On Oct 25, 2007, at 6:13 PM, Joe Armstrong wrote: > Does anybody have some Erlang code to generate a GUID? > (or to read the MAC address of the local machine interfaces?) Probably machine/os specific, on freebsd you can do 1> os:cmd("sysctl kern.hostuuid"). "kern.hostuuid: B5D5342C-9142-3AA0-81C8-7391B34506DA\n" best regards, taavi