# Install fwknop

Single Packet Authorization and Port Knocking. Version 2.6.11 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:fwknop
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install fwknop
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install fwknop
```

  Evidence: MacPorts ports tree: net/fwknop/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- apk (92%):

```sh
sudo apk add fwknop
```

  Evidence: Alpine Linux edge package indexes: fwknop from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

- Debian apt (92%):

```sh
sudo apt install fwknop-apparmor-profile
```

  Evidence: Debian stable package indexes: fwknop-apparmor-profile from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install fwknop
```

  Evidence: Fedora Rawhide package metadata: fwknop from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#fwknop
```

  Evidence: nixpkgs package indexes: pkgs/by-name/fw/fwknop/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- pacman (92%):

```sh
sudo pacman -S fwknop
```

  Evidence: Arch Linux sync databases: fwknop from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

- zypper (92%):

```sh
sudo zypper install fwknop
```

  Evidence: openSUSE Tumbleweed package metadata: fwknop from https://download.opensuse.org/tumbleweed/repo/oss/repodata/155b97171d05e27afd950b6fe0d55513ff38f4597110664535bceedc680bbe6fd459f0733718dcc21dcf0efc7c8250fd1390c73d4790b42e62fb2c16a87242e5-primary.xml.zst

## Package Facts

- **Package key:** brew:fwknop
- **Package manager:** Homebrew
- **Package manager URL:** <https://formulae.brew.sh/formula/fwknop>
- **Version:** 2.6.11
- **Source summary:** Single Packet Authorization and Port Knocking
- **Homepage:** <https://www.cipherdyne.org/fwknop/>
- **Repository:** <https://github.com/mrash/fwknop>
- **Upstream docs:** <https://www.cipherdyne.org/fwknop>
- **License:** GPL-2.0-or-later
- **Source archive:** <https://www.cipherdyne.org/fwknop/download/fwknop-2.6.11.tar.gz>
- **Generated:** 2026-06-10T07:18:26+00:00

## Executables

- fwknop (cli)
- fwknopd (cli)
- fwknop (alias)
- fwknopd (alias)

## Dependencies

- gpgme
- libassuan
- libgpg-error

## Build Dependencies

- texinfo

## macOS Provided Libraries

- libpcap

## Install Behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux

## Freshness

- Page generated: 2026-06-10
- Package-manager version: 2.6.11
- Local data status: ok
- Upstream repository: https://www.cipherdyne.org/fwknop/
- info: No package-manager update timestamp was available.
- info: Release/tag comparison is only available for GitHub repositories.

## 安全说明

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** fwknop
- **Version Scheme:** 0
- **Revision:** 1
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## Other Package-Manager Records

- Debian apt - fwknop-apparmor-profile - 2.6.11-2: normalized package name match | Debian stable package indexes: fwknop-apparmor-profile from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator - Apparmor profile | https://www.cipherdyne.com/fwknop/
- Debian apt - fwknop-client - 2.6.11-2+b1: normalized package name match | Debian stable package indexes: fwknop-client from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator client side - C version | https://www.cipherdyne.com/fwknop/
- Debian apt - fwknop-server - 2.6.11-2+b1: normalized package name match | Debian stable package indexes: fwknop-server from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator server side - C version | https://www.cipherdyne.com/fwknop/
- Debian apt - libfko-doc - 2.6.11-2: normalized package name match | Debian stable package indexes: libfko-doc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator - documentation | https://www.cipherdyne.com/fwknop/
- Debian apt - libfko-perl - 2.6.11-2+b1: normalized package name match | Debian stable package indexes: libfko-perl from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator - Perl module | https://www.cipherdyne.com/fwknop/
- Debian apt - libfko3-dev - 2.6.11-2+b1: normalized package name match | Debian stable package indexes: libfko3-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator - development library | https://www.cipherdyne.com/fwknop/
- Debian apt - libfko3t64 - 2.6.11-2+b1: normalized package name match | Debian stable package indexes: libfko3t64 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | FireWall KNock OPerator - shared library | https://www.cipherdyne.com/fwknop/
- Nix - fwknop: normalized package name match | nixpkgs package indexes: pkgs/by-name/fw/fwknop/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - fwknop-apparmor-profile - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: fwknop-apparmor-profile from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator - Apparmor profile | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - fwknop-client - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: fwknop-client from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator client side - C version | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - fwknop-server - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: fwknop-server from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator server side - C version | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - libfko-doc - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: libfko-doc from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator - documentation | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - libfko-perl - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: libfko-perl from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator - Perl module | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - libfko3-dev - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: libfko3-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator - development library | https://www.cipherdyne.com/fwknop/
- Ubuntu apt - libfko3t64 - 2.6.10-20.2build3: normalized package name match | Ubuntu 24.04 LTS package indexes: libfko3t64 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | FireWall KNock OPerator - shared library | https://www.cipherdyne.com/fwknop/
- apk - fwknop - 2.6.11-r2: normalized package name match | Alpine Linux edge package indexes: fwknop from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Single Packet Authorization (SPA) implementation | https://cipherdyne.org/fwknop/


## Related Links

- [Terminal utility packages](https://www.automicvault.com/zh-hans/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/zh-hans/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Security and crypto packages](https://www.automicvault.com/zh-hans/pkg/security-crypto-tools/) - Matched security, identity, cryptography, password, signing, or certificate metadata.
- [Homebrew utility packages](https://www.automicvault.com/zh-hans/pkg/brew-utility-packages/) - Matched Homebrew package provider.
- [libgpg-error](https://www.automicvault.com/zh-hans/pkg/brew/libgpg-error/) - Runtime dependency declared by Homebrew.
- [libassuan](https://www.automicvault.com/zh-hans/pkg/brew/libassuan/) - Runtime dependency declared by Homebrew.
- [gpgme](https://www.automicvault.com/zh-hans/pkg/brew/gpgme/) - Runtime dependency declared by Homebrew.
- [texinfo](https://www.automicvault.com/zh-hans/pkg/brew/texinfo/) - Build dependency declared by Homebrew.
- [knock](https://www.automicvault.com/zh-hans/pkg/brew/knock/) - Shares av.db curated category or tags: access-control, cli, firewall, port-knocking, security.
- [rush](https://www.automicvault.com/zh-hans/pkg/brew/rush/) - Shares av.db curated category or tags: access-control, cli, security.
- [libselinux](https://www.automicvault.com/zh-hans/pkg/brew/libselinux/) - Shares av.db curated category or tags: access-control, cli, security.
- [ettercap](https://www.automicvault.com/zh-hans/pkg/brew/ettercap/) - Shares av.db curated category or tags: cli, network-security, security.
- [suricata](https://www.automicvault.com/zh-hans/pkg/brew/suricata/) - Shares av.db curated category or tags: cli, network-security, security.
- [arpoison](https://www.automicvault.com/zh-hans/pkg/brew/arpoison/) - Shares av.db curated category or tags: cli, network-security, security.
- [rshijack](https://www.automicvault.com/zh-hans/pkg/brew/rshijack/) - Shares av.db curated category or tags: cli, network-security, security.
- [fragroute](https://www.automicvault.com/zh-hans/pkg/brew/fragroute/) - Shares av.db curated category or tags: cli, network-security, security.
- [gnupg-pkcs11-scd](https://www.automicvault.com/zh-hans/pkg/brew/gnupg-pkcs11-scd/) - Security-sensitive metadata or terminology overlaps. Shared terms: cli, error, libassuan, libgpg, libgpg-error.

## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph
