NTP Server¶

Links¶

• http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.10.
• http://www.ubuntugeek.com/network-time-protocol-ntp-server-and-clients-setup-in-ubuntu.html

Configuration of /etc/ntp.con on time.dev.ru.is¶

...

# You do need to talk to an NTP server or two (or three).
#server ntp.ubuntu.com
server 0.no.pool.ntp.org iburst
server 0.dk.pool.ntp.org iburst
server 0.uk.pool.ntp.org iburst
server 1.no.pool.ntp.org iburst
server 1.dk.pool.ntp.org iburst
server 1.uk.pool.ntp.org iburst
server 127.127.1.0 #fallback to local clock if baad
fudge  127.127.1.0 stratum 10
restrict no.pool.ntp.org noquery
restrict dk.pool.ntp.org noquery
restrict uk.pool.ntp.org noquery

....

# Clients from this (example!) subnet have unlimited access, but only if
# cryptographically authenticated.
#restrict 130.208.0.0 mask 255.255.0.0 notrust
restrict 130.208.0.0 mask 255.255.0.0 nomodify notrap