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(Network MAPper) A free, open source security scanner for auditing networks that runs on most platforms and written by Fyodor (a person). When aimed at a particular host, Nmap can determine which ports are open, which OS and version is running, what services are offered and what firewalls are used. For more information, visit www.insecure.org/nmap.
| Nmap Security Scanner | |
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| Developer: | Fyodor |
|---|---|
| Latest release: | 4.20 / August 29, 2007 |
| Preview release: | 4.21ALPHA4 / ?, 2007 |
| OS: | Cross-platform |
| Platform: | CLI, |
| Genre: | Computer security, Network management |
| License: | GNU General Public License |
| Website: | http://insecure.org/ |
Nmap is a free security scanner written by Fyodor. It is used to evaluate the security of computers, and to discover services or servers on a computer network.
Nmap features include:
Typical uses of Nmap:
Nmap runs on Unix-like systems such as Linux, Solaris, Mac OS X, and BSD, and also on Microsoft Windows and AmigaOS. [5].
The official GUI frontend is nmapfe, originally written by Zach Smith, and integrated into Nmap since version 2.2 [6].
Various web-based interfaces are available for controlling Nmap from a web browser. Examples are LOCALSCAN [7], nmap-web [8], and Nmap-CGI [9].
NMapW [10] is an up-to-date Microsoft Windows GUI interface for Nmap written by Syhunt.
NMapWin [11] is another Win32 GUI interface for Nmap. It has not, however, been updated since v1.4.0 was released in June 2003.
A full-featured cross-platform GUI for Nmap is UMIT by Adriano Monteiro Marques.
Nmap was first published in September 1997, as an article in Phrack Magazine with source-code included [12]
Further development included better algorithms for determining which services were running [13], code rewrites (C to [[C++]]), additional scan types and protocol support (e.g. IPv6)
Nmap reached version 3.5 in February 2004, and version 4.0 in January 2006, with hundreds of improvements.
Changes in each release are recorded in the Nmap Changelog.
Like most tools used in computer security, Nmap can be used for Black hat hacking [14], or attempting to gain unauthorized access to computer systems. It would typically be used to discover open ports which are likely to be running vulnerable services, in preparation for attacking those services with another program [15].
System administrators often use Nmap to search for unauthorized servers on their network, or for computers which don't meet the organization's minimum level of security [16].
Nmap is often confused with host vulnerability assessment tools such as Nessus, which go further in their exploration of a target by testing for common vulnerabilities in the open ports found.
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 | Computer Desktop Encyclopedia. THIS COPYRIGHTED DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher. © 1981-2008 Computer Language Company Inc. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nmap". Read more |
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