Microsoft is investigating LSASS memory leaks (caused by Windows Server updates released during the November Patch Tuesday) that might lead to freezes and restarts on some domain controllers. LSASS ...

Security researchers have devised a way to block the recently disclosed PetitPotam attack vector that allows hackers to take control of a Windows domain controller easily. An new version of the ...

Since their release on Patch Tuesday, the updates have been breaking Windows, causing spontaneous boot loops on Windows domain controller servers, breaking Hyper-V and making ReFS volume systems ...

At our organization I'm responsible for our Windows infrastructure and another guy looks after all the Linux/*nix stuff. We're currently running a domain using Windows 2003 R2 Domain Controllers with ...

Microsoft’s May Patch Tuesday update is triggering authentication errors. Microsoft is alerting customers that its May Patch Tuesday update is causing authentications errors and failures tied to ...

Microsoft warns of credential-stealing NTLM relay attacks against Windows domain controllers Your email has been sent Microsoft is sounding an alert about a threat against Windows domain controllers ...

I have my DHCP server (on Sonicwall) configured to give out the domain controller/DNS server ip as primary DNS, for secondary DNS I have set to give out 1.1.1.1, for tertiary 8.8.4.4 Does this comply ...

Microsoft has posted advisory and detailed instructions on protecting Windows domain controllers and other Windows servers from the NTLM Relay Attack known as PetitPotam. The PetitPotam take on the ...

The US Cybersecurity and Infrastructure Security Agency (CISA) has taken the unusual step of removing a bug from its catalog of vulnerabilities that are known to be exploited, and which federal ...

In two previous articles (here and here) I shared some classic Active Directory mistakes people have made that got their companies into serious trouble. Here’s another mistake that on the face of it ...

Microsoft squashed 74 security vulnerabilities with its May 2022 Patch Tuesday update, including an important-rated zero-day bug that's being actively exploited in the wild and several that are likely ...

It’s back to the future – remember the Windows NT Backup Domain Controller (BDC)? It could log you on, but you couldn’t make any changes to it. The 2008 version of the BDC goes by the new name of Read ...