On 1/15/2014 12:04 AM, Fabrizio Di Carlo wrote: > Then setup ntpd as a local ntp server for internal use. This ntpd uses > it's localtime as the source instead of syncing from another ntp.org > public server. you also could hook up a simple GPS and configure your master NTP server to be a stratum 0 GPS referenced clock, then sync your other systems to it. down side, a GPS antenna needs a fairly clear view of the sky. it might work in a 1 story residence with a wooden roof, its not going to work at all buried in a multistory concrete and steel office building. -- john r pierce 37N 122W somewhere on the middle of the left coast