Nmap is an essential tool for anyone who's serious about network security. It can be installed on any Linux distribution.

Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf ...

Knowing what services are running on your systems, and being able to identify if and when any of those services change, is the first step in securing your netwsork. Many tools can accomplish this, but ...

This article, List open ports and listening services, originally appeared on TechRepublic.com. One of the biggest headaches for network administrators is open ports on devices. Unless you manually ...