Thanks to Key we have Iodine:
Title: iodine.tce
Description: IP over DNS tunneling tool.
Version: 0.5.1
Author: Bjorn Andersson
Original-site: http://code.kryo.se/iodine/
Copying-policy: Custom
Size: 90.3k
Extension_by: Key
Comments: 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.
Title: iodine.tcz
Description: IP over DNS tunneling tool.
Version: 0.5.1
Author: Bjorn Andersson
Original-site: http://code.kryo.se/iodine/
Copying-policy: Custom
Size: 450k
Extension_by: Key
Comments: 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.