If SSH is the Swiss Army knife of the system administration world, Nmap is a box of dynamite. It's really easy to misuse dynamite and blow your foot off, but it's also a very powerful tool that can do ...

Use nmap –sP host to perform a ping sweep, where host is the individual hostname or IP address you wish to target or a range of addresses by writing in CIDR-style format with /numbits appended to an ...

You may have heard horror stories about how easy it is for evil system crackers to probe potential victims' systems for vulnerabilities using software tools readily available on the Internet. The bad ...

Open source security frameworks help enterprises stay one step ahead of attackers by facilitating penetration testing and vulnerability assessments on wired and wireless networks. Picking just 10 ...

Most people might figure that once you set up your network security-wise, what's done is done, and besides routine updates, ...

10 ways to check ports in Linux to help troubleshoot systems Your email has been sent System and network troubleshooting often involves checking and obtaining information about ports to ensure ...

The Nmap Project just released the Holiday Edition of its open source cross-platform security scanner and network mapper, with several important improvements and bug fixes. New features in Nmap 7.40 ...