Organizations have different reasons and requirements for upgrading or migrating to Active Directory Certificate Services (AD CS). They include:
The choice between whether to upgrade or migrate AD CS environment depends on the features and role services that needs to be implemented and the current and desired network environment. The following flow chart will help in selecting the appropriate options and strategies.
In this blog I will demonstrate how to migrate a Windows 2003 based Enterprise CA to Windows 2008 R2 based CA with same PKI name and hostname.