Rule by list
On 3 March 2001, around ten people in a Milan hacklab assembled a server from hardware a bank was getting rid of and scavenged parts. The least experienced person present was put at the keyboard so that everyone would understand what was being built. The machine was named Paranoia. On its second day, an inverted firewall rule instructed it to reject every connection not originating from itself, and for a while the server could talk only to the server. (Red: This is, to be fair, the most secure configuration known to computing, and also the least useful.) The collective printed the mistake on a T-shirt. The story is told in the collective’s own book +KAOS. ...