Tinc (protocol)  Tinc is an open-source, self-routing, mesh networking protocol and software implementation used for compressed and encrypted virtual private networks. It was started in 1998 by Guus Sliepen, Ivo Timmermans, and Wessel Dankers, and released as a GPL-licensed project. Tinc is available on Linux, FreeBSD, OpenBSD, NetBSD, DragonFly BSD, Mac OS X, Microsoft Windows, Solaris, iOS, Android with full support for IPv6. The authors of Tinc have goals of providing a platform that is secure, stable, reliable, scalable, easily configurable, and flexible. Tinc uses OpenSSL or LibreSSL as the encryption library and gives the options of compressing communications with zlib for "best compression" or LZO for "fast compression".