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  • Book Overview & Buying Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to
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Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to

Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to

By : Santhosh Sivarajan
4.4 (9)
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Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to

Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to

4.4 (9)
By: Santhosh Sivarajan
Buy this Book

Overview of this book

Migrating to a new server involves a lot of decision making and planning. Windows Server 2012 comes with exciting new features and ease of use. This book will help you migrate to your new server in no time. "Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to" provides you with many practical and real world scenarios in a step-by-step guide. It is designed to lead you through the entire process of migration.Beginning with an introduction to Windows Server 2012, the author then takes you through the installation and configuration of the server, before continuing on to migrate the existing services to Windows Server and how to decommission old servers. The ‚Äúhow-to‚Äù migration scenarios described are based on the author's own field experiences, guaranteeing real-world solutions. The scenarios include Active Directory, enabling a Remote Desktop, Print Server, and Hyper-V migration details. From the planning to  theimplementation phase, "Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to" is your comprehensive guide for completing migration solutions.
Table of Contents (2 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to
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1. Instant Migration from Windows Server 2008 and 2008 R2 to 2012 How-to
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Installing Windows Server 2012 (Must know)
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Converting Server Core to Server with a GUI (Should know)
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Converting Server with a GUI to Server Core (Should know)
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Configuring Windows Server 2012 (Must know)
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Installing administration tools (Must know)
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Working with Server Manager properties (Should know)
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Adding servers to Server Manager (Should know)
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Creating server group (Should know)
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Enabling remote desktop (Should know)
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Add and remove roles and features (Must know)
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Active Directory migration (Must know)
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FSMO role transfer/migration (Must know)
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Windows Server Migration Tools (Must know)
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Dynamic Host Configuration Protocol (DHCP) migration (Must know)
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DNS migration (Should know)
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Data and file server migration (Must know)
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Printer and print server migration (Must know)
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Hyper-V migration (Should know)
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Decommissioning old domain controllers (Must know)
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Forest and domain functional level (Must know)

DNS migration (Should know)

If the DNS zone is Active Directory Integrated (ADI), the zone information will be replicated as part of the Active Directory replication. The scope of the replication is based on the Replication configuration in the zone itself as shown in the following screenshot:

DNS migration (Should know)

If the zone is Active Directory Integrated and the proper replication scope is configured, you don′t need to perform any other migration for the DNS zone. Both forward lookup and reverse lookup zones will replicate to the new Windows Server 2012 Domain Controller during the Active Directory replication.

However, if you have a primary or secondary zone on a standalone server or a member server, you need to perform a migration. There are many ways to achieve this. One option is to perform the migration using a secondary to primary conversion method. Then decommission the old DNS server. Before the DNS zone can be replicated, you need to make sure that the zone transfer is allowed to the new Windows Server 2012 server. These settings can be changed from the Zone Transfers tab as shown in the following screenshot:

DNS migration (Should know)

To migrate a DNS zone using the secondary to primary method, refer to the following recipe.

How to do it...

  1. Create a secondary zone on the new Windows Server 2012 server.
    1. Open the DNS Management console.
    2. Right-click on the Forward Lookup Zone node. Click on New Zone.
    3. Click on Next on the Welcome window.
    4. Select Secondary Zone as the Zone Type. Click on Next.
    5. Enter the zone name. Click on Next.
    6. On the Master DNS Servers window, enter the IP address of the primary DNS server.
    7. Click on Finish.
  2. Convert the secondary zone to primary zone.
    1. Verify that the zone information has been completely transferred over to the new server.
    2. Right-click on the zone and go to Properties.
    3. From the General Tab, click on Change. Select the zone type as Primary. Click on OK.
  3. Verify the Start of Authority (SOA) tab and make sure that the primary server is updated with your new Windows Server 2012 name.
    How to do it...
  4. Verify the Name Servers tab for name servers.
  5. Repeat the same procedure for other DNS zones and decommission the old DNS server.

How it works…

The preceding method creates a secondary DNS zone on Windows Server 2012 and converts them to a primary DNS zone after the zone replication. After the DNS zone conversion, Windows Server 2008/R2 and Windows Server 2012 servers will have the Primary DNS zone.

There′s more...

The other option is to use the dnscmd command. The following commands can be used to export and import zone information between two DNS servers:

Export - dnscmd /zoneexport <ZoneName> <ExportFileName>
Import - dnscmd /zoneadd /Primary /File < ExportFileName>

The dnscmd command is still available on Windows Server 2012. However, this command may be discontinued in the future versions of the product or release. So it is recommended to use the PowerShell cmdlet for the future use. The DnsServer PowerShell module has many cmdlets which can support DNS migration scenarios.

Unless you have valid business and technical requirements, it is a best practice to use the Active Directory Integrated zone. Also, you may want to look at the DNS Security Extensions (DNSSEC) in Windows Server 2012 and how it can be beneficial to your environment.

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