Install Varnish Cache on CentOS 6.7

Install Varnish Cache on CentOS 6.7

How to install and configure Varnish Cache on CentOS. Varnish is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Because Varnish Cache is really, really fast, web applications like WordPress, Drupal and Joomla can greatly benefit from Varnish Cache.
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Install Elasticsearch on CentOS 6.7

Elasticsearch is a highly scalable open-source full-text search and analytics engine. It allows you to store, search, and analyze big volumes of data quickly and in near real time. In this article we'll go over the steps to install Elasticsearch on CentOS 6.7.
get current PHP realpath_cache_size value

How to set a good PHP realpath_cache_size

Learn how to set a good PHP realpath_cache_size and optimize your PHP performance. . Increasing realpath_cache_size might greatly improve PHP performance, as PHP states: "this value should be increased on systems where PHP opens many files." Setting a correct value for PHP realpath_cache_size can greatly improve PHP performance and optimize WordPress - and other CMS's - websites.

How to: Test MySQL database connectivity in ASP.NET, PHP, ASP

Test MySQL database connectivity in ASP.NET, PHP, ASP; Simple MySQL connection test from your website with ASP.NET, PHP & classic ASP. Whenever you need a MySQL connectivity test from a website or server, it's handy to have various test scripts nearby. Whether it is because you are setting up a new website or you have just installed a new server and are running your tests.