Removal of old CA server stale data
Hi, I'm rebuilding some DC's and figured I'd tidy everything up before doing so as I've come into this with a messy environment. from this, I found an old Trusted Root CA, the certificate authority server was decommissioned in 2021 and all certificates have had an expiry date from 2021. its still being pushed out to domain devices such as servers and desktops. I tried running the 'certutil -dsdelca' command however this comes back with invalid command. I guess the best option is just to remove the class objects from the ADSI edit? as there is a class in AIA, CDP, Certification Authorities, KRA with the certificate nameAn error occurred while obtaining certificate enrollment policy.
Recently I was following: KB5005413: Mitigating NTLM Relay Attacks on Active Directory Certificate Services (AD CS) After various changes I got to the point where I could not fully disable NTLM on EnterpriseCA server, because I simply could not login to the MSADCA: Audit NTLM authentication requests within this domain that would be blocked if the security policy Network Security: Restrict NTLM: NTLM authentication in this domain is set to Deny for domain servers or Deny domain accounts to domain servers. But also the changes caused the error while accessing from mmc/certificates An error occurred while obtaining certificate enrollment policy. Url: https://entca.domain.local/ADPolicyProvider_CEP_Kerberos/service.svc/CEP Error: The remote endpoint could not process the request. 0x803d000f (-2143485937 WS_E_ENDPOINT_FAILURE) I can click Continue & everything works fine, but would like to understand why the error Help appreciated Seb
Certificate Authority Revocation issues: CRL db lost in migration
We currently have a CA which was migrated from a retired server no longer available - over 6 months now but they didn't complete the migration, and the revocation database is missing. We're now experiencing issues with certs issued but the former server that it cannot issue renew certs. What is the best approach to this? I can create another CA server but what about the root certificate of the current one? How do you point renew requests to the new server if there is no revocation DB for the already issued certs? What about the current certs issued by the current server if I migrate the current one to a new CA? I do have copies of the system32\certsrv folder and CA backup from the retired server, but this backup was used to migrate the current one which resulted in its current state. Can the revocation db just be imported? Any help would be appreciated! Thanks.Certificate templates
Hello, We have a 2016 domain controller that is also our Enterprise CA server. We need to retire this server so I've built a server 2022 box, which sole purpose will be for the enterprise CA. while there are plenty of guides with MS and other sources on how to move the CA, I cant seem to find an answer to if the certificate templates are lost when the role is removed from the CA server (in our case a domain controller.) In the MS guide there is the following information: the certificate templates settings are stored in Active Directory. They are not automatically backed up. You must manually configure the certificate templates settings on the new XA to maintain the same set of templates. Does this mean the the new dedicated CA server will be able to see the certificate templates and will be able to add/reissue them? this is a brief summary of our plan. -backup CA config on dc01 -remove the CA role from dc01 -add the CA role to the new CA01 (dedicated CA server/non domain controller) -restore the CA configuration -reissue the templates? -demote and retired dc01 please note we have another 3 domain controllers in the domain.
BitLocker network unlock issue
Hi, I'm struggling a bit with Bitlocker network unlock deployment in my environment. I'm following this guide: https://docs.microsoft.com/en-us/windows/security/information-protection/bitlocker/bitlocker-how-to-enable-network-unlock#bkmk-installnufeature And I have 2 issues overall. First one is the certificate request to CA. I'm able to request certificate and issue it w/o problems. The issue appears later on - the cert looks like it's selfsigned (certificate on the first screenshot is revoked beacuse I didn't want it to stay there since it didn't work like it should). Certificate on the second screenshot is the cert that's popping up in certmgr.msc on the machine that I was sending the cert request from. It is the same cert - yet it is not? It should end up in Personal container signed by CA but instead it goes to Pending container and it looks like its selfsigned.. Am I missing something? I'll be honest - I do not have an experience with CA. I simply followed the guide. I made a workaround by doing a selfsigned in the next part, so it is not that big of a problem - although I'd like to have a signed cert there. The real problem is - GPO settings. I've tried everything. Updated the .ADMX files in SysVol manually, cleared GPO cache on the client machine, tried setting the GPO's from the guide to the multiple containers, even on the root domain level itself (just for testing puropses) - no luck. The policy simply do not apply. There is no error in RSOP or in gpresult. I've tested it on multiple machines and user accounts with Security filtering and without. I tied to split it to 3 separate policies to check if maybe one of them is problematic. None of these 3 policies applied even once. Other poclies are applied without any problems or issues. What should I do now? Anyone had similar issue?