DHCP- Find Duplicate Reservations That Have Different IP Addresses – Split Scope

Fundamental problem when you have two dhcp servers and the scopes split, is that human error creeps in and you may get DHCP reservations that have different IP addresses on each server. Now probably you rarely have DHCP server failures that you cannot fix quite quickly, so you have never noticed this as the lease […]
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Microsoft Best Practice Infrastructure Planning and Design Guide Series

I am surprised a lot of people do no know these guides exist http://technet.microsoft.com/en-nz/solutionaccelerators/ee382254.aspx If you want to know how to configure your Active Directory environment and other Microsoft products , look at these first Some of it is a bit out of date: For Exchange 2013 – If you want to know how to […]
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Event ID: 4 The Kerberos client received a KRB_AP_ERR_MODIFIED Windows 2003 and Windows 2012 R2 DC Environment

Good timing for me, bad timing for those that already have 2012 R2 DCs in their domain. Event ID: 4 The Kerberos client received a KRB_AP_ERR_MODIFIED There is a bug in Kerberos When a Windows 2012 R2 DC is promoted in an environment where Windows 2003 DCs are present, there is a mismatch in the […]
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Migrate DHCP Server to Windows Server 2012 R2

In my case I am migrating two 2003 DHCP Servers (that are also DCs) with split scopes over to  two 2012 R2 DHCP Servers that are load balanced Before you Migrate Windows Server 2012 R2 DHCP Expired Leases Not Getting Scavenged worth following suggestions to potentially avoid the issue Migration Steps to follow for migrating DHCP Server […]
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