How to Shutdown or Reboot Debian 10

Debian 10 Shutdown/Poweroff and Reboot/Restart

This small tutorial shows two ways of shutting down or rebooting a Debian 10 server or desktop using the terminal. The same commands will work for Debian 11 too. Using shutdown command Open the terminal and execute the following command to shut down the machine, shutdown –poweroff This will shut down the machine. If you … Read more

How to Generate a Strong Pre-shared Key on Linux

Secure pre-shared key

A PSK, or pre-shared key, is a password made up of a random string of characters while encrypting and decrypting data. As the name implies, both parties engaged in the cryptographic process are aware of the key in advance, as it is required not only for decryption but also for encrypting the data. Hackers can’t … Read more

Control Screen Brightness from Ubuntu Terminal

Ubuntu Shell Screen Brightness

If you use your Ubuntu system at different times of the day, you may also need to change the brightness of your screen over and over again to make it easier on your eyes. Although there are ways to do this through the user interface, I mainly work at the command line and looked for … Read more

8 Ways To Get Help On The Linux Shell

8 ways to get help on the Linux shell

Whenever we use new software or a new operating system, the interface and the environment we are used to change as well. Sometimes the new environment is user-friendly and we don’t find it difficult to deal with. But sometimes the new environment is so complex and foreign to us that we are completely clueless. In … Read more

How to setup the JAVA_HOME path in Debian 11

Java is a very popular programming language that is used in desktop software development, mobile applications, business applications, and so on. It requires the installation of the Java Runtime Environment (JRE) and Java Development Kit (JDK) in order to develop and run Java applications. After installation of JRE and JDK, you also need to set … Read more

How to Make a User an Administrator in Debian 11

Debian Administrator User

If you have multiple user accounts in your system, it is not a good idea to give administrative privileges to all of them. It is always safe to limit the privileges of certain accounts to prevent unauthorized and potentially harmful changes to the system. However, if you want to assign administrative privileges to certain users, … Read more