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Centos 29

A collection of tutorials to manage CentOS and Redhat based systems, including performance tuning, installation, administration, and troubleshooting.

 

Nginx Browser Caching

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 the end user. Prerequisites: You […]

5 years ago More
 

Piwik Analytics on Nginx

Piwik is a open source web site analytics software. It is free and opensource and can be used to track Nginx requests as well as Apache. This guide covers the Nginx configuration and installation of Pikwik. You can read more about Piwik here. If you do not already have Nginx and PHP-PFM installed, please see […]

5 years ago 8 More
 

Blocking Bad UserAgents with ModSecurity and Fail2ban

Many bots crawl websites that do nothing to generate positive traffic for the site. They just use up available resources and bandwidth of the server. You can reduce this drastically by implementing blocking using ModSecurity to detect the bad agents and then fail2ban to block them in iptables for a period of time.  This guide […]

5 years ago 2 More
 

Nginx Caching for WordPress using fastcgi_cache

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 you do not […]

5 years ago More
 

Install The ngx_cache_purge Module In Nginx

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 specific module allows that cached […]

5 years ago 8 More
 

Nginx Load Balancing

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 already have a install please […]

5 years ago 1 More
 

How To Configure A Nginx Reverse Proxy With Apache

Nginx can as a reverse proxy to Apache. Nginx does best at serving static content extremely fast whereas Apache can process dynamic content and use  all of the various Apache modules and .htaccess that are typically the web standard of hosting. This guide assumes you already have a Apache installation and would like to add […]

5 years ago More
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