Jack Wallen

If you’re looking to prevent targeted advertising on your Android device, all you need to do is opt out of ads personalization. Jack Wallen shows you how.

This tutorial shows you how to easily get OpenStack up and running on a Ubuntu Server by way of DevStack.

This guide shows you how to install and use the task manager Google Tasks, and explains why it might be the best task-master on the market.

This must-know Linux command will make troubleshooting considerably easier.

Jack Wallen shows you a nifty trick for easily starting, stopping, pausing, and resuming your VirtualBox virtual machines on a headless Linux server.

Jack Wallen walks you through the process of installing a web-based GUI that makes setting up and managing cron jobs a snap.

Jack Wallen shows you how to set up both two-factor authentication and SSH key authentication for a rock-solid remote login of your Linux servers.

Ever wonder what dependencies a piece of software requires, or what software depends upon a package? If so, look no further than apt-rdepends. Here’s how to use this handy tool.

Once you have CentOS 7 up and running, you’ll want to lock down that server with two-factor authentication. Every administrator should consider enabling this additional layer of security.

This short tutorial walks you through the process of changing a CentOS ethernet interface from DHCP to static–but be prepared to type.

Jack Wallen shows you how to set up your own GitLab server, so you can enjoy the power and flexibility of a LAN (or WAN) based Git repository.

Jack Wallen introduces you to an app that adds serious automation power to the Android platform.