AD Troubleshooting

AD and Domain-related issues and troubleshooting methods for Active Directory.

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  • Blog Post: Debunking Slow Logon Myths

    Over the years, the following three causes for slow logons have been mistakenly identified as being relevant for improving logon speed on Windows clients. Deleting your cached roaming profile. This will most likely do nothing or even make your logon slower if the profile is excessively big and...
  • Blog Post: Primers for building a highly available Active Directory environment

    Notes from the field on things to consider with regards to maintaining Active Directory: Hardware Diversity - this includes virtualization and SAN's. Read the official Microsoft notes on virtualization recommendations in the Technet article and KB below. DC's are designed to be redundant and distributed...
  • Blog Post: The problem with problems...

    Let's say you're looking at a glaring Red event in your event log that has an ominous ring to it or some monitoring program that screams loudly because some parameter it has defined isn´t being met by tests it is doing. That's bad, right? The answer is of course, it depends on the context...
  • Blog Post: Iceland vNext evolution

    This blog has been my scratchpad for the last 6 years or so for noting down interesting things encountered while assisting customers get the most out of their Microsoft Environments. However, as I'm leaving Microsoft and relocating then this will be the closing entry on it. My primary goal at...
  • Blog Post: The end of days [for XP support]

    In case you missed it - there is now less than 18 months of extended support for the venerable Windows XP platform left. The key takeway from that statement is that there will be no security updates for XP released after April 8th 2014. In the Enterprise space it's not uncommon to have a migration...
  • Blog Post: Naming schemes to avoid in AD

    At some point, you'll find yourself in the situation where you need to decide on a naming scheme for an Active Directory forest and domain. This is a critical point and should not be chosen when you're standing in front of the screen and typing DCPROMO. Let me elaborate a bit... Historically, Microsoft...
  • Blog Post: The Dark Side of Virtualization

    Over the years I've been engaged in several AD disaster recovery scenarios where things ultimately boiled down to the same root cause; a single point of failure had been introduced into the IT environment. When the single point of failure failed catastrophically - it consequently took down the entire...
  • Blog Post: ISA/TMG team in Sweden is hiring

    Interested and qualified parties should check out http://blogs.technet.com/b/isablog/archive/2010/09/15/forefront-tmg-uag-help-wanted-at-microsoft-in-stockholm.aspx?wa=wsignin1.0 .
  • Blog Post: How to make things better by making them worse

    Does that sound right? Of course it doesn't...but in some cases that's just what troubleshooting is all about. I.e. to force the problem to show itself in a consistent manner so you can grab it by the tail and give it a solid thrashing. This is the reason for things like disabling Fast Logon Optimization...
  • Blog Post: Windows 2020?

    It's hard to believe we've had 10 years of Windows....however, with the Internet/IT year being 3 months this decade in fact spans 40 years... Windows passed into the new millennium and adulthood in 1999 with Windows 2000, from 1996 we'd had Windows NT 4.0 and 3.51/3.5/3.1 before that of course as...
  • Blog Post: Time travel and factors that increase client startup or login time

    This entry is written concerning the following issue; How applications and services can add to the startup or login time of clients. The basics first; On any operating system, performing any operation takes time. This is just a fact of life and is more related to the nature of time than a question...
  • Blog Post: The return of the son of Visio Network Topology Diagrammer

    The Microsoft Active Directory Topology Diagrammer is back in a fresh new release from June 2011, a must-have tool for anyone with an AD infrastructure beyond the basic setup that wants to get a birds-eye view of their AD topology with the click of a button. Requires Microsoft Office Visio and lots...
  • Blog Post: The golden rules of user resource management

    If you make unlimited storage space available to users, your users will use unlimited storage space...and then come back and ask for more storage space to be made available. - Avoid giving out unlimited disk space or mailbox space to your users, computer systems in general are a limited resource. It...
  • Blog Post: The Legacy of the Past Tense

    When working with Microsoft technologies you'll inevitably come across references to Legacy API's, Legacy OS's, etc. Have you ever wondered what that means in technical terms? Well, in technical terms this is just a reference to indicate that a newer piece of whatever API component or OS we're...
  • Blog Post: God mode on Windows 8

    It' s summer, you're bored enough to start reading random newsletters and then you pick up something useful. Create a folder on your Surface desktop with the name GodMode.{ED7BA470-8E54-465E-825C-99712043E01C} Open The folder for a surprise... ...this incidentally also works on Windows...
  • Blog Post: The importance of being up to date

    One of the best tips my mentor gave me when I started at Microsoft 7 years ago was the following: My young Padawan! Thou must seek the latest binary for the component you're troubleshooting and check if the problem still occurs with that binary installed. Obediently ignoring the fact that I was...