server 0.debian.pool.ntp.org iburst
server 1.debian.pool.ntp.org iburst
server 2.debian.pool.ntp.org iburst
server 3.debian.pool.ntp.org iburst
server ntp.on.net
server ntp.adelaide.edu.au
server ntp1.adelaide.edu.au
server ntp2.adelaide.edu.au
server au.pool.ntp.org
server pool.ntp.org
server ntp.ubuntu.com
server ntp.mawsonlakes.org
server ntp.flinders.edu.au
server ntp.unisa.edu.au