IIS – site offline but handshake phase done properly

Today I want to share with you an interesting scenario introduced by one of my customers. Let me give you a picture about where we are: We have a Web Server with two ip addresses configured on top of it. Two web sites are hosted on mentioned Web Server. Let’s call them site1 and site2….

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404 File not found due to FileUtil.CheckSuspiciousPhysicalPath

As everyone of you knows, 404 means file not found! A complete reference is available here: http://support.microsoft.com/kb/943891/en-gb. Well, there is a scenario where IIS provides back an HTTP 404 even if your file is there! Unbelievable.. Let us have a look to it. First of all, proceed configuring web server to provide back this code,…

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How to monitor Application Request Routing via PowerShell

Dear readers, Welcome back. Today I want to discuss with you how to monitor Application Request Routing via PowerShell script. In case that you are wondering what ARR is, probably you have to give a look at following link: http://www.iis.net/downloads/microsoft/application-request-routing Of course ARR has some tools and performance counters available to monitor its status, like:…

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How many web applications per application pool

Many times during my work activities, I figure out wrong configurations on web servers. Today, I want to discuss here this topic: web applications cannot be managed and configured like traditional windows applications. When we think to desktop applications like notepad, we know that each time we run it, O.S. defines a new process (notepad.exe…

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StackOverflow Exception – wrong implementation or leak of resources

During this week, I had the opportunity to analyze a very interesting trouble and I want to share it with all of you. I do not want to go too much in deep about what occurred on the real scenario otherwise you could consider this post very long and boring. My idea is to share…

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IIS7’s performance slower than IIS6

  As Support Engineer, I have the possibility to work with many customers around the world with different configurations. A couple of mounts ago, I was surprised to work with one of them who sustained that after the migration to IIS7 from IIS6, the IIS7’s performance was worse than IIS6. The servers’ goal was the…

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