# Install cjdns with Homebrew, apk, MacPorts, Nix, pacman
Advanced mesh routing system with cryptographic addressing. Version 22.3 via Homebrew; verified 2026-08-02. Also installable with nix: nix profile install nixpkgs#cjdns.
## Install
```sh
sudo av install brew:cjdns
```
Additional install commands:
### macOS
- Homebrew (100%):
```sh
brew install cjdns
```
Evidence: local Homebrew formula metadata
- MacPorts (94%):
```sh
sudo port install cjdns
```
Evidence: MacPorts ports tree: net/cjdns/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
### Linux
- apk (92%):
```sh
sudo apk add cjdns
```
Evidence: Alpine Linux edge package indexes: cjdns from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
- Nix (92%):
```sh
nix profile install nixpkgs#cjdns
```
Evidence: nixpkgs package indexes: pkgs/by-name/cj/cjdns/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- pacman (92%):
```sh
sudo pacman -S cjdns
```
Evidence: Arch Linux sync databases: cjdns from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
## Package facts
- **Package key:** brew:cjdns
- **Package manager:** Homebrew
- **Version:** 22.3
- **Source summary:** Advanced mesh routing system with cryptographic addressing
- **Homepage:**
- **Repository:**
- **Last updated:** 2026-08-02T01:55:35+09:00
- **Generated:** 2026-08-03T19:37:03+00:00
## Executables
- cjdnstool (alias)
- cjdroute (alias)
## Install behavior
- Bottle: not available
## Freshness
- Page generated: 2026-08-03
- Package-manager version: 22.3
## Project history and usage
cjdns is an encrypted IPv6 mesh-routing system that derives addresses from public keys and uses a distributed hash table for routing. It is packaged as a command-line/network daemon stack centered on `cjdroute`.
### Project history
The official repository was created in 2011 and describes cjdns as an encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing. Its whitepaper frames the project as a clean-slate response to Internet routing, security, decentralization, and ease-of-configuration problems.
The project goals document emphasizes built-in security, auto-configuration, decentralization, and scalability for mesh-like networks.
### Adoption history
The batch input records cjdns packages in Homebrew, Alpine, MacPorts, Nix, and Arch/pacman. The upstream README includes Linux and macOS build instructions, an installer-project option, and localized README translations, all signs of a project aimed at technically capable operators across Unix-like systems.
### How it is used
Users build or install cjdns, generate `/etc/cjdroute.conf` with `cjdroute --genconf`, protect that file because it contains node identity material, and run the router to join encrypted peer networks.
### Why package nerds care
cjdns is package-nerd significant because it is not just a daemon: it packages a whole alternate-networking experiment with crypto identity, TUN/TAP setup, peer configuration, and routing assumptions. It stresses distro policy around networking privileges, service setup, generated secrets, and fast-moving low-level dependencies.
### Timeline
- 2011: Official GitHub repository created.
- 2011: Early tags include cjdns-0.1, cjdns-0.2, and cjdns-0.3.
- 2026: Official GitHub repository metadata shows continuing activity.
### Related projects
- The official README points to cjdns.sh as a pre-built binary installer option.
- The official whitepaper compares the problem space with IPsec, DNSSEC, LISP, OLSR, HSLS, and BATMAN.
### Sources
-
-
-
-
## Security Notes
narrow executable package without higher-risk signals.
- **Geiger risk:** green / low
- narrow executable package without higher-risk signals
## 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
- Unix: /etc/cjdroute.conf
## Credential files
- Unix: /etc/cjdroute.conf
## Other Package-Manager Records
- Nix - cjdns: normalized package name match | nixpkgs package indexes: pkgs/by-name/cj/cjdns/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - cjdns - 22.3-r0: normalized package name match | Alpine Linux edge package indexes: cjdns from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | A routing engine designed for security, scalability, speed and ease of use | https://github.com/cjdelisle/cjdns
- apk - cjdns-doc - 22.3-r0: normalized package name match | Alpine Linux edge package indexes: cjdns-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | A routing engine designed for security, scalability, speed and ease of use (documentation) | https://github.com/cjdelisle/cjdns
- apk - cjdns-openrc - 22.3-r0: normalized package name match | Alpine Linux edge package indexes: cjdns-openrc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | A routing engine designed for security, scalability, speed and ease of use (OpenRC init scripts) | https://github.com/cjdelisle/cjdns
- pacman - cjdns - 22.3-2: normalized package name match | Arch Linux sync databases: cjdns from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Routing engine designed for security, scalability, speed and ease of use | https://github.com/cjdelisle/cjdns
- MacPorts - cjdns: normalized package name match | MacPorts ports tree: net/cjdns/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
## Combined YAML source
View the package source record on GitHub. [combined/cjdns.yml](https://github.com/mxcl/pkgdb/blob/main/combined/cjdns.yml)
## Sources
- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph