На сервере установил пакет ntp
ntp.conf
cat ntp.conf
#
# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available. The
# default stratum is usually 3, but in this case we elect to use stratum
# 0. Since the server line does not have the prefer keyword, this driver
# is never used for synchronization, unless no other other
# synchronization source is available. In case the local host is
# controlled by some external source, such as an external oscillator or
# another protocol, the prefer keyword would cause the local host to
# disregard all other synchronization sources, unless the kernel
# modifications are in use and declare an unsynchronized condition.
#
#server 127.127.1.0 # local clock
# Servers for Moscow region
server 195.2.64.5 minpoll 10 maxpoll 14
server ntp0.zenon.net minpoll 10 maxpoll 14
server ntp1.zenon.net minpoll 10 maxpoll 14
server news-zero.demos.su minpoll 10 maxpoll 14
server ntp.psn.ru minpoll 10 maxpoll 14
server news.demos.su minpoll 10 maxpoll 14
# Server for Kiev region
#server ntp.lucky.net minpoll 10 maxpoll 14
#Other servers
#server clock.via.net minpoll 10 maxpoll 14
#server pool.ntp.org minpoll 10 maxpoll 14
#For obtain list of time-servers please proceed to
#http://www.eecis.udel.edu/~mills/ntp/clock1.htm
#http://www.eecis.udel.edu/~mills/ntp/clock2.htm
# You can also request your provider about regional time server name.
fudge 127.127.1.0 stratum 10
#
# Drift file. Put this in a directory which the daemon can write to.
# No symbolic links allowed, either, since the daemon updates the file
# by creating a temporary in the same directory and then rename()'ing
# it to the file.
#
driftfile /etc/ntp/drift
#multicastclient # listen on default 224.0.1.1
broadcastdelay 0.008
# RESTRICTIONS
# ============
# By default, don't trust and don't allow modifications. Ignore in fact.
restrict default ignore notrust nomodify
# Allow others in our subnet to check us out...
#restrict 11.22.33.0 mask 255.255.255.0 nomodify notrust
# Trust our peers for time. Don't trust others in case they are insane.
#restrict 127.127.27.0 nomodify
#restrict 11.22.33.4 nomodify
#restrict 11.22.33.9 nomodify
# Allow anything from the local host.
restrict 127.0.0.1
# Allow synchronization source from NTP server
# Servers for Moscow region
restrict 195.2.64.5
restrict ntp1.zenon.net
restrict news-zero.demos.su
restrict ntp.psn.ru
restrict news.demos.su
# Server for Kiev region
#restrict ntp.lucky.net
#Other servers
#restrict clock.via.net
#restrict pool.ntp.org
#
# Authentication delay. If you use, or plan to use someday, the
# authentication facility you should make the programs in the auth_stuff
# directory and figure out what this number should be on your machine.
#
authenticate no
#
# Keys file. If you want to diddle your server at run time, make a
# keys file (mode 600 for sure) and define the key number to be
# used for making requests.
#
# PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or remote
# systems might be able to reset your clock at will. Note also that
# ntpd is started with a -A flag, disabling authentication, that
# will have to be removed as well.
#
#keys /etc/ntp/keys
service ntpd start
что дальше???
