pkg.sopackage field notes

brew / rank 250

Install nmap with Homebrew

Port scanning utility for large networks. Version 7.99 via Homebrew; verified 2026-06-22.

install

Additional install commands

macOS

Homebrewverified · 100%
brew install nmap

provider-native install command

overview

Package summary

Port scanning utility for large networks

Commands and aliases

  • ncat
  • ndiff
  • nmap
  • nping

history

Project history and usage

Nmap, short for Network Mapper, is one of the defining open-source security and network-discovery tools. Gordon "Fyodor" Lyon released it in Phrack issue 51 on September 1, 1997 as a Linux-only port scanner of about 2,000 lines; it grew into a cross-platform scanner for host discovery, port scanning, version detection, OS detection, scripting, scan comparison, packet generation, and network troubleshooting.

Project history

The official Nmap history highlights rapid early expansion: version 2.00 added OS detection on December 12, 1998; the first GUI appeared in April 1999; Windows support landed in December 2000; Mac OS X support and XML output arrived with Nmap 3.00 on July 31, 2002; and service/version detection was publicly released with Nmap 3.45 on September 16, 2003. The scan engine was rewritten as `ultra_scan` in 2004, raw Ethernet sending appeared in 2005, and the Nmap Scripting Engine arrived in 2006.

Adoption history

Nmap's adoption is unusually broad for a security tool. The official guide describes millions of users worldwide, recognition by publications such as Linux Journal and InfoWorld, and repeated appearances in films. Its own timeline also notes security-community infrastructure: a public Subversion repository in 2006, Google Summer of Code participation, Zenmap integration, and the 2009 release of Ncat and Ndiff as companion tools.

How it is used

Package nerds install Nmap not only for `nmap` itself but for the companion commands Homebrew ships: `ncat`, `ndiff`, and `nping`. Everyday workflows include `nmap -A -T4 host` for an aggressive inventory scan, targeted `-sV` service/version detection, `-O` OS detection, `-sn` ping sweeps, NSE scripts for protocol checks, `ncat` for socket work, and `ndiff` to compare repeated XML scans.

Why package nerds care

Nmap is a canonical example of a CLI package whose upstream is bigger than a single binary: it carries data files, scripts, service probes, OS fingerprints, documentation, and multiple related tools. It is packaged almost everywhere, and Homebrew's API reported 14,039 installs in 30 days, 54,604 in 90 days, and 251,639 in 365 days when checked on July 1, 2026.

Timeline

  • 1997-09-01: first release in Phrack issue 51.
  • 1998-12-12: Nmap 2.00 adds OS detection.
  • 2000-12-07: first official Windows-capable version.
  • 2002-07-31: Nmap 3.00 adds Mac OS X support, XML output, and uptime detection.
  • 2003-09-16: service/version detection is publicly released.
  • 2006-12-10: Nmap Scripting Engine debuts in Nmap 4.21ALPHA1.
  • 2009-01-23: Ncat and Ndiff are added.
  • 2026-07-01: Homebrew stable version is 7.99.

Related projects

  • Ncat
  • Ndiff
  • Nping
  • Zenmap
  • Npcap
  • Nmap Scripting Engine

security posture

Risk level: red

network reconnaissance tool.

Risk classifier

red risk · medium confidence · escape-surveillance-offensive

Why

  • network reconnaissance tool

Signals

  • override:nmap

Install behavior

  • No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
ncatexecutableindexed executableDiscovered from the local executable index.
ndiffexecutableindexed executableDiscovered from the local executable index.
nmapexecutableindexed executableDiscovered from the local executable index.
npingexecutableindexed executableDiscovered from the local executable index.

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-03
manager version7.99
manager updated2026-06-22
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:nmap
Version7.99
Package managerHomebrew
Homepagehttps://nmap.org/
Last updated2026-06-22T14:05:38-07:00
Pulseupdated
Bottlenot recorded
Servicenone declared

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • Nucleus package database
  • curated package history
  • pkgdb category and tag curation