HOWTO: EncFS Encrypted Filesystem in Ubuntu and Fedora GNU/Linux
(Go straight to the HOWTOs. Do not pass GO.)
2 June 2007: Updated with comments for 7.04 / Feisty Fawn.
I mentioned recently that I planned to keep using TrueCrypt in GNU/Linux since I had used it profitably in Windows, and that I also intended to keep using the container approach where you create a single file [...]

Richard Stallman: