port-scanning.md 1.2 KB


title: Introduction to Hacking - Port scanning show-content: 1

layout: console

The point of port scanning a server is to detected its open ports and the port's listening services. Once a hacker knows all the vulnerabilities they might have and exploit them to take control of your website. In the port scannign example, we will use the most popular port scanner: Nmap. The Nmap Security Scanner is available for Linux and other operating systems. To install it run the following commands:

If you are running an Arch-based distribution:

sudo pacman -S nmap

If you are running a Debian-based distribution:

sudo apt install nmap

If you are running Void linux;

sudo xbps-install nmap

If you are running Gentoo:

emerge nmap

To perform a fast scan in Nmap execute the following command:

nmap -F <target url>

And the result of a fast scan might look like the following:

PORT     STATE          SERVICE
80/tcp   open           http
443/tcp  open           https

There a lot more types of scans and interesting functionalities, learning how to properly use nmap is completely worth your time.

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