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============
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Introduction
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============
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Welcome to the OPNsense documentation & wiki project!
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The documentation is work in progress and is updated frequently.
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If you would like to contribute in anyway, please take a look at our guide
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how to :doc:`contribute`.
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.. image:: ./images/opnsense_logo-zilver_grijs.png
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------------------------------------
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Welcome to OPNsense's documentation!
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------------------------------------
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`OPNsense® <https://opnsense.org>`__ is an open source,
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easy-to-use and easy-to-build FreeBSD based firewall and routing platform.
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**OPNsense** includes most of the features available in expensive commercial
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firewalls, and more in many cases. It brings the rich feature set of commercial
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offerings with the benefits of open and verifiable sources.
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-----------------
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Mission Statement
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-----------------
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Give users, developers and businesses a friendly, stable and transparent
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environment. Make OPNsense the most widely used open source security platform.
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The project’s name is derived from open and sense and stands for:
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“Open (source) makes sense.”
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.. image:: ./images/OPNsense-Deciso-Screenshot.jpg
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-------------------
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-----------
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Feature set
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-----------
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The feature set of OPNsense includes high-end features such as forward caching
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proxy, traffic shaping, intrusion detection and easy OpenVPN client setup.
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The latest release is based on a recent FreeBSD for long-term support and uses a
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newly developed MVC-framework based on Phalcon. OPNsense’s focus on security
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brings unique features such as the option to use LibreSSL instead of OpenSSL
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(selectable in the GUI) and a custom version based on HardenedBSD.
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The robust and reliable update mechanism gives OPNsense the ability to provide
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important security updates in a timely fashion.
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----------------------
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----------------------
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OPNsense Core Features
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----------------------
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- Traffic Shaper
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- Captive portal
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- Voucher support
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- Template manager
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- Multi zone support
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- Forward Caching Proxy
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- Transparent mode supported
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- Blacklist support
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- Virtual Private Network
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- Site to site
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- Road warrior
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- IPsec
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- OpenVPN
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- High Availability & Hardware Failover
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- Includes configuration synchronization & synchronized state tables
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- Moving virtual IPs
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- Intrusion Detection and Inline Prevention
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- Built-in support for Emerging Treats rules
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- Simple setup by use of rule categories
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- Scheduler for period automatic updates
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- Built-in reporting and monitoring tools
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- System Health, the modern take on RRD Graphs
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- Packet Capture
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- Netflow
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- Support for plugins
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- DNS Server & DNS Forwarder
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- DHCP Server and Relay
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- Dynamic DNS
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- Backup & Restore
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- Encrypted cloud backup to Google Drive and Nextcloud
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- Configuration history with colored diff support
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- Local drive backup & restore
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- Stateful inspection firewall
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- Granular control over state table
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- 802.1Q VLAN support
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- and more…
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