Ever wondered how to reset your root password on a system if you are completely forgotten it? Up until recently, you could simply change the GRUB kernel options to boot…
Category: SysAdmin
Information Security 101: What your business needs to know
The Essentials of Information Security In this presentation we are going to cover the essentials of how to protect your intellectual property, primarily when it relates to information that your business…
Howto: What is Git and Github? How do I use it and why should I care?
Git was made by Linus Torvalds in 2005, originally as version control software to better enable contributors to upload code to the Linux kernel. Git is a version control system. Sometimes…
How to password protect web sites via .htaccess
SKILL LEVEL: SYSADMIN/ADVANCED – TIME: 5-10 MINS Introduction In this tutorial we are going to show you how to protect a web site, or just a folder within a site,…
Pro Tip: For, While and Until Loops
LEVEL: SYSADMIN / TIME: 1-2 min. Here’s some handy quick reference examples to go back to easily if you are needing to use for, while and until loops in your…
How to set the default terminal (or window manager, browser, and much more) in Linux
Ever wondered how your Linux system chooses the default Terminal Emulator, web browser, window manager, text editor, particular version of an app (eg, php5 vs 7/python2.7 vs 3)? Wonder no…
ViM Text Editor 101 Guide
The ViM text editor, Vi Improved, has been around for a very, very long time. However, it remains arguably the most popular text editor amongst Unix users young and old…
What is Docker (and Linux containers?)
A while ago, around the release of the Linux kernel version 3, the concept of namespaces and containerization was introduced through a module called lxc (Linux containers). The idea behind…