X-flash-version header can prevent ISA/TMG from compressing contents

  In this blog post I want to discuss a solution, which we provided to one of our customers. The problem was linked to a published web site where specific flash content had not been compressed as expected by TMG/ISA. The first thing which is important to mention is, that it usually it not necessary…


Switching to text file logging fails with Event ID 11003

  Some days ago a customer opened a case because an ISA array was randomly refusing all the incoming connections and a restart of the Firewall Service was required to make the connections be accepted again. After a quick investigation we figured that the cause of the issue was that the Firewall Services went in…


Forefront TMG SP2 at Security Talk Show

Richard Hicks (Forefront MVP) was interviewed by Tom Shinder and Yuri Diogenes for their Security Talk Show called From End to Edge and Beyond. In this interview Richard explains and demonstrates some of the new capabilities of Forefront TMG SP2.  Check it out the interview here: http://technet.microsoft.com/en-us/edge/from-end-to-edge-and-beyond-episode-11


Use ISA/TMG to distribute your custom WPAD configuration file

In ISA 2006 SP1 and TMG RTM it’s possible to configure ISA/TMG to distribute your own custom WPAD configuration file. This can be quite handy if you already did write your own WPAD configuration file, which had been distributed on a separate server, or if you want to use the ISA/TMG provided WPAD configuration file…


Unable to Join a TMG server to the Stand Alone Array

  Introduction: In this scenario I am going to share a very unique issue which I came across while trying to join one of the TMG servers to the Stand alone array. In this case we had two Enterprise Edition TMG servers installed on an Appliance.   Scenario: We had two Enterprise Edition TMG servers…


New in SP2: Improved Error Pages

In TMG 2010 Service Pack 2, we put our focus on bug fixing, in order to improve the overall experience with TMG 2010. However next to pure bug fixing, we also introduced some new features. In this article we’ll provide a quick introduction to the new error pages and will provide a brief overview of…


New in SP2: Site Activity Report

Have you ever been interested in which users visit specific sites on the Internet very often? E.g. which users did browse most on blogs.technet.com last week? In SP2 we added a new report, which allows analyzing the usage of specific sites connected to users in your organization, with a few mouse clicks. In order to…


New in SP2: Kerberos Authentication in Load Balanced Scenarios

In TMG 2010 Service Pack 2, we did put our focus on bug fixing, in order to improve the overall experience with TMG 2010. However next to pure bug fixing, we also introduced some new features. One of these new features introduces the possibility to allow Kerberos Authentication when connecting to TMG in a “High…