FreeBSD Based Live CDs
Newtonian_p writes "Now the BSD world has an answer to Knoppix. The FreeSBIE project have released a live FreeBSD based system on CD. There are also plans to develop a suite of programs to be used to create a personalized disk." If it offers a painless BSD install (the way Knoppix makes it easy to install Debian to a hard drive), this should be a popular project. Reader Cronopios links to a related effort called LiveBSD which "has heavily modified FreeSBIE's scripts to allow for apache mysql and many other programs to run."
If there's a remote root exploit, rebooting is merely going to make an attacker wait five minutes and then re-run the exploit. A better solution is a CD-RW disk in a CD-ROM drive -- you can always reboot into a clean system, but if there are security issues, you can remove the disk, fix the necessary bits, and then reboot.
Tarsnap: Online backups for the truly paranoid
Flash isn't blazing fast by any definition of the word fast, and it's a lot more expensive than CDs - for a 1GB flash drive you could go out and buy a copy of Windows or several copies of any Linux distro. Also remember that Flash has that whole re-writing problem - if the Flash inadvertently gets used for swap space or something, it'd die in no time. Lastly, not a lot of computers boot from USB without some CD to help them along (mine certainly wouldn't), so you'd probably need a CD anyway...
--- Bwah?