David Garamond wrote:
> Perhaps I can make a GUID by MD5( two random numbers || a timestamp || a
> unique seed like MD5 of '/sbin/ifconfig' output)...
As long as you don't use RFC1918 addresses, the IPv4 address(es) of the
host should be unique for the Internet. Append/prepend a 32 bit
timestamp and you have a 64bit unique identifier that is "universally"
unique (to one second).