What is N-Map?? | N-Map Explained in Detail

In this article, we will learn about the N-Map tool. What it is ?? How we can use it?? Everything about N-Map.

Let's continue..

What is N-Map??

    N-Map is short of Network Mapper. Basically, N-Map is a Foot-Printing Tool. It is the essential tool for the Ethical Hackers or we can say that is it the first step of hacking where we get information about the targeted IP of any system or organization. It is a free, open-source tool to find the vulnerabilities and network discovery. You can download this free tool on the official site of N-map i.e., namp.org. 

The Network Administrators or Ethical Hackers uses N-Map to identify the running devices on the system, for discovering host that are available and what services they are providing, finding the open ports and detecting security risks. 

We can use N-Map to monitor single hosts as well as vast networks that encompasses thousands of devices and multiple subnets. 

From many years N-Map has evolved so much and it is extremely flexible, at heart's it is a port-scan tool, that gathers information by sending the raw packets to system ports. Then it wait for the responses and determines whether the ports are available, open, closed or filter in some ways. 

Characteristics of N-Map:

1. Flexible: Supports a wide range of advanced mapping techniques from networks full of IP filters, firewalls, routers, and other obstacles. This includes many hole scanning methods (both TCP and UDP), OS detection, version detection, ping sweep, and more.
2. Powerful: N-map is used to scan large networks of thousands of devices.
3. Portable: Many operating systems are supported, including Linux, Microsoft Windows, FreeBSD, OpenBSD, Solaris, IRIX, Mac OS X, HP-UX, NetBSD, I -Sun OS, Amiga, and more.
4. Easy: Although N-map offers a rich set of advanced features for power users, you can start as "n-map -v -A target-host". You can use any interface either the Graphical User Interface or Client Line Interface according to your convenience. Binary numbers are available for those who do not wish to include N-map in the source. 
5. Free: The main goal of n-map project is to make the Internet more secure and reliable and to provide administrators/auditors/hackers with an advanced tool for exploring their networks. N-map is available for free , and also comes with full source code that you can modify and redistribute as well under the terms of the license.
6. Well Documented: Great effort is put into full and recent man pages, white papers, tutorials, and the whole book!
7. Supported: Although N-map arrives without warranty, it is well supported by the live community of engineers and users. Most of these connections occur in the N-map email list. Most of the bug reports and questions should be sent to the n-map dev list, but only after you read the guidelines.

How to use N-map?

    There are a variety of free network monitoring tools and free open source scanners available for network administrators and security testers. What makes N-map stand out as an IT tool and network managers need to know that it is flexible and flexible. Although the core of N-map performance is hole scanning, it allows for a variety of related skills including:

• Network map: N-map can identify network devices (also called host acquisition), including servers, servers and switches, and how they are physically connected.

• OS Discovery: N-map can detect operating systems running on network devices (also called OS fingerprints), provide vendor name, basic operating system, software version and device duration.

• Service Discovery: N-map can not only identify host hosts, but whether they act as mail, web or name servers, as well as specific applications and versions of related software they use.

• Security testing: Detecting which operating system versions and applications work on network hosts allows network administrators to determine their risk for certain errors. If a network administrator receives a warning about the vulnerability of a particular version of an application, for example, he or she may be able to scan his or her network to see if that software version is working on the network and take corrective action or update the appropriate hosts. Scripts can also perform tasks automatically such as detecting certain risks.

Zen-map Graphical User Interface 1

Zen-map Graphical User Interface 2

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