Nmap Overview

What is Nmap?

Nmap ("Network Mapper") is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping).

Buyer's Guide

Download the Network Monitoring Software Buyer's Guide including reviews and more. Updated: June 2021

Nmap Customers
Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication

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MP
DevOps Engineer
Vendor
It is able to check open ports on a server to ensure that they meet security requirements

What other advice do I have?

Spend time reading the documentation as it is the swiss-knife of port scanning.
it_user752739
IT Security Analyst at a tech consulting company with 51-200 employees
Real User
It enhances the scanning phase of vulnerability assessment and penetration testing (VAPT)

What other advice do I have?

It is most efficient network scanner right now. It is fulfilling all our security needs, such as finding the live hosts, operating systems detection, service – version detection, port scanning, and script scanning. Apart from this, 50% of network vulnerabilities can be confirmed using this scanner. It is one of the best network framework available as an open source technology. Go for this tool if you are planning for network penetration testing, network discovery and troubleshooting, etc.
Find out what your peers are saying about Nmap, SolarWinds, Paessler AG and others in Network Monitoring Software. Updated: June 2021.
511,607 professionals have used our research since 2012.
it_user750462
Chief Technology Officer at a comms service provider
Vendor
An excellent, free tool which allows it’s users a multitude of solutions to scan a network

What other advice do I have?

It’s an excellent tool and allows it’s users a multitude of solutions to scan a network.