macOS
Homebrew確認済み · 100%
brew install fail2banlocal Homebrew formula metadata
MacPorts確認済み · 94%
sudo port install fail2banMacPorts ports tree · security/fail2ban/Portfile · ソース: api.github.com
brew
fail2ban を Homebrew, apk, apt, dnf, MacPorts, Nix, pacman, zypper でインストール
fail2ban 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
追加のインストールコマンド
Linux
Alpine Linux apk確認済み · 92%
sudo apk add fail2banAlpine Linux edge package indexes · fail2ban · ソース: dl-cdn.alpinelinux.org
Debian apt確認済み · 92%
sudo apt install fail2banDebian stable package indexes · fail2ban · ソース: deb.debian.org
Fedora dnf確認済み · 92%
sudo dnf install fail2banFedora Rawhide package metadata · fail2ban · ソース: dl.fedoraproject.org
Nix確認済み · 92%
nix profile install nixpkgs#fail2bannixpkgs package indexes · pkgs/by-name/fa/fail2ban/package.nix · ソース: api.github.com
Arch Linux pacman確認済み · 92%
sudo pacman -S fail2banArch Linux sync databases · fail2ban · ソース: geo.mirror.pkgbuild.com
openSUSE zypper確認済み · 92%
sudo zypper install fail2banopenSUSE Tumbleweed package metadata · fail2ban · ソース: download.opensuse.org
概要
パッケージ概要
Scan log files and ban IPs showing malicious signs
プロジェクトリンク
コマンドとエイリアス
- fail2ban-client
- fail2ban-python
- fail2ban-regex
- fail2ban-server
- fail2ban-testcases
履歴
プロジェクトの歴史と使われ方
Fail2Ban is a long-running Python daemon and command-line toolkit for reacting to hostile log patterns by banning hosts through firewall actions. Its core appeal has stayed stable since the early releases: watch authentication and service logs, count repeated failures, and temporarily block the offending address.
プロジェクトの歴史
The official changelog records Fail2Ban releases back to 0.1.0 in October 2004. Early 0.x releases moved quickly through alpha, beta, and stable lines, with 0.6.0 stable in 2005, the 0.7 branch in 2006, and 0.8.0 stable in 2007. The README still credits Cyril Jaquier as original author and describes the project as community-driven for years.
The 0.9 series, beginning in 2014, marked the modern service-management era by adding a systemd journal backend. The 0.10 line followed with IPv6 work, including an alpha labeled for IPv6 support in 2016 and a 0.10.0 release in 2017. Later releases continued to refine journald, iptables, nftables, firewalld, pf, and service-specific filters.
The 1.x line arrived with 1.0.1 and 1.0.2 releases in 2022 and 1.1.0 in 2024. These releases focused less on changing the basic model and more on compatibility, security, and operational maintenance: Python version support, CVE fixes, systemd backend stability, IPv6 auto-detection, newer service log formats, and additional filters and actions.
採用の歴史
Fail2Ban became part of the standard Linux server-security toolbox because it matched the common shape of internet-facing Unix services: SSH, mail, web, and database daemons emitting failed-authentication logs. The project README says it is likely already packaged for a user's Linux distribution, and the supplied package-manager facts show broad availability across Alpine, Debian, Fedora/DNF, Homebrew, MacPorts, Nix, Arch, Ubuntu, and openSUSE.
Its adoption has been helped by configuration conventions that distributions can ship and administrators can override. Stock jails, filters, actions, and path files let package maintainers encode distribution-specific log locations while users keep local policy in `/etc/fail2ban`, especially `jail.local` and `jail.d` snippets.
使われ方
A typical Fail2Ban deployment installs the daemon, enables selected jails such as `sshd`, and lets `fail2ban-server` monitor logs while administrators use `fail2ban-client` for status, reloads, and manual control. The README explicitly warns users to interact through `fail2ban-client` rather than calling the server directly.
The package also matters to operators because `fail2ban-regex` gives a local way to test filters against log samples before enabling bans. That workflow, plus filter and action directories, made Fail2Ban not just a daemon but a small domain-specific toolkit for converting service logs into firewall state.
パッケージ好きにとっての重要性
Fail2Ban is significant in package-manager culture because it is both ordinary and sharp-edged: a tiny install command can place a privileged daemon, distro-specific defaults, init/systemd integration, and firewall actions on a host. Packagers must get paths, service units, Python dependencies, and default actions right or administrators either get no protection or accidental lockouts.
It is also a classic example of a package whose value comes from accumulated operational knowledge. The code is important, but the long tail of maintained filters for OpenSSH, Apache, nginx, Postfix, Dovecot, Exim, and many other services is why administrators keep installing it.
タイムライン
- 2004: Fail2Ban 0.1.0 alpha released.
- 2005: 0.6.0 stable release published.
- 2007: 0.8.0 stable release published.
- 2014: 0.9.0 beta added systemd journal backend.
- 2016: 0.10.0 alpha introduced IPv6-support work.
- 2017: 0.10.0 released.
- 2020: 0.11.2 released.
- 2022: 1.0.1 and 1.0.2 released with compatibility and security fixes.
- 2024: 1.1.0 released with newer Python support and further backend/filter updates.
Related projects
- OpenSSH, iptables, nftables, firewalld, pf, systemd-journald, DenyHosts, sshguard
ソース
セキュリティ状態
リスクレベル: orange
broad file, network, media, or database tool signal. formula declares a Homebrew service.
リスク分類器
リスク orange · 信頼度 中 · infrastructure
理由
- broad file, network, media, or database tool signal
- formula declares a Homebrew service
信号
- metadata:service
- text:client,server
インストール挙動
- formula メタデータに Homebrew post-install フックは記録されていません。
- formula メタデータがサービスまたはデーモンブロックを宣言しています。
- Homebrew bottle メタデータは 6 個のプラットフォームターゲットで利用できます。
- 1 件の実行時依存関係とともにインストールされます。
- ビルドメタデータには 1 件のビルド依存関係があります。
推奨レビュー
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
local files
Configuration and credential file locations
These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.
Configuration files
Config paths the tool may read or write during local use.
- Unix
/etc/fail2ban/jail.conf/etc/fail2ban/jail.local/etc/fail2ban/jail.d/*.conf/etc/fail2ban/filter.d/*.conf/etc/fail2ban/action.d/*.conf
実行可能ファイル
インストールされる実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
fail2ban-client | cli | グローバル実行可能ファイル | |
fail2ban-python | cli | グローバル実行可能ファイル | |
fail2ban-regex | cli | グローバル実行可能ファイル | |
fail2ban-server | cli | グローバル実行可能ファイル | |
fail2ban-testcases | cli | グローバル実行可能ファイル |
鮮度
バージョンと鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
ページ生成日2026-07-25
マネージャ版1.1.0
マネージャ更新日
ローカルデータOK
上流最新
検出された最新1.1.0
https://github.com/fail2ban/fail2ban
- 情報No package-manager update timestamp was available.信頼度 低
インストールメタデータ
パッケージメタデータ
| パッケージキー | brew:fail2ban |
|---|---|
| バージョン | 1.1.0 |
| パッケージマネージャ | Homebrew |
| パッケージマネージャページ | https://formulae.brew.sh/formula/fail2ban |
| ホームページ | https://www.fail2ban.org/ |
| リポジトリ | https://github.com/fail2ban/fail2ban |
| 上流ドキュメント | https://fail2ban.readthedocs.io/ |
| ライセンス | GPL-2.0-or-later |
| ソースアーカイブ | https://github.com/fail2ban/fail2ban/archive/refs/tags/1.1.0.tar.gz |
| 依存関係 | python@3.14 |
| ビルド依存関係 | sphinx-doc |
| Bottle | 利用可能 (対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | declared |
| 注意点 | You must enable any jails by editing: $HOMEBREW_PREFIX/etc/fail2ban/jail.conf Other configuration files are in $HOMEBREW_PREFIX/etc/fail2ban. See more instructions at https://github.com/fail2ban/fail2ban/wiki/Proper-fail2ban-configuration. |
レジストリ情報
ソースデータベース詳細
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | fail2ban |
| Version Scheme | 0 |
| Revision | 2 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
ソースデータベース一致
他のパッケージマネージャ記録
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
Debian apt95%
fail2ban 1.1.0-8
ban hosts that cause multiple authentication errors
sudo apt install fail2ban- Section: net
- Architecture: all
- 2 依存関係
- 9 任意依存関係
- normalized package name match
- 一致条件: Fail2ban
Nix95%
fail2ban
nix profile install nixpkgs#fail2ban- normalized package name match
- 一致条件: Fail2ban
Ubuntu apt95%
fail2ban 1.0.2-3
ban hosts that cause multiple authentication errors
sudo apt install fail2ban- Section: universe/net
- Architecture: all
- 2 依存関係
- 8 任意依存関係
- normalized package name match
- 一致条件: Fail2ban
apk95%
fail2ban 1.1.0-r3
Scans log files for login failures then updates iptables to reject originating ip address
sudo apk add fail2ban- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: fail2ban
- 1 依存関係
- 1 提供
- normalized package name match
- 一致条件: Fail2ban
apk95%
fail2ban-doc 1.1.0-r3
Scans log files for login failures then updates iptables to reject originating ip address (documentation)
sudo apk add fail2ban-doc- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: fail2ban
- normalized package name match
- 一致条件: Fail2ban
apk95%
fail2ban-openrc 1.1.0-r3
Scans log files for login failures then updates iptables to reject originating ip address (OpenRC init scripts)
sudo apk add fail2ban-openrc- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: fail2ban
- normalized package name match
- 一致条件: Fail2ban
apk95%
fail2ban-pyc 1.1.0-r3
Precompiled Python bytecode for fail2ban
sudo apk add fail2ban-pyc- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: fail2ban
- 1 依存関係
- normalized package name match
- 一致条件: Fail2ban
apk95%
fail2ban-tests 1.1.0-r3
Fail2ban test cases
sudo apk add fail2ban-tests- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: fail2ban
- 1 依存関係
- 1 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban 1.1.0-17.fc45
Daemon to ban hosts that cause multiple authentication errors
sudo dnf install fail2ban- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 3 依存関係
- 1 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-all 1.1.0-17.fc45
Install all Fail2Ban packages and dependencies
sudo dnf install fail2ban-all- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 9 依存関係
- 1 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-firewalld 1.1.0-17.fc45
Firewalld support for Fail2Ban
sudo dnf install fail2ban-firewalld- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 2 依存関係
- 2 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-hostsdeny 1.1.0-17.fc45
Hostsdeny (tcp_wrappers) support for Fail2Ban
sudo dnf install fail2ban-hostsdeny- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 3 依存関係
- 2 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-mail 1.1.0-17.fc45
Mail actions for Fail2Ban
sudo dnf install fail2ban-mail- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 2 依存関係
- 2 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-selinux 1.1.0-17.fc45
SELinux policies for Fail2Ban
sudo dnf install fail2ban-selinux- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 6 依存関係
- 1 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-sendmail 1.1.0-17.fc45
Sendmail actions for Fail2Ban
sudo dnf install fail2ban-sendmail- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 2 依存関係
- 2 提供
- normalized package name match
- 一致条件: Fail2ban
dnf95%
fail2ban-server 1.1.0-17.fc45
Core server component for Fail2Ban
sudo dnf install fail2ban-server- License: GPL-2.0-or-later
- Category: Unspecified
- Architecture: noarch
- Source Package: fail2ban
- 8 依存関係
- 4 提供
- normalized package name match
- 一致条件: Fail2ban
ソース経路
リポジトリデータから生成
このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。
Combined YAML source
View the package source record on GitHub.
使用ソース
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated configuration and credential file locations
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment