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HTTP Compression – reason codes in etw traces

In one of my earlier posts , I discussed one of the reasons for compression failure and how we identified it using ETW traces and resolved it. Below are the list of other reason codes for your reference. NO_ACCEPT_ENCODING The HTTP request did not contain Read More...
Posted Sunday, March 01, 2009 2:54 AM by Sudeep Gopalakrishnan | 0 Comments
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IIS Compression failure - compression_disabled Status

Recently, we ran into a problem where static or dynamic compression would not work on a few websites, specially SharePoint sites, but works on other sites. I always use our software tools and take a data driven approach for troubleshooting any kind of Read More...
Posted Monday, February 23, 2009 11:03 PM by Sudeep Gopalakrishnan | 0 Comments
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Windows 2008 AND IISRESET.EXE

IISreset.exe is a magical command that resolves many problems! Err… well, yeah that command restarts all IIS related processes and thus essentially running it cleans up all the “mess”. So is there anything special about IISReset.exe in Windows 2008? Yes Read More...
Posted Saturday, February 14, 2009 10:30 PM by Sudeep Gopalakrishnan | 0 Comments
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IIS 7.0 - HTTP 502.2 - Bad Gateway

Recently I got a couple of support cases where customers who migrated their CGI applications over to IIS 7.0 on Windows Server 2008 ran into the following error: ERROR: HTTP Error 502.2 - Bad Gateway The specified CGI application misbehaved by not returning Read More...
Posted Sunday, February 08, 2009 3:31 AM by Sudeep Gopalakrishnan | 0 Comments
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Attachment(s): SampleCode.txt

IIS 7 and Kernel mode authentication

IIS 7.0 available with Windows Server 2008 is the new Application server platform from Microsoft. Just like its predecessor, it introduces various enhancements. One of the enhancements available is that authentication is now performed in kernel mode by Read More...
Posted Sunday, February 08, 2009 2:38 AM by Sudeep Gopalakrishnan | 2 Comments
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Working with HTTP.SYS or Kernel Mode Caching in Internet Information Services 6.0

Caching has always been one of my favorite areas. Although, I never attempted to look much into how various settings in IIS or HTTP affect caching, I always had it on my to do list which was pushed down the priority list for several months. N ow, that Read More...
Posted Friday, November 16, 2007 9:48 AM by Sudeep Gopalakrishnan | 2 Comments
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IIS not serving pages - Page cannot be displayed

Being part of the IIS/ASP.net team, you always have a competitive advantage in troubleshooting if you know how to troubleshoot related technologies that are involved with the web server. For example Security Protocols like NTLM and Kerberos. In my 3+ Read More...
Posted Tuesday, September 11, 2007 5:06 AM by Sudeep Gopalakrishnan | 4 Comments
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