Archive for April, 2012

Disabled UAC still active

April 17th, 2012 No comments

At one of our bigger customer we started to have weird problem. When you disabled UAC it was still active even after reboots.

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Categories: Security, Windows Tags: , ,

SYSVOL FRS to DFSR migration

April 16th, 2012 1 comment

Most of you probably already updated Active Directory infrastructure from Windows 2003 to Windows 2008 R2. What I see most is that administrators do not upgrade DFS replication subsystem for SYSVOL shares. Before Windows Server 2008 (also R2) was released FRS (File Replication System) is used. In Windows 2008 R2 there is new version released and it’s called DFSR (Distributed File System Replication).


FSR uses NTFS volumes’ USN journal to determine when a change has occured to a file and triggers replication. When FSR detects file close it gathers information about file and it’s attributes. It also checks file’s MD5 hash. If MD5 hash changes it will trigger replication. If file has changed whole file is send to FSR replication partners.


First benefit of DFSR is that it doesn’t replicate whole file, but just a changed data in the file. To be able to check only changes in files it uses RDC (Remote Differential Compression) compression algorithm.

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Playing with Windows Server 8 Beta

April 10th, 2012 No comments

Couple days I installed Windows Server 8 and I started to play 🙂

There is weird desktop in new Windows. It’s not as pretty as it is in Windows Server 2008. It’s kinda forced to use touch screen, but who would use touch screen to administer servers? Not me 🙂

Normal stuff

  • I couldn’t find any way to restart/shutdown Windows Server 8. Only way I could use is command line (shutdown.exe). But there is a way via Metro…upper right corner…Settings…Power…Restart (
  • I don’t know how to turn IE ESC off. I couldn’t find any setting to enable/disable it
  • It is nice to be able to team network interfaces, but there is no help what each setting means


Active Directory

Nice article about changes


They have imported DNSSec into DNS server.

Security tab for DNS server settings is running faster 🙂

Windows Update Service

I received errors after installation and I couldn’t run WSUS console.

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