexible Single Master Operations, FSMO, Operations Master, Powershell 3.0, Schema Version, Windows PowerShell, WS2012 R2

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

  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 Cluster Manager started displaying the following error: Cluster network name resource ‘Cluster Name’ failed registration…

  jbernec

  December 10, 2013

  Failover Cluster, Failover Cluster Manager, Hyper-v, Hyper-v 2012 R2, Windows Server 2012, Windows Server 2012 R2

  DNS, Failover, Failover Cluster Manager, Virtual Machine, Windows Server 2012