Category: Ubuntu Linux

This tutorial provides guidance on how to list groups on Ubuntu 18.04 | 16.04 Linux systems. Ubuntu, an open-source Linux system, includes primary and secondary groups that users can join. The primary group is automatically created when a user account is established, while secondary groups enable additional access to resources. The tutorial demonstrates how to…

The article provides a tutorial on using the chgrp command in a Linux system, particularly the Ubuntu OS, to change group ownership of files and folders. Further, it highlights the use of different chgrp options such as -c, –changes or -R, –recursive. Examples demonstrate how to apply these commands in real scenarios.

The tutorial guides on how to identify all ports in use or listening ports on Ubuntu Linux systems, crucial for server or web administrators. The services listen to assigned ports for communication and if unused, these remain open leading to possible exploitation. Ubuntu has commands to scan servers for open ports, helping administrators to identify,…

This tutorial explains how to create and manage symlinks on Ubuntu Linux systems. Symlinks are file references, which let developers avoid file restructuring. The tutorial demonstrates the use of the ‘ln’ command to create a symlink and the ‘symlinks -v’ command to find symlinks in a directory.