Remote OS Fingerprinting is becoming more and more important, not only for security pen-testers,but for the black-hat. Just because Nmap is getting popularity as the tool for guessing which OS is running in a remote system, some security tools have been developed to fake Nmap in its OS Fingerprinting purpose.

Nmap (“Network Mapper”) is an open source tool for network scanning and security auditing. This intro gives you some basic and interesting Nmap usages with examples on a GNU/Linux system.

Use nmap to discover network elements and to scan ports on those network elements, learn here how to install nmap GUI front ends, and how to use them.

The new release of Nmap (free software network port scanner) is here. A primary focus of this release is the Nmap Scripting Engine, which has allowed Nmap to expand up the protocol stack and take network discovery to the next level.

Nmap is a utility for network exploration or security auditing. It supports ping scanning (determine which hosts are up), many port scanning techniques, version detection (determine service protocols and application versions listening behind ports), and TCP/IP fingerprinting (remote host OS or device identification).

Happy new year, everyone. I'm happy to announce Nmap 5.20--our first stable Nmap release since 5.00 last July! It offers more than 150 significant improvements.

Zenmap is the official graphical user interface (GUI) for the Nmap Security Scanner. It is a multi-platform, free and open-source application designed to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users. The purpose of Zenmap is not to replace Nmap.

In a surprise this morning, Fyodor announces the immediate availability of Nmap v5.00

You have built a rock solid firewall, tested it with nmap scanning for ports that were open, locked down SSH with port knocking, restricted outgoing ports with iptables, setup psad to block attacks, and tcp_wrappers to limit access so you are set right? Well, not exactly....