Air Gap Network Explained

What is an Air Gap Network? An air gap network is an isolated network that prevents or limits computer systems … Read more

How To Factory Reset Cisco Switch

In this tutorial, I demonstrate how to factory reset a Cisco switch. I will be resetting a Cisco 2960 but these steps will work for other models including routers.

Nmap Port Scanning Guide

In this tutorial, you will learn the basics of port scanning, what are ports, the most popular ports, and the different Nmap port scanning techniques.

Common Ports Cheat Sheet

Top 100 Common Ports (TCP & UDP)

In this guide, I will list the most common TCP & UDP ports and provide you with a downloadable Top 100 Common Ports Cheat Sheet (PDF).