This month marks the 20th anniversary of Nmap, the open-source network mapping tool that became the standard used by many IT professionals, but that can be a bit much if you only need to do general ...

The infamous malware has incorporated the legitimate Masscan tool, which looks for open TCP/IP ports with lightning-fast results. The TrickBot trojan is continuing its bounce-back from an autumn ...

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 ...

A scan can improve the security of your network, but be sure you know the law before you decide to do so. While people usually associate scans with either crackers (malicious hackers) or expensive ...

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 ...

Network Port Scanners A network port scanner is a tool that quickly, easily, and automatically scans through many network devices, determines which TCP or UDP ports are active and logs the results. A ...

The Brave browser will take action against websites that snoop on visitors by scanning their open Internet ports or accessing other network resources that can expose personal information. Starting in ...

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: ...