How do I configure AD CS to support Name Constraints (4.2.1.11 in RFC 2459)?

Solution 1:

Microsoft just posted this article on how to use Name Constraints with AD CS

To apply a name constraint to a pending policy run the following command

Certreq -policy originalrequest.req policy.inf modifiedrequest.req

originalrequest.req – the original request file provided by the subordinate to the parent CA

policy.inf - The policy file containing the settings you want to be applied to the request

modifiedrequest.inf - This is the output file that will contain the original request and has been modified by the policy. This file will be supplied to the parent CA instead of the originalrequest.req