Category: E-Learning

Setup UFW Firewall on Ubuntu and Debian

A correctly functioning firewall is one of the most crucial aspects of the overall Linux system security. By default, Debian and Ubuntu distribution comes with a firewall configuration tool called UFW (Uncomplicated Firewall), is a most popular and easy-to-use command line tool for configuring and managing a firewall on Ubuntu and Debian distributions. In this

CCleaner Alternatives for Linux

A common category of software you will find on many Windows PCs are system optimizers and cleaners. One such application is CCleaner, a powerful and popular Windows PC cleaner which scans for and deletes unwanted files, private information such as browsing cache and history, freeing up space and guarding your privacy and more. Unfortunately, there

Linux pstree Command

Since every process (except the very first one) in a Linux system has a parent, it sometimes makes things easier to understand if all processes are displayed in a tree structure. You’ll be glad to know there exists a command line utility – dubbed pstree – that displays a tree of processes. In this tutorial,

Guide To Cron Jobs

Cron is one of the most useful utility that you can find in any Unix-like operating system. It is used to schedule commands at a specific time. These scheduled commands or tasks are known as “Cron Jobs”. Cron is generally used for running scheduled backups, monitoring disk space, deleting files (for example log files) periodically