Author Archives: Jani Kohonen

Jani Kohonen Visit Website
Jani Kohonen is an author of janikohonen.com and working as a Citrix Consultant and Architect with 22 years of experience in the IT industry. Jani's been working in the IT industry since 1997 and with Citrix technologies since 2001. He holds several years experience with Microsoft, Citrix, Apple, HP and VMware vendors as well as Server, Application and Desktop virtualization and Mobile technologies. He has done dozens of virtualization design and implementation projects from Small Business to the large global enterprise customers and complex environments. Jani has been awarded as Citrix Technology Advocate (CTA).
Active Directory, Blog, Microsoft, Windows
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Windows Server 2008 Domain Controller Replication Error “The target principal name is incorrect”

Recently I’ve picked up a client with some issues with Active Directory replication. Domain Controller seemed to be offline and launching Active Directory Domains and Trusts GUI tool error message “The target principal name is incorrect” pop-up.

Fastest way was to demote it, cleanup meta data, seize FSMO roles to the another healthy Domain Controller which has Global Gatalog as well and promote back.

1. Faulty DC: Force demotion of the faulty Domain Controller by running DCPROMO /FORCEREMOVAL.

2. Healthy DC: Perform a metadata cleanup, see: http://technet.microsoft.com/en-us/library/cc816907(v=ws.10).aspx

3. Healthy DC: Run NETDOM QUERY FSMO to see if the old Domain Controller was an FSMO holder. If yes, seize the FSMO roles that it was holding on another Domain Controller. See: http://support.microsoft.com/kb/255504

4. Faulty DC: After server rebooted change DNS settings to point another Domain Controller if it’s not.

4. Faulty DC: Run DCPROMO to promote Domain Controller back.

 

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Citrix, VDI, VMware, XenDesktop
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Choosing a VDI Solution: Why Citrix Beats VMware

Many organizations turn to VDI to support initiatives for mobility and bring-your-own device (BYOD) – or just simply to improve IT efficiency. What are your reasons for exploring a VDI solution? As you explore your options, consider these reasons to choose Citrix XenDesktop over VMware Horizon View. The choice you select will define the business you drive.

More info:
http://www.citrix.com/articles-and-insights/desktop-virtualization/jun-2014/choosing-a-vdi-solution-why-citrix-beats-vmware.html

Want more details? Compare Citrix XenDesktop and VMware View features:
http://www.citrix.com/products/xendesktop/how-it-helps/compare.html

 

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Citrix, XenApp
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XenApp 7.X Architecture and Sizing

Dell’s solutions engineering team just posted an extensive refresh of their XenApp recommendation for their Citrix solution architecture.  The post includes sections on architecture, use cases, optimization and configuration recommendations.

Dell and Citrix have a long history of working together to develop joint desktop virtualization solutions and this is another great example of the work that comes from our alliance.  Thanks to Peter Fine, Dell Solution Engineer, for the work his team does to drive optimized solutions for Citrix on Dell platforms.

http://weestro.blogspot.com/2014/05/xenapp-7x-architecture-and-sizing.htm

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