Changeset View
Changeset View
Standalone View
Standalone View
head/etc/ntp.conf
# | # | ||||
# $FreeBSD$ | # $FreeBSD$ | ||||
# | # | ||||
# Default NTP servers for the FreeBSD operating system. | # Default NTP servers for the FreeBSD operating system. | ||||
# | # | ||||
# Don't forget to enable ntpd in /etc/rc.conf with: | # Don't forget to enable ntpd in /etc/rc.conf with: | ||||
# ntpd_enable="YES" | # ntpd_enable="YES" | ||||
# | # | ||||
# The driftfile is by default /var/db/ntpd.drift, check | # The driftfile is by default /var/db/ntpd.drift, check | ||||
# /etc/defaults/rc.conf on how to change the location. | # /etc/defaults/rc.conf on how to change the location. | ||||
# | # | ||||
# | # | ||||
# The following three servers will give you a random set of three | # Set the target and limit for adding servers configured via pool statements | ||||
# NTP servers geographically close to you. | # or discovered dynamically via mechanisms such as broadcast and manycast. | ||||
# See http://www.pool.ntp.org/ for details. Note, the pool encourages | # Ntpd automatically adds maxclock-1 servers from configured pools, and may | ||||
# add as many as maxclock*2 if necessary to ensure that at least minclock | |||||
# servers are providing good consistant time. | |||||
# | |||||
tos minclock 3 maxclock 6 | |||||
# | |||||
# The following pool statement will give you a random set of NTP servers | |||||
# geographically close to you. A single pool statement adds multiple | |||||
# servers from the pool, according to the tos minclock/maxclock targets. | |||||
# See http://www.pool.ntp.org/ for details. Note, pool.ntp.org encourages | |||||
# users with a static IP and good upstream NTP servers to add a server | # users with a static IP and good upstream NTP servers to add a server | ||||
# to the pool. See http://www.pool.ntp.org/join.html if you are interested. | # to the pool. See http://www.pool.ntp.org/join.html if you are interested. | ||||
# | # | ||||
# The option `iburst' is used for faster initial synchronization. | # The option `iburst' is used for faster initial synchronization. | ||||
# | # | ||||
server 0.freebsd.pool.ntp.org iburst | pool 0.freebsd.pool.ntp.org iburst | ||||
server 1.freebsd.pool.ntp.org iburst | |||||
server 2.freebsd.pool.ntp.org iburst | |||||
#server 3.freebsd.pool.ntp.org iburst | |||||
# | # | ||||
# If you want to pick yourself which country's public NTP server | # If you want to pick yourself which country's public NTP server | ||||
# you want sync against, comment out the above servers, uncomment | # you want to sync against, comment out the above pool, uncomment | ||||
# the next ones and replace CC with the country's abbreviation. | # the next one, and replace CC with the country's abbreviation. | ||||
# Make sure that the hostnames resolve to a proper IP address! | # Make sure that the hostname resolves to a proper IP address! | ||||
# | # | ||||
# server 0.CC.pool.ntp.org iburst | # pool 0.CC.pool.ntp.org iburst | ||||
# server 1.CC.pool.ntp.org iburst | |||||
# server 2.CC.pool.ntp.org iburst | |||||
# | # | ||||
# To configure a specific server, such as an organization-wide local | |||||
# server, add lines similar to the following. One or more specific | |||||
# servers can be configured in addition to, or instead of, any server | |||||
# pools specified above. When both are configured, ntpd first adds all | |||||
# the specific servers, then adds servers from the pool until the tos | |||||
# minclock/maxclock targets are met. | |||||
# | |||||
#server time.my-internal.org iburst | |||||
# | |||||
# Security: | # Security: | ||||
# | # | ||||
# By default, only allow time queries and block all other requests | # By default, only allow time queries and block all other requests | ||||
# from unauthenticated clients. | # from unauthenticated clients. | ||||
# | # | ||||
# The "restrict source" line allows peers to be mobilized when added by | |||||
# ntpd from a pool, but does not enable mobilizing a new peer association | |||||
# by other dynamic means (broadcast, manycast, ntpq commands, etc). | |||||
# | |||||
# See http://support.ntp.org/bin/view/Support/AccessRestrictions | # See http://support.ntp.org/bin/view/Support/AccessRestrictions | ||||
# for more information. | # for more information. | ||||
# | # | ||||
restrict default limited kod nomodify notrap nopeer noquery | restrict default limited kod nomodify notrap noquery nopeer | ||||
restrict -6 default limited kod nomodify notrap nopeer noquery | restrict -6 default limited kod nomodify notrap noquery nopeer | ||||
restrict source limited kod nomodify notrap noquery | |||||
# | # | ||||
# Alternatively, the following rules would block all unauthorized access. | # Alternatively, the following rules would block all unauthorized access. | ||||
# | # | ||||
#restrict default ignore | #restrict default ignore | ||||
#restrict -6 default ignore | #restrict -6 default ignore | ||||
# | # | ||||
# In this case, all remote NTP time servers also need to be explicitly | # In this case, all remote NTP time servers also need to be explicitly | ||||
# allowed or they would not be able to exchange time information with | # allowed or they would not be able to exchange time information with | ||||
# this server. | # this server. | ||||
# | # | ||||
# Please note that this example doesn't work for the servers in | # Please note that this example doesn't work for the servers in | ||||
# the pool.ntp.org domain since they return multiple A records. | # the pool.ntp.org domain since they return multiple A records. | ||||
# | # | ||||
#restrict 0.pool.ntp.org nomodify nopeer noquery notrap | #restrict 0.pool.ntp.org nomodify nopeer noquery notrap | ||||
#restrict 1.pool.ntp.org nomodify nopeer noquery notrap | #restrict 1.pool.ntp.org nomodify nopeer noquery notrap | ||||
#restrict 2.pool.ntp.org nomodify nopeer noquery notrap | #restrict 2.pool.ntp.org nomodify nopeer noquery notrap | ||||
# | # | ||||
# The following settings allow unrestricted access from the localhost | # The following settings allow unrestricted access from the localhost | ||||
restrict 127.0.0.1 | restrict 127.0.0.1 | ||||
restrict -6 ::1 | restrict -6 ::1 | ||||
restrict 127.127.1.0 | |||||
# | # | ||||
# If a server loses sync with all upstream servers, NTP clients | # If a server loses sync with all upstream servers, NTP clients | ||||
# no longer follow that server. The local clock can be configured | # no longer follow that server. The local clock can be configured | ||||
# to provide a time source when this happens, but it should usually | # to provide a time source when this happens, but it should usually | ||||
# be configured on just one server on a network. For more details see | # be configured on just one server on a network. For more details see | ||||
# http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock | # http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock | ||||
# The use of Orphan Mode may be preferable. | # The use of Orphan Mode may be preferable. | ||||
Show All 10 Lines |