RPC over IT/Pro

Hi folks, Ned here again to talk about one of the most commonly used – and least understood – network protocols in Windows: Remote Procedure Call. Understanding RPC is a foundation for any successful IT Professional. It’s integral to distributed systems like Active Directory, Exchange, SQL, and System Center. The administrator who has never run… Read more

Is this horse dead yet: NTLM Bottlenecks and the RPC runtime

Hello again, this is guest author Herbert from Germany. It’s harder to let go of old components and protocols than dropping old habits. But, I’m falling back to an old habit myself…there goes the New Year resolution. Quite recently we were faced with a new aspect of an old story. We hoped this problem would… Read more

Troubleshooting SID translation failures from the obvious to the not so obvious

Hi guys, Joji Oshima here with my first post. A common problem we see is SID translation failure. The problem usually occurs when you add users or groups from a trusted domain into your domain local groups. What you hope to see is the friendly names of the users, and their domain: Unfortunately, you only… Read more

Friday Mail Sack: “Who am I kidding, more like Monthly” Edition

Hi folks, Ned here again with another tri-weekly Friday Mail Sack. This time we talk service auditing, trust creation, certificates and USMT, SYSVOL migration with RODCs, DFS stuff, RPC and firewalls, virtualization, and the zombie corpse of FRS. Shoot it in the head! Trusts prompting for credentials too soon DFS Namespace and anti-virus performance Blocking… Read more

Restrictions for Unauthenticated RPC Clients: The group policy that punches your domain in the face

Hi folks, Ned here again. Around six years ago we released Service Pack 1 for Windows Server 2003. Like Windows XP SP2, it was a security-focused update. It was the first major server update since the Trustworthy Computing initiative began so there were things like a bootstrapping firewall, Data Execution Protection, and the Security Configuration… Read more