|| server adress               | Location      |  
  | ntp.ipv6.viagenie.qc.ca     | IPV6 ONLY     |  
  | clock.via.net               |               |  
  | server fartein.ifi.uio.no   | Norway        |
  | server ntp.uio.no           | Norway        |
  | server ntp.eunet.no         | Norway        |
  | ntp.demon.co.uk             | UK            |  
  | ntp.nasa.gov                | USA           |
  | bigben.cac.washington.edu   | USA           |
  | time-b.nist.gov             | USA           |
  | montpelier.ilan.caltech.edu | USA           |
  | nist1.aol-ca.truetime.com   | USA           |
  | nist1.datum.com             | USA           |
  | time-a.timefreq.bldrdoc.gov | USA           |
  | time-b.timefreq.bldrdoc.gov | USA           |
  | time-c.timefreq.bldrdoc.gov | USA           |
  | time.nist.gov               | USA           |
  | utcnist.colorado.edu        | USA           |
  | tick.usno.navy.mil          | USA           |
  | tock.usno.navy.mil          | USA           |
  | mizbeaver.udel.edu          | USA           |