Microsoft NPS, Redundancy

Hello Experts,

Can an NPS Subordinate CA be promoted/changed to Root CA, if the Root CA is not available?  If so, can you please direct me to where I can find instructions.

Thanks in advance.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Microsoft NPS is generally known as Network Policy Server, aka RADIUS. It has nothing to do with Microsoft Certificate Services.

The general recommendation is to take your root CA offline, and issue all certificates from a subordinate CA. That way, if the private keys ever get leaked, it it from the subordinate CA, and you can revoke it's certificate and all certificates it has issued, and setup a new subordinate CA that is signed by the root CA.
Silver_PowerAuthor Commented:
Hi Kevin,

Yes you are right.  My apologies, I may not have made myself clear.   Microsoft AD CS is part of Microsoft NPS, and during installation, it prompts one to select Root CA or Subordinate CA, hence my question.  

Please indulge me as I rephrase my question, in the event of the Root CA server crashing, can a Subordinate CA server be promoted to a Root CA?  Thanks.
No, you can't promote a CA. However, the root CA should not be online anyway, and having all CA offline should not prevent NPS from working. Having CA offline means that you can't issue new certificates, revoke certificates, or check revocation status. NPS should still work.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Silver_PowerAuthor Commented:
It appears that we are trying to do is just not doable, and we have to look at other method.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.