listen on * server mmo1.ntp.se weight 1 server mmo2.ntp.se weight 1 server gbg1.ntp.se weight 1 server gbg2.ntp.se weight 1 server sth1.ntp.se weight 1 server sth2.ntp.se weight 1 server svl1.ntp.se weight 1 server svl2.ntp.se weight 1 sensor * constraints from "https://www.google.se"