Introduction Just a short blogpost about troubleshooting existing certificate services within the Active Directory domain. In this case the domain controllers were not able to renew their certificates through autoenrollment. In a meanwhile the existing certs were already expired so LDAPS was no longer available. A group of servers did not find any trouble updating their certs,
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Tag: Windows Server 2012
SID translation problems Weird things can happen if something goes wrong with the RPC protocol, wheter it’s related to network traffic being blocked by a firewall (yes, I’m talking to you ephemeral ports) or just because the name resolution contains numerous configuration errors. Recently I was asked to troubleshoot SID translation problems over a forest trust. The
Introduction There are several good guides on the internet about upgrading your Active Directory Forest, Domains and Domain Controllers to Windows Server 2012 R2. I’d like to give you my strategy on this subject. It’s not wrong to add new Domain Controllers to your 2003/2008 domain, transfer the FSMO roles and demote the 2003/2008 DC’s,
In case you’ve accidentally deleted a DNS zone it’s good to know how to recover asap and get the deleted zone back in your production environment. I’m using a DNS zone export as a backup of the zone that has been deleted. We admins are lazy so this is the most convenient way to recover a
One of the biggest challenges in Active Directory Domain Controller upgrades are the application member servers, specifically the ones that make use of Active Directory authentication (Ldap). We all know the legacy applications within the organization, they’re still running after ten or more years, nobody knows something about it, there isn’t any documentation left but
Recently I performed an in-place Windows Server 2012 domain controller upgrade to 2012 R2. An in-place upgrade will keep the existing documents and settings on the server. Windows Server 2012 R2 is considered an incremental upgrade as it adds features to the operating system rather than make major changes to the operating system. In this blog
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