The Redirect Catch – Another one…

My previous post about redirect explained a typical loop scenario while implementing the Deny rule on ISA Server. Looks like people just hate typing the /owa (or /exchange) these days, maybe because they already have too many things to memorize (I don’t blame them). Since many users are migrating to Exchange 2007 (and now also…


Traffic incorrectly going to ISA Server 2006 instead of going directly to the server

Introduction   This post is about an interesting issue where a third party application that was configured as service was failing to establish a connection with the destination server because ISA Server was denying the traffic. For this brief description it really sounds like a trivial issue where you just need to create an access…


Uninstalling SQL Server Desktop Engine from ISA Server 2006

1. Introduction   When you install ISA Server 2006 by default the Advanced Logging feature is installed and this installs the Microsoft SQL Server Desktop Engine as shown in the screen below from Add or Remove Programs:     What if you want to uninstall this feature? Why? Well, there are some reasons that you…


The Redirect Catch

Introduction   Recently working a case where customer was trying to implement the approach explained by my friend Tom Shinder on his post “Clever Way to Redirect OWA Users Who Can’t Remember to Include /Exchange in the Path” and it was not working. The approach explained by Tom is valid and works, but there is…


The Firewall Madness

This week I worked in an issue where ISA Server 2006 was stopping answering request and NLB on ISA Server was constantly appearing with the status for “Unavailable”.  The odd thing about this scenario was that every time that the firewall admin changed a rule in one node and forces a synchronization the status of…


Unwanted prompt for authentication while browsing a web site that uses SQL Reporting Services 2008 published by ISA Server 206

Introduction   This post is about an interesting case where the final goal of the system administrator was to allow “all” public users to access some reports that were located/generated by SQL Reporting Services 2008. The regular web site was published by ISA Server and it was working perfectly. ISA Server was not doing any…


IIS on ISA, just one more reason to avoid this type of setup

There are many reasons for me to not enjoy the idea of having IIS on the same box as ISA Server. First and foremost you need to remember that ISA is a Firewall so you shouldn’t use as web server anyway (put your web server behind ISA). Another reason is the resource allocation failure that…


Unable to Install ISA BPA

Today while troubleshooting in ISA Server issue I had to install ISABPA in order to get an ISA Data Packager in repro mode. When the admin was trying to install ISABPA we got the following error:       The user that was trying to execute this setup was the local admin of the ISA…


Troubleshooting Tips for VPN Client Access on ISA Server 2006

1. Introduction   I wrote some time back about an issue on ISA Server related to VPN and on that post I emphasized the following:   “…ISA Server VPN component uses Windows RRAS component and that when the ISA is isolated from the main problem, the troubleshooting line needs to follow RRAS tools and techniques.”…