Today I noticed we were getting an increasing amount of spam on one of our form pages. I was curious to see if all of the user IP addresses were the same (in which case I’d just add them to … Read more »
Microsoft’s IIS SMTP service won’t log usernames even when SMTP-AUTH is enabled and clients are all authenticating. So, what happens if someone starts abusing the SMTP service (or you perhaps have a runaway process...
A client was getting errors when using PUT/POST/DELETE verbs on their web application recently. The errors he was seeing were: After some troubleshooting the error was isolated to the fact that WebDav was installed on the server...
URL Scan has been a useful tool since Windows Server 2003, and continues to be used on many web server deployments. Did you know though that IIS7 includes a feature named Request Filtering that handles the same functionality as...
Orchard doesn’t seem to like anything in it’s web root except for it’s own content. Try it out – create a folder (I created /TestContent/) and then put a test from there (I created test.html) and try to...
Google’s various page speed testing tools seem to prefer browser caching set with at least a one week expiration set. That makes great sense to me! Setting a browser cache expiration tells the visitor’s browser that...
Tweet Microsoft’s Log Parser is an awesome tool that justifies knowledge, if not even regular use, by both system administrators and web users alike. From the download site: “Log parser is a powerful, versatile tool...
Tweet For very good reasons, not all extensions are recognized by IIS by default and may return a 404 error when trying to access them from your site. If you have need to add more extensions to be “allowed” –...
This is an older article (2006) but still an excellent resource for anyone who has to do deep troubleshooting and research to determine the cause of a crash in a .NET application. With these tips, and perhaps just a little luck...
When attempting to run an application that uses certain Telerik controls, you may run into the error below: System.InvalidOperationException: '~/Telerik.Web.UI.WebResource.axd' is missing in web.config. RadStyleSheetManager requires...
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