The Lucene project management committee has announced the availability of Apache Lucene 3.5.0 and Apache Solr 3.5.0. Lucene is a high-performance, full-featured text search library. Solr is a standalone search server that uses Lucene at its core for indexing and search.

Apache logs all requests in its log file access_log. But sometimes we don’t need it to log all the requests, for example we don’t want the requests from a certain IP to be logged, or we don’t need to log all the requests to image files. This guide shows how we can use Apache’s [...]

How we can limit the CPU usage of a sepcified process with the CPUlimit utility? Cpulimit is a simple program that attempts to limit the CPU usage of a process. It’s expressed in percentage, not in cpu time. This is useful to control batch jobs, when you don’t want them to eat too much CPU [...]

PHP is glue. It is the glue used to build cool web applications by sticking dozens of 3rd-party libraries together and making it all appear as one coherent entity through an intuitive and easy to learn language interface. The flexibility and power of PHP relies on the stability and robustness of the [...]

The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. These environment variables can be used by other parts of the server to make decisions about actions to be taken. The SetEnvIf directive defines [...]