Crontab – Quick Reference
Setting up cron jobs in Unix, Solaris & Linux Cron is a Unix, Solaris, Linux utility that allows tasks to be automatically run in the background at regular intervals by…
How to enable/disable the firewall on Ubuntu 20.04 LTS
In this tutorial, you will learn: The default Ubuntu firewall is ufw, with is short for “uncomplicated firewall.” Ufw is a frontend for the typical Linux iptables commands, but it…
How To Install “net-tools” Package on Ubuntu / Debian
Package Description The NET-3 networking toolkit Quick Install Instructions of net-tools on Ubuntu Server. It’s Super Easy! Simply Copy (CTL-C) to copy the command and paste (CTL-V) it into your…
How to Find Any Website’s Vulnerabilities with Nikto
Before attacking any website, it’s critical to do good reconnaissance. A few minutes of recon can save you hours on a hack. Simply trying various attacks without first finding which…
How to correctly add a path to PATH?
The simple stuff Depending on whether you want to add ~/opt/bin at the end (to be searched after all other directories, in case there is a program by the same…
Linux/Uniux Shells
The shell can be defined as a command interpreter within an operating system like Linux/GNU or Unix. It is a program that runs other programs. The shell facilitates every computer…