macOS
brew install nebulalocal Homebrew formula metadata
sudo port install nebulaMacPorts ports tree · net/nebula/Portfile · source: api.github.com
brew
Scalable overlay networking tool for connecting computers anywhere. Version 1.10.3 via Homebrew; verified from local package data.
install
brew install nebulalocal Homebrew formula metadata
sudo port install nebulaMacPorts ports tree · net/nebula/Portfile · source: api.github.com
sudo apk add nebulaAlpine Linux edge package indexes · nebula · source: dl-cdn.alpinelinux.org
sudo apt install golang-github-slackhq-nebula-devDebian stable package indexes · golang-github-slackhq-nebula-dev · source: deb.debian.org
sudo dnf install nebulaFedora Rawhide package metadata · nebula · source: dl.fedoraproject.org
nix profile install nixpkgs#nebulanixpkgs package indexes · pkgs/by-name/ne/nebula/package.nix · source: api.github.com
sudo pacman -S nebulaArch Linux sync databases · nebula · source: geo.mirror.pkgbuild.com
sudo zypper install nebulaopenSUSE Tumbleweed package metadata · nebula · source: download.opensuse.org
overview
Scalable overlay networking tool for connecting computers anywhere
history
Nebula is Slack's open-source overlay networking system for connecting machines across clouds, data centers, and less predictable networks with encrypted peer-to-peer tunnels. Slack announced it on 2019-11-19 after more than two years of internal use, describing it as the answer to connecting tens of thousands of computers across many locations.
The project came out of Slack's attempt to replace IPSec for inter-region encrypted connectivity. Slack's engineering post says IPSec initially worked but became an operational burden and added routing hops through tunnel hosts, so Slack built a system that combined certificates, encryption, security groups, peer discovery, and tunneling into one operational model.
The public GitHub repository was created on 2019-11-16. The README credits Nebula to Slack Technologies, Inc. by Nate Brown and Ryan Huber, with additional contributors, and describes the design as a mutually authenticated peer-to-peer software-defined network based on the Noise Protocol Framework.
Nebula's adoption signal is unusually strong for a Homebrew networking package because it was production-proven before release: Slack said in 2019 that Nebula ran on every server at Slack. The GitHub repository showed 17,472 stars and 1,157 forks via the GitHub API on 2026-07-01, reflecting durable open-source visibility in the mesh-VPN and overlay-networking space.
Homebrew's formula page listed stable version 1.10.3 and showed 1,724 installs over 365 days, 171 over 90 days, and 60 over 30 days when checked on 2026-07-01. That is modest compared with mainstream CLIs but healthy for self-hosted network infrastructure.
Package users install the `nebula` daemon and `nebula-cert` helper, generate a CA plus host certificates, designate one or more lighthouse nodes for discovery, then run hosts from YAML configuration files. Practical usage centers on private service networks, remote admin access, multi-cloud host reachability, and replacing static VPN concentrator patterns with direct encrypted peer paths where NAT traversal works.
The official docs make the operational shape clear: configuration covers PKI, static host maps, lighthouse discovery, UDP listening, NAT keepalives, relay fallback, TUN setup, firewall rules, logging, and metrics. Package nerds tend to compare Nebula with Tailscale, WireGuard mesh tooling, and classic IPSec/OpenVPN, valuing its self-hosted CA and explicit group-based firewall model.
Nebula matters because it is not just another VPN wrapper: it packages Slack's internal overlay-network design as a small Go tool with cross-platform release artifacts and distro packages. In package indexes it sits at the intersection of VPN, mesh networking, zero-trust-ish host identity, and SRE-friendly private networking.
security posture
broad file, network, media, or database tool signal. formula declares a Homebrew service.
orange risk · medium confidence · infrastructure
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
local files
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.
Config paths the tool may read or write during local use.
config.yml/path/to/config.ymlCredential-bearing paths to review before unattended agent runs.
ca.keyca.crt{host}.crt{host}.keyexecutables
| Command | Kind | Exposure | Note |
|---|---|---|---|
nebula | cli | global executable | |
nebula-cert | cli | global executable |
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.
https://github.com/slackhq/nebula
install metadata
| Package key | brew:nebula |
|---|---|
| Version | 1.10.3 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/nebula |
| Homepage | https://github.com/slackhq/nebula |
| Repository | https://github.com/slackhq/nebula |
| Upstream docs | https://github.com/slackhq/nebula#readme |
| License | MIT |
| Source archive | https://github.com/slackhq/nebula/archive/refs/tags/v1.10.3.tar.gz |
| Build dependencies | go |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | declared |
registry facts
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | nebula |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
golang-github-slackhq-nebula-dev 1.9.3+dfsg-6
performant, scalable network overlay (Go library)
https://github.com/slackhq/nebula
sudo apt install golang-github-slackhq-nebula-devnebula 1.9.3+dfsg-6+b2
performant, scalable network overlay
https://github.com/slackhq/nebula
sudo apt install nebulanebula
nix profile install nixpkgs#nebulagolang-github-slackhq-nebula-dev 1.6.1+dfsg-3build1
performant, scalable network overlay (Go library)
https://github.com/slackhq/nebula
sudo apt install golang-github-slackhq-nebula-devnebula 1.6.1+dfsg-3build1
performant, scalable network overlay
https://github.com/slackhq/nebula
sudo apt install nebulanebula 1.10.3-r3
Scalable overlay networking tool with a focus on performance, simplicity and security
https://github.com/slackhq/nebula
sudo apk add nebulanebula-openrc 1.10.3-r3
Scalable overlay networking tool with a focus on performance, simplicity and security (OpenRC init scripts)
https://github.com/slackhq/nebula
sudo apk add nebula-openrcnebula 1.10.3-1.fc45
A scalable overlay networking tool with a focus on performance, simplicity and security
https://github.com/slackhq/nebula
sudo dnf install nebulanebula 1.10.3-1
A scalable overlay networking tool with a focus on performance, simplicity and security
https://github.com/slackhq/nebula
sudo pacman -S nebulanebula 1.10.3-2.1
A scalable overlay networking tool
https://github.com/slackhq/nebula
sudo zypper install nebulanebula-cert 1.10.3-2.1
Seperate nebula-cert package
https://github.com/slackhq/nebula
sudo zypper install nebula-certnebula
sudo port install nebulasource trail
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