Nmap, short for Network Mapper, is a free and open source tool used for vulnerability checking, port scanning and, of course, network mapping. Despite being created back in 1997, Nmap remains the gold ...

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, the “network mapper,” has ...

The most common type of network probe is probably the port scan. A port scan is a method used by intruders to discover the services running on a target machine. The intruder can then plan an attack on ...

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 ...

With the sheer number of devices on my network, it's all too often that even I forget everything I’ve connected to it. Now, most of us rely on our router’s built-in analytics or basic scanning tools ...

If you're looking for a way to discover which ports are standing wide open on network machines, read about a powerful cross-platform solution that will do the trick. Editor’s note on June 4, 2015: ...

A good diagnostic tool for any sysadmin is a port scanner to ensure a firewall is working as intended to open or close ports. When you want a quick and dirty scanning tool, there are some great free ...