ntp.conf revision 195652 
1#
2# $FreeBSD: head/etc/ntp.conf 195652 2009-07-13 05:51:33Z dwmalone $
3#
4# Default NTP servers for the FreeBSD operating system.
5#
6# Don't forget to enable ntpd in /etc/rc.conf with:
7# ntpd_enable="YES"
8#
9# The driftfile is by default /var/db/ntpd.drift, check
10# /etc/defaults/rc.conf on how to change the location.
11#
12
13#
14# The following three servers will give you a random set of three
15# NTP servers geographically close to you.
16# See http://www.pool.ntp.org/ for details. Note, the pool encourages
17# users with a static IP and good upstream NTP servers to add a server
18# to the pool. See http://www.pool.ntp.org/join.html if you are interested.
19#
20# The option `iburst' is used for faster initial synchronisation.
21# The option `maxpoll 9' is used to prevent PLL/FLL flipping on FreeBSD.
22#
23server 0.freebsd.pool.ntp.org iburst maxpoll 9
24server 1.freebsd.pool.ntp.org iburst maxpoll 9
25server 2.freebsd.pool.ntp.org iburst maxpoll 9
26#server 3.freebsd.pool.ntp.org iburst maxpoll 9
27
28#
29# If you want to pick yourself which country's public NTP server
30# you want sync against, comment out the above servers, uncomment
31# the next ones and replace CC with the country's abbreviation.
32# Make sure that the hostnames resolve to a proper IP address!
33#
34# server 0.CC.pool.ntp.org iburst maxpoll 9
35# server 1.CC.pool.ntp.org iburst maxpoll 9
36# server 2.CC.pool.ntp.org iburst maxpoll 9
37
38#
39# Security: Only accept NTP traffic from the following hosts.
40# The following configuration example only accepts traffic from the
41# above defined servers.
42#
43# Please note that this example doesn't work for the servers in
44# the pool.ntp.org domain since they return multiple A records.
45# (This is the reason that by default they are commented out)
46#
47#restrict default ignore
48#restrict 0.pool.ntp.org nomodify nopeer noquery notrap
49#restrict 1.pool.ntp.org nomodify nopeer noquery notrap
50#restrict 2.pool.ntp.org nomodify nopeer noquery notrap
51#restrict 127.0.0.1
52#restrict -6 ::1
53#restrict 127.127.1.0
54
55#
56# If a server loses sync with all upstream servers, NTP clients
57# no longer follow that server. The local clock can be configured
58# to provide a time source when this happens, but it should usually
59# be configured on just one server on a network. For more details see
60# http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock
61# The use of Orphan Mode may be preferable.
62#
63#server 127.127.1.0
64#fudge 127.127.1.0 stratum 10
65