tinc is a Virtual Private Network (VPN) daemon that uses tunnelling and encryption to create a secure private network between hosts on the Internet. tinc is Free Software and licensed under the GNU General Public License version 2 or later. Because the VPN appears to the IP level network code as a normal network device, there is no need to adapt any existing software. This allows VPN sites to share information with each other over the Internet without exposing any information to others.

Code Quality Rank: L3
Programming language: C
License: GNU General Public License v3.0 or later
Tags: VPN    

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About tinc

Tinc is a peer-to-peer VPN daemon that supports VPNs with an arbitrary number of nodes. Instead of configuring tunnels, you give tinc the location and public key of a few nodes in the VPN. After making the initial connections to those nodes, tinc will learn about all other nodes on the VPN, and will make connections automatically. When direct connections are not possible, data will be forwarded by intermediate nodes.

Tinc can operate in several routing modes. In the default mode, "router", every node is associated with one or more IPv4 and/or IPv6 Subnets. The other two modes, "switch" and "hub", let the tinc daemons work together to form a virtual Ethernet network switch or hub.

This is a pre-release

Please note that this is NOT a stable release. Until version 1.1.0 is released, please use one of the 1.0.x versions if you need a stable version of tinc.

Although tinc 1.1 will be protocol compatible with tinc 1.0.x, the functionality of the tinc program may still change, and the control socket protocol is not fixed yet.


See [QUICKSTART.md](QUICKSTART.md) for a quick guide to get tinc up and running. Read the manual for more detailed information.

Getting tinc

From your distribution

Many operating system distributions have packaged tinc. Check your package manager first.

Nightly builds

You can download pre-built binary packages for multiple Linux distributions and Windows here:

Note that these packages have not been heavily tested and are not officially supported by the project. Use them at your own risk. You are advised to use tinc shipped by your distribution, or build from source.

Build it from source

See the file [INSTALL.md](INSTALL.md) for instructions of how to build and install tinc from source.


tinc is Copyright © 1998-2022 Ivo Timmermans, Guus Sliepen [email protected], and others.

For a complete list of authors see the [AUTHORS](AUTHORS) file.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING for more details.

*Note that all licence references and agreements mentioned in the tinc README section above are relevant to that project's source code only.