How to Clean the DNF and APT Caches in Linux
Jack Wallen shows you how to clean the caches for both the DNF and APT package managers, so you can solve package installation problems that arise from corrupt installation metadata.
How to Break a Phone: Common Causes of Phone Damage
by Jack Wallen
One minute you have an indispensable high-tech tool… and the next minute, you have a doorstop. Avoid the cost and inconvenience of a damaged smartphone by following a few best practices.
How to Set Up an SFTP Server on Linux
by Jack Wallen
These steps walk you through the process of setting up an SFTP server on Linux for the secure transfer of files for specialized file transfer-only users.
How to Use the Apache Web Server to Install and Configure a Website
by Jack Wallen
If you’ve never deployed a website with the Apache web server, you’re about to learn how.
How to Run a Command That Requires sudo via SSH
by Jack Wallen
Sudo via SSH lets you run admin commands on a remote server with elevated privileges. Learn the commands with this concise guide.
How to Disable IPv6 on Linux
by Jack Wallen
If network troubleshooting leads you to believe there’s an issue with IPv6, you may need to shut down that protocol on your Linux machines.
How To Set, Change, and Recover Your MySQL Root Password
by Jack Wallen
If you never set, forgot, or change your MySQL password, you’re in luck. This article walks you through these steps, so you’ll never be at a loss for that database root user password.
How To Use SCP (Secure Copy) With SSH Key Authentication
by Jack Wallen
Here’s how to use the secure copy command, in conjunction with ssh key authentication, for an even more secure means of copying files to your remote Linux servers.
How to Scan for IP Addresses on Your Network with Linux
by Jack Wallen
Are you having trouble remembering what IP addresses are in use on your network? Jack Wallen shows you how to discover those addresses with two simple commands.
How to Check SSD Health in Linux
by Jack Wallen
Do you use Linux machines in your data center? If so, it’s probably a good idea to regularly check the health of the SSD drives used on those machines. Here’s how to do it.
How to Create Users and Groups in Linux from the Command Line
by Jack Wallen
Here’s a quick guide to adding users and groups, and then how to add users to groups, all from the command line on the Linux platform.
How to Connect to Linux Samba Shares from Windows
by Jack Wallen
If you’re having trouble figuring out how to connect Windows 10 or 11 to your data center Samba shares, this tutorial offers some simple steps to make this work.
How to Add an SSH Fingerprint to Your known_hosts File in Linux
by Jack Wallen
If your Linux shell scripts are getting tripped up by SSH fingerprints, follow this concise tutorial for an easy solution.
How to delete spam SMS messages and add new blocked numbers on Android
by Jack Wallen
If you’re looking to clear out old spam and blocked SMS messages from Android, Jack Wallen is here to show you how.
How to Delete Spam SMS Messages and Add New Blocked Numbers on Android
by Jack Wallen
If you’re looking to clear out old spam and blocked SMS messages from Android, Jack Wallen is here to show you how.
Google Calendar Tasks vs Events: Key Differences & Uses Explained
by Jack Wallen
Discover the key differences between Google Calendar tasks versus events, and learn how to use each feature effectively in your workflow.
How to Use the Scp Command to Securely Send a File from Your Desktop to a Server
by Jack Wallen
Learn how to use the scp command to transfer files securely with this step-by-step tutorial by expert Jack Wallen.
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If you regularly have to copy files from your desktop to another desktop or server, you might not want to use less sec…
How to Easily Run Commands Inside a Running Docker Container
by Jack Wallen
In Jack Wallen’s How to Make Tech Work tutorial, he shows how using the Docker exec command provides you with more flexibility.
How to Mount Remote Directories with SSH (+Video Tutorial)
by Jack Wallen
Learn how to easily mount remote directories with the help of a more secure SSH tool. Follow along with Jack Wallen in our step-by-step tutorial.
How To Select Which Version of Java to Use in Linux (+ Video Tutorial)
by Jack Wallen
Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.
How to Create and Use a Docker Volume (+ Video Tutorial)
by Jack Wallen
In this How to Make Tech Work tutorial, Jack Wallen shows how to create a Docker volume that can be used for any number of containers.
How to Set Temporary Environment Variables in Linux (+Video Tutorial)
by Jack Wallen
In Jack Wallen’s tutorial for developers, he show how easy it is to set temporary environment variables in Linux.
How to Compare the Contents of Local & Remote Files With the Help of SSH
by Jack Wallen
This is a step-by-step guide on how to compare the contents of local and remote files with the help of SSH. Watch the companion video tutorial by Jack Wallen.
How to Create and Copy SSH Keys with 2 Simple Commands (+Video Tutorial)
by Jack Wallen
SSH keys provide a secure and convenient way to authenticate remote servers. In this step-by-step tutorial, Jack Wallen explains how to easily create and copy SSH keys.
How to Create and Use a Docker Secret From a File (+Video)
by Jack Wallen
In this step-by-step tutorial, learn how to create and use a Docker secret to help keep your data secure.
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