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, ...

IP tools, when used properly, can help system builders tackle set-up and configuration chores, speed troubleshooting and problems resolution, and address all kinds of security issues and concerns. A ...

A port is a numeric identifier for software that runs on a computer, like Web server or email server software. When a port is open, it's accepting connections from the outside world. It's not uncommon ...

Vulnerability assessments are a crucial aspect of our overall information security program. We use Nessus, a port scanner that’s available free on the Internet, to conduct assessments of our ...

A number of weeks ago, I provided and described a script that uses nmap to quickly scan a system or subnet for activity on a particular port. Useful for detecting, say, web servers or Oracle ...