To protect agains 1 falsticker NTP server, the client needs to connect
to at least 4 servers.
Source:
http://support.ntp.org/bin/view/Support/SelectingOffsiteNTPServers
5.3.3. Upstream Time Server Quantity
Signed-off-by: Gergely Imreh <imrehg@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
server 0.pool.ntp.org iburst
server 1.pool.ntp.org iburst
+server 2.pool.ntp.org iburst
+server 3.pool.ntp.org iburst
# Allow only time queries, at a limited rate, sending KoD when in excess.
# Allow all local queries (IPv4, IPv6)