Mod_Expires Configuration In Apache

by LinuxAdmin.io - October 9, 20172

mod_expires is a module which runs on the Apache web server. It allows manipulation of the cache control headers to leverage browser caching. What this means more specifically is that you will be able to set values on how long the image will be stored by the browser when a

How To Convert Images To WebP Format

by LinuxAdmin.io - September 18, 20170

WebP is a new image format that provides a lossless and lossy compression on PNG and JPEG file types. It was developed by google resulting in up to 80% smaller image size. It is supported by Google Chrome and Opera. You can use Nginx and Apache to determine if this

Galera Cluster MariaDB Configuration On CentOS 7

by LinuxAdmin.io - August 9, 2017August 12, 20172

Galera cluster is a true multi-master MySQL cluster using synchronous replication. It allows for any of the nodes to be used as a master or all of them as well as providing automatic node joining and node removal. The multi-master configuration is very different from the typical master-slave configuration

Install mod_deflate on Apache

by LinuxAdmin.io - June 26, 2017August 6, 20170

Mod_deflate is an apache module. Prior to having mod_deflate it was mod_gzip. Post apache 2.0 mod_deflate is used, it provides a slightly better compression than mod_gzip. It allows the size of certain file types to be compressed which in-turn allows clients to be able to download these files faster. This

Nginx Browser Caching

by LinuxAdmin.io - June 7, 2017August 6, 20170

You can use Nginx to Set cache expiration times to leverage browser caching for the user requesting specific file types. This will cause the browser to retain the downloaded image until the length of the expires header. This will cause faster page time loads on each subsequent request performed by

Nginx Caching for WordPress using fastcgi_cache

by LinuxAdmin.io - May 29, 2017August 6, 20170

Caching PHP requests can dramatically reduce server resources per request and make the pages load time decrease substantially. In this tutorial we are going to utilize the fastcgi_cache functions in nginx to cache PHP requests making it. This tutorial assumes you have the following already completed on your server: Nginx installed, if

Install The ngx_cache_purge Module In Nginx

by LinuxAdmin.io - May 28, 2017August 6, 20172

Ngx_cache_purge is a module which will allow the fastcgi_cache, proxy, SCGI and uWSGI caches to have content purged from them. The caches allow precompiled code to be served as opposed to running a new version each time. This can greatly reduce the amount of processing power per page request. This

Nginx Load Balancing

by LinuxAdmin.io - May 25, 2017August 6, 20171

Nginx can be used as a load balancer to multiple back-end web servers using the proxy functions. This guide will cover the basics of configuring the proxy server to pull from the other web servers. It assumes you already have completed the initial install of Nginx. If you do not

MariaDB 10 Upgrade From MySQL 5.1 on CentOS 6

by LinuxAdmin.io - May 5, 2017August 6, 20170

MariaDB is a fork of MySQL that was created from some of the original developers of mysql after MySQL was purchased by Oracle. Upgrading to MariaDB offers a range of benefits and is a relatively simple upgrade. It has more active development then MySQL currently and is just developed by

Setup and Optimize Zend OpCache

by LinuxAdmin.io - April 23, 2017August 6, 20170

Zend OPCache: Zend OpCache is a caching engine that comes with PHP by default in later releases (PHP 5.5 and above). It is a caching engine that stores precompiled php code in memory which ultimately results in performance increase as the code does not have to be fully recompiled on each new