iodine is a free (ISC licensed) tunnel application to forward IPv4 traffic through DNS servers (IP over DNS). Works on Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X and Windows.
- VPN Service
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- BSD
- Self-Hosted
iodine is a free (ISC licensed) tunnel application to forward IPv4 traffic through DNS servers (IP over DNS). Works on Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X and Windows.
dnscrypt-proxy - A tool for securing communications between a client and a DNS resolver

DNScapy is a DNS tunneling tool. The code is very light and written in Python. It includes a server and a client. The server can handle multiple clients.