WCF Service error: "This collection already contains an address with scheme http."
"This collection already contains an address with scheme http. There can be at most one address per scheme in this collection." is a Windows Communication Foundation (WCF) error message indicating you are trying to add an already existing binding. By default the web service listens to all in IIS configured host headers. A host header is the website address, for example example.com and www.example.com. If this is not correctly added to the web.config file, the following error is thrown:
Umbraco CMS admin password reset
If you forgot your Umbraco admin password, use the following SQL query to reset your Umbraco admin password in SQL Server Management Studio (SSMS) or MySQL...
MySQL query caching using PHP/Zend_Cache
By using the Cache.php PHP class of the Zend Framework, you can relatively easy cache MySQL query results to disk. This ensures faster consecutive results and speeds up execution. In this context, caching means: execute a MySQL query once and save the result in a temporary file. For every time that same query is executed, you can simply use the result stored in your disk cache file, as long as the database hasn't changed. Often it is faster to save this on the web server than having it to redo the query every time.