Ubuntu 22.04 GUI installation
install a desktop environment on Ubuntu 22.04 Jammy Jellyfish, whether you already have a GUI installed and wish to use a different desktop environment, or if you are only using…
Linux Ethtool Command Installation and Usage Guide
Linux ‘ethtool’ command is a powerful tool that can help you tune your network interface for optimal performance, but it can seem intimidating to install and use, especially for beginners.…
How to send an e-mail from CLI
How to send an e-mail from Command Line in Debian (and most other Linux OS). The result (arrival of e-mail) is instant..
Configuring a Cisco Router
In order to help us complete the basic configuration of our Cisco routers, this lesson introduces the use of configuration modes, and how they interact to help us configure the…
renew Letsencrypt certificate with certbot
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A Quick Intro to Jails
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