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Tinc – A Virtual Private Network (VPN) Daemon

Latest stable
version: 1.0.36

Latest prerelease from the 1.1 branch: 1.1pre17

Latest news:

Tinc is potentially affected by CVE-2019-14899.

Please ensure your firewalls block packets with destination IP
addresses in your VPN IP range from being received on WAN
interfaces.

More news…

What is tinc?

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. In addition, tinc has
the following features:

Encryption, authentication and compression
All traffic is optionally compressed using zlib or LZO, and
LibreSSL or OpenSSL is used to encrypt the traffic and protect it
from alteration with message authentication codes and sequence
numbers.
Automatic full mesh routing
Regardless of how you set up the tinc daemons to connect to
each other, VPN traffic is always (if possible) sent directly to
the destination, without going through intermediate hops.
NAT traversal
As long as one node in the VPN allows incoming connections on a
public IP address (even if it is a dynamic IP address), tinc will
be able to do NAT traversal, allowing direct communication between
peers.
Easily expand your VPN
When you want to add nodes to your VPN, all you have to do is
add an extra configuration file, there is no need to start new
daemons or create and configure new devices or network
interfaces.
Ability to bridge ethernet segments
You can link multiple ethernet segments together to work like a
single segment, allowing you to run applications and games that
normally only work on a LAN over the Internet.
Runs on many operating systems and supports IPv6
Currently Linux, FreeBSD, OpenBSD, NetBSD, OS X, Solaris,
Windows 2000, XP, Vista and Windows 7 and 8 platforms are
supported. See our section about supported
platforms
for more information about the state of the ports.
tinc has also full support for IPv6, providing both the possibility
of tunneling IPv6 traffic over its tunnels and of creating tunnels
over existing IPv6 networks.

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