> P.S. The type of utility used on sources is not much more than > two tin cans and a piece of string.
It's effective, if a touch indiscriminate. It probably will lead to DoS eventually, which is why I'm tempted by the X.509 certificate approach. But of course I have no idea how to distribute certificates, I'll have to renew my acquaintance with Mark Shuttleworth (I _do_ know him, but I'm not being serious), before I can make any serious suggestions. ++L
