While there are many monitoring tools available to network administrators for port scanning and network mapping, Nmap is the de facto standard. Here's why.

While nmap is generally used to probe business networks and perform security reviews, the tool can also provide interesting details on your systems and devices at home.

Nmap in Action Here we will run a series of port scans on a target web server, making note of the versions and operating systems. Remember, reconnaissance and patience is key to hacking.