What is DHCP Guard?

With DHCP Guard VMs talks to Active Directory and retrieve the list of valid DHCP servers on the network. One activated it drops DHCP server messages from unauthorized virtual machines pretending to be DHCP servers. DHCP Guard can be activated under Advanced Features in the properties of a Hyper-V VM.

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What does the On-link in route print mean?

Here ist the example of the ‘route print’ command of one of my lab machine ‘On-link’ means that for this special route there is a direct connection an no Gateway is needed. BTW, if you find any questions concerning reachability of servers beetween different subnets, look for valid gateways. The

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What dism also can be used for

"You can use the Windows edition-servicing commands to change one edition of Windows to a higher edition in the same edition family." So you can use dism to convert a windows server 2012 standard edition to windows server 2012 datacenter. More info: http://technet.microsoft.com/en-us/library/hh825157.aspx

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What are local groups for?

The following is taken from http://technet.microsoft.com/en-us/library/cc785098(v=ws.10).aspx You should have a clear idea of what the main groups are made for. I. E. if you want a user to backup your server, just put him in the backup operator group. Group Description Administrators Members of this group have full control. Rest

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Upgrading from Server Core 2008

Switching from Core to GUI is quite simple in Server 2012. But not when upgrading. Windows 2008/2008 R2 Full Server can only be upgraded to Win 2012 Server with a GUI Windows 2008/2008 R2 Server Core can only be upgrade to Win 2012 Server Core After the upgrade is finished

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SYSPREP for Windows Server 2012

I renewed my lab and installed one Windows Server 2012 R2 in a VM. After that I mad two machines from it. I promoted the first to a domain controller and tried to domainjoin the second and the third. This failed saying that the SID is the same as that

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