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 ...

I scanned my router and didn’t like what I saw.

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 ...

Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

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 ...