Given recent discussions of IoT, NTP and wall clocks, this may be of interest http://www.theregister.co.uk/2016/11/23/ntp_patch_time_rolls_around_again/ And the vulnerabilities: http://www.kb.cert.org/vuls/id/633847 -- Clint. *No trees were harmed in the sending of this mail. However, a large number of electrons were greatly inconvenienced.*