SONaFR is a small system based upon OpenBSD 4.1 and 5.1. Version 1.0 is a floppy version with router, NAT, and firewall capabilities. No hard disk or CD-ROM is necessary. The system boots off a floppy, and all you have to do is to configure it. It also has transparent firewall and bandwidth control capabilities. Version 2.0 has two bootable USB images (OpenBSD 5.1); one has 120 MB, and the other one 1 GB. It has DHCP, Midnight Commander (a Norton Commander clone), and various basic system tools.