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Welcome to OPNsense’s documentation!

OPNsense® is an open source, easy-to-use and easy-to-build HardenedBSD based firewall and routing platform.

OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.

Table of Contents

• Introduction
  • Welcome to OPNsense’s documentation!
  • Mission Statement
  • Feature set
  • OPNsense Core Features
• Installation and setup
  • Hardware sizing & setup
  • Initial Installation & Configuration
  • Virtual & Cloud based Installation
  • Updates
  • Setup guides
• Lobby
  • General User Interface
  • Dashboard
  • OPNsense Tools
• Reporting
  • System Health & Round Robin Data
  • Using Insight - Netflow Analyzer
  • Netflow Export & Analyses
  • Reporting Settings
  • Reporting Traffic
  • Setup guides
• System
  • User Management
  • Users & Groups
  • Access / Servers / LDAP
  • Access / Servers / Radius
  • Two-factor authentication
  • Configuration Cloud Backup
  • Gateways
  • Gateway-groups
  • Multi WAN
  • High Availability & Hardware Failover
  • Settings
  • Using certificates
  • System Logging
  • Diagnostics
  • Setup guides
• Interfaces
  • Interface configuration
  • Diagnostics
  • Settings
  • Other Types
  • Mobile Networking
  • Using IPv6
  • Setup guides
• Firewall
  • Aliases
  • Rules
  • Network Address Translation
  • NPTv6
  • Traffic Shaping
  • [Interface] Groups
  • Virtual IPs
  • Normalization
  • Setup Traffic Shaping
  • Configure CARP
  • Diagnostics
  • Setup guides
• Virtual Private Networking
  • Supported VPN technologies
  • Configuration
• Services
  • Captive portal & GuestNET
  • DHCP
  • Inline Intrusion Prevention System
  • ET Pro Telemetry edition
  • Caching Proxy
  • Dynamic Routing
  • Monit
  • Setup guides
• Community Plugins
  • DNS
  • VPN & Connectivity
  • Web
  • Other
  • Reporting
• Third-party Plugins
  • Sunnyvalley
• Development Manual
  • Development Workflow
  • Coding Guidelines
  • Architecture
  • Backend
  • Frontend
  • Components
  • API Reference
  • Examples
  • How-tos
  • Sources
• Project Relations
  • Deciso B.V.
  • FreeBSD®
  • HardenedBSD
  • M0n0wall
  • Open Source Initiative
• Legal notices
  • OPNsense License & Copyright
  • Packages and ports
  • Documentation Copyright
  • Pictures Copyright
  • Logos Copyright
  • Trademark policy
• Support Options
  • Commercial
  • Community
  • Community Support Levels
• Contribute
  • Financially
  • Development
  • Translations
  • Documentation & wiki articles
  • Forum & IRC
  • Social media
  • Closing Words
• History
  • About the Fork