Nebula – Scalable Overlay Networking

Nebula is a scalable overlay networking tool developed by Slack that allows you to seamlessly...

Networking Tools Linux Open Source

Nebula is a scalable overlay networking tool developed by Slack that allows you to seamlessly connect computers anywhere in the world. Built on the Noise Protocol, it creates encrypted tunnels between hosts, providing a simple yet powerful alternative to traditional VPNs for modern infrastructure.

📑 Table of Contents

Key Features

  • Peer-to-Peer – Direct connections between nodes
  • Lightweight – Single static binary
  • Certificate-Based – PKI for authentication
  • Firewall Rules – Built-in access control
  • NAT Punching – Works through most firewalls

Installation

# Download from GitHub
wget https://github.com/slackhq/nebula/releases/latest/download/nebula-linux-amd64.tar.gz
tar xzf nebula-linux-amd64.tar.gz
sudo mv nebula nebula-cert /usr/local/bin/

Getting Started

# Generate CA
nebula-cert ca -name "MyOrg"

# Generate host certificate
nebula-cert sign -name "server1" -ip "10.0.0.1/24"

# Run Nebula
sudo nebula -config /etc/nebula/config.yml

Download Nebula

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