A collection of tutorials pertaining to system administration functions of linux servers and environments.
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 […]
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 […]
Introduction Nginx is a high performance web server. ANginx virtual host can be setup to host as many domains as your server can handle. If you have not already please see our guides on Nginx Compile From Source as well as PHP-FPM With PHP7 From Source. These 2 guides will lay the foundation of core services for […]
By default Kernel-Based Virtual Machines(KVM) are not set up to access a serial console on the host using virsh. To enable a serial virsh console, so you can view text-based output on the host machine from the virtual machine you will need to make modifications to both the virtual machine and the physical machine. Enabling […]
Iptables is a firewall service included in CentOS, in CentOS 7 its offered as a alternative firewalld is offered as well. Iptables uses netfilter to filter chains. Essentially you create a chain of filter rules to process how incoming and outgoing data is handled. You can view more about iptables on Netfilter Iptables rule format […]
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 Oracle support as MySQL is. […]
ModSecurity is an open source monitoring system for web applications. It has powerful rule sets that allow you to protect applications from attacks. View the project for more details. It provides a ton of features such as: More than 16,000 specific rules, broken out into the following attack categories: * SQL injection * Cross-site Scripting (XSS) […]