Category Archives: Active Directory

How secure channel determine the Domain controller in cross-forest

How client computer/member server find the logon Domain Controller from Cress Fores in an Active Directory envirnment or How secure channel determine the Domain controller in cross-forest

If you are worked on troubleshooting the authentication issues between forests, you might be used NLTEST tool to check the secure channel Domain controller, did you ever try … [Continue reading]

AD Slow Authentication and prompting for credentials again and again

AD Slow Authentication and prompting for credentials again and again (Active directory Troubleshooting – Part 2)
It’s a most common issue in a complicated Active Directory environment, before am going to discuss about the authentication issues, I would like to discuss about the Active Directory basics like Pass through authentication, AD secure channel, NTLM and Kerberos

Active directory Troubleshooting (Part1 – Diagnostics Logging)

How do I find what is accessing my LDAP Server and what LDAP query used and how many queries for a period of time?
Troubleshooting Active Directory issues like authentication failures, performance issues and logon issues, we can use different methods to monitor the AD, I will discuss more about enabling diagnostics logging, adding related counters on performance monitor to … [Continue reading]

Unable to kill process

If you try to kill the process from task manager, it failed with Access Denied error, I have used schedule task to run the batch file (batch file uses the repadmin command) schedule task failed with could not start, because the repadmin command stuck in task manager

I have used task manager to end the repadmin process, and used taskkill [Continue reading]

Active Directory Features in Windows Server 2012

Active Directory 2012 features on Windows Server 2012 and R2: I am going to discuss about Windows Server 2012 Active Directory feature, as per my understanding newer version has not have many new features however Microsoft has improved the features of Active Directory 2008 in Active Directory 2012 List of improvement compare to the earlier version Active Directory 2008, also … [Continue reading]