Solved

Problem with subordinate ca issuing Certs in Windows 2000 domain

Posted on 2003-11-27
6
403 Views
Last Modified: 2013-12-04
Hi having a problem with my CA infrastructure...Parent-child domains, native mode. I placed the administrator of the child into the enterprise admin group in the parent. My DNS is not active directory intergrated (i dont think it makes a differencce however).

I created a Root CA on the DC in the parent domain, and a sub CA on the child DC. All was fine. AD was looking good. Both of course installed as enterprise CA's. Clients (other servers) begain to obtain certs. Parent clients had no problem, child clients got access denied. This was tried using the certsrv virtual directory and clients using Internet explorer.
0
Comment
Question by:lesmydad
  • 3
  • 3
6 Comments
 
LVL 41

Expert Comment

by:graye
ID: 9863584
I'm not sure I understand...

You've created a Enterprise Root CA... and a Enterprise Subordinate CA.   I assume that you're issuing certification only from the Subordinate (Is that true?)  The certificate path is not "broken"... each certificate can "find it's way back" to the root.

At the certificate console (on the subordinate CA), you've selected the automatic feature for issuing certifcates?
0
 
LVL 1

Author Comment

by:lesmydad
ID: 9890313
isnt it automatic by def?
0
 
LVL 41

Expert Comment

by:graye
ID: 9893816
Autoenrollment is only available on Enterprise CA's if you use one of the certificate "templates"... nothing is automatic by default.

The idea is this... using a template (and granting appropriate users read access to that template) provides the Enterprise CA enough information (combined with the account data from the Active Directory) to issue a certificate.  That's why stand-alone CAs don't support autorenollement.. they don't have enough information on what the certificate is to be used for.  I presume you're also using the "web enrollement" feature?

I'm betting that the issue is something more simple... like a broken root.  The Enterprise root CA "points to itself" for it's authority (kinda strange when you think about it) so, it's path really can't be broken.  The Enterprise subordinate CA must be configured to point to the Enterprise root CA for it's authority. (Otherwise you've got a broken root).  

Remember too, that you can't rename the server after installing Certification Services...

Let's eliminate the simple stuff, before we get too deep.
0
Give your grad a cloud of their own!

With up to 8TB of storage, give your favorite graduate their own personal cloud to centralize all their photos, videos and music in one safe place. They can save, sync and share all their stuff, and automatic photo backup helps free up space on their smartphone and tablet.

 
LVL 1

Author Comment

by:lesmydad
ID: 9906996
Thax so much for the help. Im testing it out on the Thursday 11th Dec with my class (Network Infrastructure would you believe!!!). The scenario is kind of the same but there is no child domain. I will build the child CA however. I am slightly confused over the use of AD here. I think I read that on a stand alone CA it does obviosly not use AD, but  a Stand Alone CA on a DC would infact make use of it if its available. This might sound strange but im sure i read it somewhere!!! I really need some good references. By the way I am using the /certsrv.

ps can you issue these user certs through a GPO? It seems you can with machine certs. Is this what client mappings are for?
0
 
LVL 41

Accepted Solution

by:
graye earned 300 total points
ID: 9909040
First of all...it should have dawned me eariler...that you were issuing certificates from the root CA. Typically the root CA issues certificates to subordinate CA's only (unless you've only got one CA server )

You can use a GPO to setup a template...that will automatically issue certificates (kinda sorta the same thing)
0
 
LVL 1

Author Comment

by:lesmydad
ID: 9922137
I did get the chance to test a root-sub infrastructure using stand alones (on a single subnet) and root-sub infrastructure using enterprise CA's (on another subnet). Seemed ok. The only problem I found was that when machines acquired certs using the client cert mmc, 'request new cert' wizard, certs were being given by the enterprise root domain, not the subordinate.

If you could answer this one i would be grateful? I will post more when I get the chance to run the scenario again but next time use parent child domains across networkA--Router--networkB like in the question.
you get the points with gratitude from a tired out MCT
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many people tend to confuse the function of a virus with the one of adware, this misunderstanding of the basic of what each software is and how it operates causes users and organizations to take the wrong security measures that would protect them ag…
The term "Bad USB" is a buzz word that is usually used when talking about attacks on computer systems that involve USB devices. In this article, I will show what possibilities modern windows systems (win8.x and win10) offer to fight these attacks wi…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now