Linux POSIX Interface HOWTO
Descriptions of Linux POSIX interface.
http://www.xenotime.net/linux/linux-posix.html
Encrypted Root Filesystem HOWTO
How to setup encrypted root filesystem and swap.
http://linuxfromscratch.org/~devine/erfs-howto.html
Linux Encryption HOWTO
How to set up a Linux system to use encryption.
http://www.linuxsecurity.com/docs/HOWTO/Encryption-HOWTO/Encryption-HOWTO.html#toc4