Please see: http://www.fukt.bsnet.se/mandos/man/intro.8mandos This information previously in this file has been moved to the intro(8mandos) manual page. Go to the above URL, or run this command: make intro.8mandos && man -l intro.8mandos In short, this is the Mandos system; it allows computers to have encrypted root file systems and at the same time be capable of remote and/or unattended reboots.