IIS Worker Process Performance Monitoring Tips

(For IIS 6 and above) Scenario 1: Performance Monitor (Perfmon) has been part of Windows for a long time, but if you have many application pools and only one of them experience high CPU or memory usage issue, how to use Perfmon to track its long term usage trend? Follow this article and ask perfmon…

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SSL Diagnostics for IIS 7.*

We still need good tools to help troubleshoot SSL issues on IIS 7 and IIS 7.5. Then we have two choices, Use The Official SSL Diagnostics Tool for IIS 6 1. Turn on IIS 6 Compatibilities features on IIS 7.*. 2. Install SSL Diagnostics 1.1 for IIS 6. 3. Run SSL Diagnostics tool as administrator….

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Astonishing Tomcat Connector Status

There are a lot of questions on IIS.net forums about running Tomcat Connector on IIS. Sounds like in many cases such configuration will fail. I am not a Tomcat user, so it is not easy to check on the details, but just found this horrible notice published on Apache site under Supported Configuration section, The…

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Commands Supported by FtpWebRequest and IIS FTP

Server Side Commands FTP 7.5 accepts the following FTP commands. 214-The following commands are recognized (* ==>’s unimplemented).     ABOR     ACCT     ADAT *     ALLO     APPE     AUTH     CCC     CDUP     CWD     DELE     ENC *     EPRT     EPSV     FEAT     HELP     HOST     LANG    …

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Database for Web Applications

When you thought the whole world is using multi-core micro-processor, remember that I still have a single-core computer at home. Likewise, we still see legacy web applications who use Access as database. But it is time to upgrade to a real powerful database for web applications, guys. I cannot count how many times I put…

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IIS 7 Dot Tricks, Part II

I would like to have a secure server, so why not block all unknown file extensions? I can easily achieve that by setting allowUnlisted to false in applicationHost.config file on <system.webServer\requestFiltering\fileExtensions> tag. But why I cannot access my site via http://(server_name)/! Why the rule starts to block default document? The single DOT can save you…

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IIS 7 Dot Tricks, Part I

Well, what if I want to serve files without extensions on IIS 7? A small test will give you a 404 error page, as this MIME type is not set up yet. So, why not go and add one rule? What! How can I add such as rule, if the file has no extension! Calm…

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Make IIS 7 Custom Error Pages Similar to Old Versions

Well, the goodness of being a support engineer is that you can receive both “Holy Sh*t” and “Thanks a ton” from the same guy. IIS 7 does introduce a new custom error mode, as documented in the following article, How to Use HTTP Detailed Errors in IIS 7.0 You must pay much attention to digest…

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Installing FTP Server on Windows 7 RC 7100

This posting is provided "AS IS" with no warranties, and confers no rights. It is an interesting question about how to install only FTP server on Win 7 RC. But my research reveals a few interesting points. You can install only FTP server related items in the dialog. OK, if you don’t choose IIS Management…

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IIS 7.5 Warm-Up Feature in Windows 7 RC 7100

This posting is provided "AS IS" with no warranties, and confers no rights. Back in January my colleague Mai-lan blogged about IIS 7.5 new features. One of them is the long-awaiting warm up feature for some users, as he wrote, Support for application pool warm-up for large applications that want to "prime" an application pool…

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