Jack Wallen

Jack Wallen shows you how to assign different ringtones to different SIMs in Android.

Arguably the world’s fastest web browser, Firefox Quantum puts Mozilla back in the race for internet ascendency.

Jack Wallen shows you how to use the open source gpg to sign documents for a cost-effective way to ensure your clients the files you send them are, in fact, from you.

If you’ve experienced a crash of your office suite, you know how crucial backup data can be. Jack Wallen shows how you can locate that folder to a cloud location for even more flexible recovery.

Sometimes a good GUI can make a server even easier. Jack Wallen shows you how to install the GNOME Desktop Environment on Ubuntu Server, and why this might be a good idea.

If you’re about to deploy an NGINX server, you might want to take a few steps to make sure it is secure out of the gate. Jack Wallen offers up five easy tips that can give your security a boost.

The Linux boot process can be easily password protected to prevent just anyone from booting your server. Jack Wallen demonstrates on Ubuntu Server.

To help troubleshoot your Linux datacenter servers, you need the right tools. Jack Wallen introduces you to one such tool, iostat.

Jack Wallen walks you through the process of creating virtual networks with VirtualBox so you can test guest servers and desktops without affecting your company network.

Creating a disk image for a data center server doesn’t have to be challenging. Jack Wallen shows you how easily this can be done with the help of GNOME Disk.

Cacti is one of the most powerful open source front ends for RRDtool. Jack Wallen walks you through the steps to get this up and running, so you can gain access to handy network and system graphics.

If you need to share folders to your network from macOS, Jack Wallen shows you how easy it is on High Sierra.