Orin Thomas


Orin Thomas is an MVP, an MCT and has a string of Microsoft MCSE and MCITP certifications. He has written more than 30 books for Microsoft Press on topics including Windows Server, Windows Client, System Center, Exchange Server, Security, and SQL Server. He is an author at PluralSight and is a contributing editor at Windows IT Pro magazine. He has been working in IT since the early 1990's and regularly speaks at conferences in Australia and around the world. Orin founded and runs the Melbourne System Center, Security, and Infrastructure Group. Follow him on twitter to check out his most recent tweets.

Windows Server 2003 Migrations: Upgrading Domain & Forest Functional Levels
Once you’ve removed all of the Windows Server 2003 domain controllers from your environment, you can upgrade the domain and the forest functional levels.
Removing legacy domain controllers 1
Once you’ve added a sufficient number of Windows Server 2012 R2 domain controllers to your organization’s Active Directory forest, migrated the FSMO roles, ensured any custom partitions are also hosted on your Server 2012 R2 domain controllers, and made a couple of those 2012 R2 DCs global catalog servers, you can get rid of the existing Server 2003 DCs.
Moving FSMO Roles 1
One of the advantages of moving Active Directory from Windows Server 2003 to Windows Server 2012 R2 is that you get to take advantage of all the new Windows PowerShell cmdlets.
Introducing new 2012 R2 domain controllers to a 2003 environment 1
Introducing new domain controllers running Windows Server 2012 R2 to a Windows Server 2003 environment is relatively straightforward.
Triaging Active Directory Migration
When thinking about Active Directory migration from Server 2003 to Server 2012 R2, it’s good to have a list of things to do and the order in which you should do them.
Understanding Active Directory Changes
Chances are, if you have an environment with a large number of servers running Windows Server 2003, you have domain controllers running Windows Server 2003. If you have domain controllers running Windows Server 2003, your domain and forest are likely to be at the Windows Server 2003 functional level.
Planning Active Directory Migration
There are two general strategies you can pursue when moving from an Active Directory Forest that has domain controllers running Windows Server 2003 to an Active Directory Forest with domain controllers running Windows Server 2012 R2.
Migration Test Environment – Part II
So what makes a good migration test environment?
Migration Test Environment – Part I
As someone wise once noted, when swinging through the trees, Tarzan didn’t let go of the last vine before he had grasped the next one.
Overview of Consolidation
When Windows Server 2003 was released, most Windows Server deployments were physical rather than virtual.
Decommission Vs Repurpose
One unusual problem that turns up when migration occurs, especially workloads have been moved off “bare metal” hardware and virtualized, is “what do we do with the bare metal hardware once the workload is migrated?”
Windows Server 2003 Migrations: Locally hosted or Cloud VMs?
When migrating workloads from Windows Server 2003 to Windows Server 2012 R2, should you deploy them locally as VMs on a virtualization host that you manage, or should you host them in the public cloud?
Department of Homeland Security issues alert about end of Windows Server 2003 support
US-CERT, the United States Computer Emergency Readiness Team has released an alert reminding people about the impending end of extended support for Windows Server 2003.
Physical or Virtual?
When planning the migration of workloads away from Windows Server 2003, you’ll need to choose whether those migrated workloads will be deployed on “bare metal hardware” or whether they will be virtualized.
Triaging Migration Workloads
Unless you’re already deeply into the migration process, it’s probable that your organization won’t have migrated all workloads from Windows Server 2003 to Windows Server 2012 R2 or another operating system by the time that the end of extended support date rolls around in July 2015.
What is the value of IT industry and/or Microsoft certifications?
October 15, 2014

Certifications provide a structure (and a reason) to learn a new technology. Not everyone has the inclination to wander through (for example) the AD FS or AD RMS documentation...

Microsoft layoffs impact Exchange technical writers - where now for documentation?
September 25, 2014

If people don't know what the product does, don't expect them to discover that it does it. Getting rid of excellent documentation isn't just shooting oneself in the foot, it's...

Sad death of Exchange expert Andrew Ehrensing
September 4, 2014

Deeply saddened to hear this news. A truly wonderful genuine guy. Always helpful and smiling.

Will Microsoft Ever Break the Even-year, Windows Flop Pattern?
August 8, 2014

So why isn't the various iterations of Windows NT and Windows 2000 included in this list?

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