span style="float:right; display: inline"><script type="text/javascript" src="http://www.ohloh.net/p/6097/widgets/project_users.js?style=gray"></script></span iodine Latest (from 2014-06-16): 0.7.0 Download source / binaries: win32/64 , android Older downloads available below. iodine lets you tunnel IPv4 data through a DNS server. This can be usable in different situations where internet access is firewalled, but DNS queries are allowed. It runs on Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD and Windows and needs a TUN/TAP device. The bandwidth is asymmetrical with limited upstream and up to 1 Mbit/s downstream. Compared to other DNS tunnel implementations, iodine offers: Higher performance iodine uses the NULL type that allows the downstream data to be sent without encoding. Each DNS reply can contain over a kilobyte of compressed payload data. Portability iodine runs on ma...