ntp.conf revision 195652
1148456Spjd# 2220922Spjd# $FreeBSD: head/etc/ntp.conf 195652 2009-07-13 05:51:33Z dwmalone $ 3148456Spjd# 4148456Spjd# Default NTP servers for the FreeBSD operating system. 5148456Spjd# 6148456Spjd# Don't forget to enable ntpd in /etc/rc.conf with: 7148456Spjd# ntpd_enable="YES" 8148456Spjd# 9148456Spjd# The driftfile is by default /var/db/ntpd.drift, check 10148456Spjd# /etc/defaults/rc.conf on how to change the location. 11148456Spjd# 12148456Spjd 13155174Spjd# 14148456Spjd# The following three servers will give you a random set of three 15148456Spjd# NTP servers geographically close to you. 16148456Spjd# See http://www.pool.ntp.org/ for details. Note, the pool encourages 17148456Spjd# users with a static IP and good upstream NTP servers to add a server 18148456Spjd# to the pool. See http://www.pool.ntp.org/join.html if you are interested. 19148456Spjd# 20148456Spjd# The option `iburst' is used for faster initial synchronisation. 21148456Spjd# The option `maxpoll 9' is used to prevent PLL/FLL flipping on FreeBSD. 22148456Spjd# 23148456Spjdserver 0.freebsd.pool.ntp.org iburst maxpoll 9 24148456Spjdserver 1.freebsd.pool.ntp.org iburst maxpoll 9 25148456Spjdserver 2.freebsd.pool.ntp.org iburst maxpoll 9 26148456Spjd#server 3.freebsd.pool.ntp.org iburst maxpoll 9 27148456Spjd 28148456Spjd# 29148456Spjd# If you want to pick yourself which country's public NTP server 30148456Spjd# you want sync against, comment out the above servers, uncomment 31148456Spjd# the next ones and replace CC with the country's abbreviation. 32148456Spjd# Make sure that the hostnames resolve to a proper IP address! 33148456Spjd# 34148456Spjd# server 0.CC.pool.ntp.org iburst maxpoll 9 35148456Spjd# server 1.CC.pool.ntp.org iburst maxpoll 9 36148456Spjd# server 2.CC.pool.ntp.org iburst maxpoll 9 37148456Spjd 38148456Spjd# 39148456Spjd# Security: Only accept NTP traffic from the following hosts. 40148456Spjd# The following configuration example only accepts traffic from the 41148456Spjd# above defined servers. 42148456Spjd# 43148456Spjd# Please note that this example doesn't work for the servers in 44148456Spjd# the pool.ntp.org domain since they return multiple A records. 45148456Spjd# (This is the reason that by default they are commented out) 46148456Spjd# 47148456Spjd#restrict default ignore 48148456Spjd#restrict 0.pool.ntp.org nomodify nopeer noquery notrap 49148456Spjd#restrict 1.pool.ntp.org nomodify nopeer noquery notrap 50148456Spjd#restrict 2.pool.ntp.org nomodify nopeer noquery notrap 51148456Spjd#restrict 127.0.0.1 52148456Spjd#restrict -6 ::1 53148456Spjd#restrict 127.127.1.0 54148456Spjd 55148456Spjd# 56148456Spjd# If a server loses sync with all upstream servers, NTP clients 57148456Spjd# no longer follow that server. The local clock can be configured 58148456Spjd# to provide a time source when this happens, but it should usually 59148456Spjd# be configured on just one server on a network. For more details see 60161127Spjd# http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock 61148456Spjd# The use of Orphan Mode may be preferable. 62148456Spjd# 63148456Spjd#server 127.127.1.0 64148456Spjd#fudge 127.127.1.0 stratum 10 65148456Spjd