Using CentOS CR (Continuous Release) Repo

CentOS (Community Enterprise Operating System) is a Linux distribution that attempts to provide free, enterprise-class, community-supported computing platform functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL). CentOS is run by volunteers who work directly with Red Hat’s RPM source files and pushing them to CentOS for release. At times the project will fall behind […]

Strip Down Apache to Improve Performance & Memory Efficiency

Can you believe that its been 5 years since the release of Apache 2.4?! Still, most Apache based web servers continue to run Apache version 2.2 or even 2.0. This is understandable for the same reasons why Apache web servers are still used more than Nginx… compatibility, official support and features. If you haven’t replaced Apache […]

PHP performance: oPcache Control Panels

OPcache is a PHP extension which improves PHP performance by storing precompiled script bytecode in shared memory, thereby removing the need for PHP to load and parse scripts on each request. The extension is built-in for PHP 5.5+ …but, if you are looking to improve PHP performance, the first step should be to use PHP 7+ which […]

When To Use Amazon EC2 t1.Micro Instances

Update Aug 11th 2017: The t1.micro is a previous generation instance and it has been replaced by the t2.micro, which has a better performance profile. See T2 Instances. Lets take a look at how Amazon EC2 t1.micro instances work so that we can understand when to use them. By the end of reading this you should have a clear view of the […]

Kali Linux non-root install w/ screenshots

NOTE: If you are here for a penetration testing install guide of Kali Linux, this guide is NOT for you. The default install of Kali Linux contains many tools which can only run with root privilege. You should instead follow Kali’s default install method for root install and understand the risks. This guide will walk you […]