DragonLinux is an Internet-ready distribution which is only 150MB installed. It is a fully-functional UMSDOS/Loopback hybrid complete with networking tools, a compiler, X-Windows, KDE, and documentation.
I reccomend it, and use it.
Easy to use, easy to tweak.
This has been in my ~/bin for a long time now.
A tool for securing DNS communications between a client and a DNS resolver.
A polyhedral extraction tool (PET).