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 ...

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 ...

I'm looking for an online port scanner that lets me give it an IP and list of ports, and tells me if ports are filtered or closed. (like how nmap mentions filtered or closed) GRC shields up refers to ...

To most, the term "internet port scanning" might sound like the kind of nonsensical technobabble you would hear on an episode of "NCIS." However, port scanning is a very real and widely used method, ...