Let Active Directory Manage It Please

Time Synchronization for Virtual Domain Controllers running on either Hyper-V or VMware Virtualization Platforms should be managed by Active Directory.


There are several reasons as to why we should let Active Directory manage Time Sync for Virtual Domain Controllers, but first we need to look at the applications running inside a Virtual Machine.


Please read here: https://www.simple-talk.com/blogs/2013/03/12/let-active-directory-manage-it-please/

Active Directory Naming Information Could Not Be Located Because

Sometimes when you open an Active Directory tool, you might get hit with the “Active Directory Naming Information Could Not Be Located” error message. The error does not provide more information as to what “Naming Information” the tool is referring to. And also, there’s nothing in the event logs to let you know more about the error so you can troubleshoot the issue. What you may not know is, there is a process which active directory tools or utility have to follow to contact a domain controller to get the naming information for an active directory domain. I’ll explain this process in this blog post.


Please read here : https://www.simple-talk.com/blogs/2013/04/29/active-directory-naming-information-could-not-be-located-because/

Hyper-V Migration Technologies

It is difficult for an architect or an organization to select the right Hyper-V high-availability or migration technology to deploy in the production environment. There are so many choices. In addition to the Hyper-V high-availability & migration technologies that were introduced in Windows Server 2008 RTM and R2, the new Hyper-V Version 3.0 running on Windows Server 2012 Operating System comes with a bunch of new migration technologies. These technologies not only provide the high-availability of virtual machines running on a Hyper-V environment but also help reduce the IT cost. An example of one of these new technologies is the ‘Shared-Nothing Live Migration’ technology, introduced in Windows Server 2012. Not only can you migrate live virtual machines without downtime but without the additional cost of shared storage devices since they aren’t required for this. Similarly, using ‘Hyper-V Replica’ of Windows Server 2012 allows you to configure a disaster recovery scenario without having to configure the ‘Windows Failover Clustering’ service!


Read more here : https://www.simple-talk.com/sysadmin/virtualization/hyper-v-migration-technologies/

Hyper-V Networking and Configuration Part III

A configuration of  Hyper-V networking across two or more Hyper-V Hosts is  the most complex type. It  needs to be configured according to the business rules and communication between Virtual Machines and the Hyper-V Parent Partition is best configured with VMBUS and VSP/VSC components. Nirmal explains how best to do it


The article goes live here:


http://www.simple-talk.com/sysadmin/virtualization/microsoft-hyper-v-networking-and-configuration—part-iii/


Enojy reading!

Hyper-V Networking and VLAN Configuration Scenario

I have written the 2nd part of the Hyper-V Networking and Configuration.


The big difference that we see between Scenario 1 and Scenario 2 is the communication to the External LAN (e.g. VM1 through VM3 talking to Server1 through Server3 on LAN). The moment you see the requirement for External communication you’ll think of using an External Virtual Switch.


To achieve the requirements of this second scenario, you can use any of the configuration methods as discussed earlier but the most suitable methods to use are:


  • Using another Physical NIC Method (applies when External networking is configured).
  • Using Hyper-V Virtual Switch and VLAN Tagging Method.

And the scenario looks like below:



More explained at http://www.simple-talk.com/sysadmin/virtualization/microsoft-hyper-v-networking-and-configuration—part-2/


Nirmal.

The SysAdmin Handbook – The Best of SimpleTalk

Over the past two years, Simple-Talk has published articles on a variety of SysAdmin topics, from Exchange to Virtualization, and including everything from Powershell to Unified Messaging. They have brought the best of these articles together to form The SysAdmin Handbook. With over fifty articles packed into this book, it will be an essential reference for any Systems Administrator, whether you have years of experience or are just starting out.


Articles included in the Handbook:


  • Message Hygiene in Exchange Server 2007
  • Using Exchange 2007 for Resource Booking
  • Microsoft Exchange Server 2007: Controlling Email Messages using Exchange’s Transport Rules
  • Exchange Database Technologies
  • Message Classifications in Exchange 2007
  • Deploying Exchange 2007 on Windows Server 2008
  • Reporting on Mobile Device Activity Using Exchange 2007 ActiveSync Logs
  • Online Exchange Backups
  • Optimizing Exchange Server 2007
  • Exchange Recovery Storage Groups
  • Exchange Email Addresses and the Outlook Address Cache
  • Goodbye Exchange ExMerge, Hello Export-Mailbox
  • Determining MS Exchange Disk Performance
  • Message Tracking in Exchange 2007
  • Emulating the Exchange 2003 RUS for Out-of-Band Mailbox Provisioning in Exchange 2007
  • Using Exchange 2007 Transport Rules to Protect the First Entry in the Address Book
  • An Introduction to Messaging Records Management
  • Restricting Outlook Client Versions in Exchange 2007
  • Exchange Backups on Windows Server 2008
  • Monitoring and Scheduling Exchange 2007 Database Online Maintenance
  • Exchange 2010 High Availability
  • Implementing Cluster Continuous Replication: Part 1
  • The Active Directory Recycle Bin in Windows Server 2008 R2
  • Using Group Policy to Restrict the Use of PST Files
  • Introduction to Exchange Server 2010
  • Implementing Windows Server 2008 File System Quotas
  • Implementing Cluster Continuous Replication: Part 2
  • Active Directory Management with PowerShell in Windows Server 2008 R2
  • Upgrade Exchange 2003 to Exchange 2010: Part 1
  • Customizing the Outlook Address Book
  • Virtual Exchange Servers
  • Virtualizing Exchange: Points for Discussion
  • Build Your Own Virtualized Test Lab
  • A Beginner’s Guide to Virtualizing Exchange Server: Part 1
  • Windows Server Virtualisation: Introduction to Hyper-V
  • Windows Server Virtualisation: Installing Hyper-V and Beyond
  • A Beginner’s Guide to Virtualizing Exchange Server: Part 2
  • Increasing the Availability of Virtualized Applications and Services

http://www.red-gate.com/community/books/sysadmin-handbook


Nirmal.

Microsoft Hyper-V Networking and Configuration Part 1

Most of the article talks about Hyper-V Networking. It doesn’t really elaborate on basics of Networking. Instead the article focuses more on the Hyper-V Networking and VLAN Tagging with examples.


The first article in this series explains the following topics:


  • Virtual Networking Overview
  • Hyper-V Virtual Network Switch Overview
  • Microsoft Hyper-V Virtual Network Switch Types
  • Microsoft Hyper-V Virtual Network Maximum configuration
  • What happens when you create a Virtual Network Switch?

Continue reading here.


The 2nd part of this article series will be posted soon.


Best, N

Tips – 4

A Quick Tip To Disable “Initial Configuration Tasks List”


This article explains how you can disable the Initial Configuration Task List at logon.


What All Ports Are Required By Domain Controllers And Client Computers?


This article explains the key port requirement for Client computers and Domain Controllers communicating with each other.


A Quick Tip To Check If PDC Emulator Is Working


This article explains how you can tell if PDC Emulator in an Active Directory Domain is working.


What To Check If A Single User Can’t Log On To Domain?


This article explains the tips you can use to troubleshoot the problem for a user who can’t log on to the domain.


A Quick Tip To Verify The SRV Records Of Domain Controllers


This article explains how you can use the NSLOOKUP tool to verify the SRV records of a domain controller.


How To Browse NTDS.DIT Offline


This article shows how you can browse the NTDS.DIT (Active Directory database file) offline by using the DSAMIN command in Windows Server 2008.


How To Allow System State Backups To Critical Volumes In Windows Server 2008?


This article explains a registry hack you can use to allow System State to be backed up to a critical volume in Windows Server 2008.


How Global Name Zones Work In Windows Server 2008?


This article shows the steps included when resolving a name in DNS Server running on Windows Server 2008.


How Do You Restore Previous Backups On A Windows Server 2008 Computer?


This article explains how you can use the Windows NTbackup tool to restore the previous backups on a computer running Windows Server 2008.


“Access Is Denied” Error Message When You Try To Delete A File/Folder


This article explains how you can use Process Explorer, a tool from Sysinternals (now subsidiary of Microsoft), to kill the lock on files and folders.


How To Change The Bakcup Interval Of DHCP Database


This article explains how you can change the Backup Interval of DHCP using a registry entry.


Terminal Services Advertising in Windows Server 2008


This article explains a registry entry for Terminal Services to disable/enable advertising.


How Do You Change The RDP Port No?


This articles explains a registry entry you can modify to change the default RDP Port No. for Terminal Services.