“Tech-savvy admirers of the late Terry Pratchett have hit upon an idea for a particularly appropriate memorial. It will be everywhere and nowhere, hiding in the code of the internet.
Pratchett’s 33rd Discworld novel, Going Postal, tells of the creation of an internet-like system of communication towers called “the clacks”. When John Dearheart, the son of its inventor, is murdered, a piece of code is written called “GNU John Dearheart” to echo his name up and down the lines. “G” means that the message must be passed on, “N” means “not logged”, and “U” means the message should be turned around at the end of a line. (This was also a realworld tech joke: GNU is a free operating system, and its name stands, with recursive geek humour, for “GNU’s not Unix”.) The code causes Dearheart’s name to be repeated indefinitely throughout the system, because: “A man is not dead while his name is still spoken.”
What better way to remember the beloved inventor of this fictional system, then, than “GNU Terry Pratchett”?”
Source: The Guardian
This, of course, means simply adding a HEADER value for HTTP responses in your favourite Web Server. The header name = “X-Clacks-Overhead”, value = “GNU Terry Pratchett”.