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Being developer; I love Fiddler...

Is there similar tool/utility (preferably free) for server side tracing the web requests and the responses? I would love some utility which is fiddler like, i-e on start up you select particular IIS web site and it start tracing the requests / response (full content) for debugging purposes.

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The apps I want to debug are ASP.NET; some ASP.NET Filter that logs all the requests / responses (raw) and some utility that shows it real time (Fiddler like) would be great! It would be for occassional purposes; like some ASMX / WCF is hosted and someone is trying to use it from Silverlight / PHP client and getting error...with such tool in place we can debug the issues like request is not well formatted; some required header is not being provided etc – Khurram Aziz Mar 24 '10 at 13:23

You could look for ETW Tracing.. I really love it What is the best IIS tracing tool you have used?

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I've used this little (commercial, I think there is a X days trial period) tool in the past: IIS Tracer. It's a real time IIS monitor. That means you can watch in real-time or log state of each HTTP request, incoming/outgoing bytes, HTTP headers etc.

The tool itself will not win a design price, but it's pretty effective. Also, don't be scared when you see go the website of that product, the pages there are almost plain text.

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To track requests the web server is making: You can just adjust defaultProxy settings inside web.config and proxy all your requests to Fiddler, either locally on the server or to a remote instance of Fiddler. Refer to defaultProxy documentation.

To track requests to the web server and their responses: Fiddler reverse proxy is the way to go for debugging.

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