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  • Blog

    Two Factor Authentication for Remote Desktop Services

    There is a fair amount of information out there about how to accept two factor authentication (2FA) for connecting to Remote Desktop Web Access (RDWA), but this leaves out the truly important connection to the RD Gateway (RDGW).  About a year ago Freek Berson, an MVP in RDS wrote a blog post that addresses this very…

    Concurrency
  • Blog

    Offline Address Book Fails to Download in Exchange 2010

    I ran into an interesting issue where the Exchange 2010 OAB failed to download to Outlook 2010, 2007, and 2003 clients.  This started after configuring Outlook Web Access redirection using the IIS HTTP redirect capability (sending “/” to “/OWA”).  In testing the issue, I attempted to browse to the OAB xml file manually through my web browser. …

    Nathan Lasnoski
  • Blog

    Powershell is not digitally signed: Set-ExecutionPolicy

    If you have tried to run a PowerShell script that isn’t signed, you’ve likely run into the security error “File … cannot be loaded.  The file is not digitally signed.  The script will not be executed on the system. “  This means that the script is not trusted to be run on your system. If you’d like to sign…

    Nathan Lasnoski
  • Blog

    Lync Traffic Flow Diagrams / Lync Workloads and Ports

    n working with Lync, especially enterprise topologies, one of the most valuable skills is the ability to understand the flow of traffic within the infrastructure.  In Lync, there is an extensive number of ports used for various application services.  I’ve found that if I understand the flow of traffic, I can quickly diagnose a problem…

    Concurrency, Inc.
  • Blog

    DHCP Filtering

    Windows Server 2008 R2 includes the ability to explicitly Allow or Deny DHCP requests to defined MAC addresses.  This allows you to prevent unknown devices from obtaining DHCP access to the network by creating a Block List and/or and Allow list. You can read more about it in the DHCP Team Blog site. Enable filtering Open…

    Concurrency, Inc.
  • Blog

    Azure AppFabric Overview

    Microsoft’s Azure Services Platform is a “platform as a service” which provides the base of delivering a variety of hosted services, such as web applications, SQL, virtual machines, and other services.  In this post we’ll be discussing Azure AppFabric, in an attempt to provide clarity to its intention and use. What is Azure AppFabric? Azure AppFabric…

    Nathan Lasnoski
  • Blog

    Enable BitLocker, Automatically save Keys to Active Directory

    Companies have always been concerned about the security of data on their mobile users’ computers.  What happens if the computer is lost or stolen?  How can you be sure that the “stuff” on that computer does not fall into the wrong hands?  The answer is encryption, and there have been various options like GuardianEdge, CheckPoint Pointsec and TrueCrypt, but now…

    Concurrency
  • Blog

    UAG DirectAccess: Network Location Server (NLS)

    UPDATE: My guide for Configuring DirectAccess with UAG Service Pack 1 has been released! Read it here. DirectAccess enabled clients use a pretty rudimentary assessment to determine if it should use the virtual interfaces to connect to “corporate resources”.  The primary test is to see if the Network Location Server (NLS) can be found.  This is an incredibly…

    Concurrency
  • Blog

    SharePoint 2010 Basics: Content Types and Site Columns

    Content types and site columns are the foundational elements of SharePoint, but they often get misused. Whether it’s creating too many content types, not enough, or recreating site columns that are already available out of the box, it is critical to remember some key aspects when instituting and managing these items: Content Types Content types are a…

    Concurrency