Jack Wallen

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.

If you’re looking to restore your Android device from a Google Drive backup, Jack Wallen walks you through the process and offers up a few tips to make the task painless.

If you’d prefer not to manually edit the /etc/fstab file on your Linux machines, this handy GUI tool can help you with that task.

If you have a particular app that is draining your Android Oreo battery, Jack Wallen shows you how to prevent that from happening.

If your users aren’t able to authenticate to Samba, chances are you forgot one very important step. Jack Wallen shows you what to do to allow users to gain access to those shares.

Jack Wallen shows you how to enable Google’s Find My Device on Android. This feature allows you to find a lost device or prevent data loss from occurring, should your device be stolen.

Jack Wallen shows you how to eke even more speed out of NGINX by making use of static content caching.