how to 🪄 Rename or Change User Name and UID on Linux Systems. You might have come across a situation where you want to rename a user name in Linux system, for whatever reasons. In this short tutorial, we will be discussing how to change user name (rename user name) or UID under a Linux operating system using command line tools.
linux 🍹 The famous SUDO command on Linux Systems. Sudo stands for SuperUser DO and it allows you to run programs with the security privileges of another user (by default, as the superuser or the root user). It prompts you for your personal password and confirms your request to execute a command by checking a file, called sudoers.
how to 🪄 How to Configure a Firewall with UFW on Ubuntu Server. One of the first lines of defense in securing your server would probably a good functioning firewall, don't you think❓😎
SSH 🕳 What the heck is SSH? Secure Shell, sometimes referred to as Secure Socket Shell, is a protocol which allows you to connect securely to a remote computer or a server by using a text-based interface.
shell What is "the Unix Shell"- Bash, Fish, Ksh, Tcsh, Zsh. Simply put, the shell is a program that takes commands from the keyboard and gives them to the operating system to perform.
linux 🍹 Is Linux an Operating System or a Kernel? One of the most likely questions you will find in most tech forums is whether Linux is an operating system or a Kernel. Even for some proficient Linux users, this question can become quite confusing.
linux 🍹 What is Linux Kernel (update)? Every operating system uses a kernel in one form or the other. Without the kernel, it is almost impossible to have a working operating system. In general terms, the kernel is a software code that serves as a layer between the hardware and main programs that run on a computer.