# fierce を Homebrew, apt, Nix でインストール fierce のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。 ## インストール ```sh sudo av install brew:fierce ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install fierce ``` 証拠: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install fierce ``` 証拠: Debian stable package indexes: fierce from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - Nix (92%): ```sh nix profile install nixpkgs#fierce ``` 証拠: nixpkgs package indexes: pkgs/by-name/fi/fierce/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## パッケージ情報 - **パッケージキー:** brew:fierce - **パッケージマネージャ:** Homebrew - **バージョン:** 1.6.0 - **ソース概要:** DNS reconnaissance tool for locating non-contiguous IP space - **ホームページ:** - **リポジトリ:** - **生成日時:** 2026-08-03T19:37:03+00:00 ## 実行可能ファイル - fierce (エイリアス) ## インストール挙動 - Bottle: 利用不可 ## バージョンと鮮度 - ページ生成日: 2026-08-03 - マネージャ版: 1.6.0 ## プロジェクトの歴史と使われ方 fierce is a DNS reconnaissance command-line tool used to locate non-contiguous IP space and hostnames for a target domain before deeper scanning. ### プロジェクトの歴史 The modern fierce repository describes the project as a Python 3 conversion of the original fierce tool by RSnake and others at ha.ckers.org. The repository keeps the older Perl script under scripts/fierce.pl, where the banner identifies Fierce v0.9.9 beta dated March 24, 2007 and credits RSnake with threading and additions by IceShaman. The Python rewrite kept the core reconnaissance idea but modernized the packaging and runtime around Python tooling. The README presents pip installation, direct source checkout, Poetry development setup, pytest testing, flake8 linting, and coverage commands. ### 採用の歴史 fierce belongs to the pre-exploitation reconnaissance layer of security tooling. Its README explicitly frames it as a precursor to tools such as nmap, unicornscan, Nessus, and Nikto, because those scanners are more useful once likely IP space and hostnames are known. The supplied package metadata shows fierce packaged beyond Homebrew, including Debian, Ubuntu, and Nix. That distribution footprint fits a small CLI security utility that penetration testers and defenders can install quickly on Unix-like systems. ### 使われ方 The README examples center on DNS lookups rather than exploitation. Typical use starts with a domain and a subdomain list, then optionally traverses nearby IPs, restricts nearby lookups to selected domains, attempts HTTP connections on discovered names, widens searches across a /24, checks zone-transfer exposure, redirects output to a file, or scans an internal address range against a chosen DNS server. The original description, preserved in the README, is careful about scope: fierce is meant to identify likely targets inside and outside a corporate network through DNS, not to indiscriminately scan the internet or exploit hosts. ### パッケージ好きにとっての重要性 For package nerds, fierce is a recognizable example of a security tool whose cultural value is larger than its code size: it wraps a focused reconnaissance workflow into a single installable command and carries lineage from the older ha.ckers.org-era Perl security-tool ecosystem into Python 3 packaging. ### タイムライン - 2007: The preserved Perl script identifies Fierce v0.9.9 beta dated March 24, 2007. - Python 3 era: The maintained repository describes itself as a Python 3 conversion to simplify and modernize the codebase. - Packaging note: The README documents pip installation and standard Python development commands. ### Related projects - The project documentation positions fierce before tools such as nmap, unicornscan, Nessus, and Nikto in a reconnaissance workflow. Its operating domain also overlaps with DNS zone-transfer testing and subdomain discovery tools. ### ソース - - ## セキュリティノート narrow executable package without higher-risk signals. - **Geiger リスク:** グリーン / 低 - narrow executable package without higher-risk signals ## 他のパッケージマネージャ記録 - Debian apt - fierce - 1.6.0-1: normalized package name match | Debian stable package indexes: fierce from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Domain DNS scanner | https://github.com/mschwager/fierce - Nix - fierce: normalized package name match | nixpkgs package indexes: pkgs/by-name/fi/fierce/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - fierce - 1.5.0-1: normalized package name match | Ubuntu 24.04 LTS package indexes: fierce from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Domain DNS scanner | https://github.com/mschwager/fierce ## Combined YAML source View the package source record on GitHub. [combined/fierce.yml](https://github.com/mxcl/pkgdb/blob/main/combined/fierce.yml) ## ソース - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph