SysAdmin

Deleting a file in Linux or any other OS does not actually remove the data from the drive. The best practice is to use the shred command to permanently destroy sensitive data so that it cannot be recovered. Learn how to use the shred command in this simple tutorial.

Learn how to improve your network speed by setting up a Raspberry Pi as a DNS server in this step-by-step guide.

Helm is a package manager that features all the necessary commands for easy app management in a Kubernetes cluster. This tutorial covers all the important Helm operations and provides examples to help you learn its syntax and features.

The Telnet client is not the best cybersecurity practice, however it is very useful for port troubleshooting. Learn how to turn on the Telnet client feature and check for open ports on Windows.

The vmstat command is a Linux monitoring utility used to see various system statistics and to diagnose performance bottleneck issues. Learn how to use the command in this simple tutorial with examples for each available option.

High temperatures can damage the sensitive components in your machine. Read our tutorial to learn how to monitor CPU, GPU and HDD temperatures on machines running Linux, by using different utilities.

Snap allows you to install apps to your system in a contained manner, keeping their dependencies within the snap package. This tutorial shows how to install snaps, modify them, and configure the options they offer.

The usermod command modifies user account details: username, password, home directory location, shell, and more. This tutorial explains and provides examples for the use of the command, along with its options.

TensorFlow can be installed in many ways and there are many different versions and builds available. Learn how to check which version is installed on your machine.

The who command belongs to the GNU coreutils package in Linux. Its main purpose is to provide system administrators with information about the users who are currently logged into the system. This tutorial provides examples for the use of the command along with its options.