Archive for the ‘Crash Course’ Category

We have had great success with Mediawiki running behind Varnish, a proxy / web accelerator. The role of Varnish is to cache as many requests as possible. This helps alleviate resource consumption on the server such as CPU, memory, and disk, which in turn greatly improves performance and browser responsiveness. With Varnish in place, the [...]

November 23, 2009 • Posted in: Crash Course • No Comments

Dig, not to confuse with the social network Digg, is a tool that allows one to trouble shoot or view domain name DNS data. Dig is in the category of essential tools. Just like a voltage tester is an essential tool for an electrician, dig the most important tool for domain administrator. Dig tells the [...]

July 25, 2009 • Tags: , , , • Posted in: Crash Course • 3 Comments

There are times when one needs to automate some of the mundate tasks associated with browsing a certain Web page or accomplishing a certain interactive task online. If the task is repetitive, then there has to be a way to automate it using a computer! Browser tasks are no exception. In this brief guide I’m [...]

The MySQL query cache is used to store data retrieved using SELECT statements. The advantage of the query cache is that subsequent and identical SELECT statement results are retrieved directly from the query cache, which resides in memory. So instead of executing the SELECT statements again and again, the stream of data is pulled from [...]

suPHP is a module that enhances overall server security. It forces the system to execute PHP scripts with user privileges as opposed to Web server privileges. suPHP is a good security measure especially when you expect to host multiple unrelated websites or hosting accounts. It keeps rotten apples away from the good ones! Keep in [...]

May 23, 2009 • Tags: , , , , • Posted in: Crash Course • One Comment
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