Linux Debian NTP

• official doc

https://wiki.debian.org/fr/NTP

NTP

installation

• install ntpdate package

apt-get install ntp

Configuration

• configuration file /etc/ntp.conf

# logs 
statsdir /var/log/ntpstats/
# server list
server 0.fr.pool.ntp.org
server 1.fr.pool.ntp.org
server 2.fr.pool.ntp.org
server 3.fr.pool.ntp.org

restart service

/etc/init.d/ntp restart

NTPDATE (deprecated)

it is not a service it has to be run manually or added to cron

installation

• install ntpdate package

apt-get install ntpdate

Configuration

• configuration file /etc/default/ntpdate

#Enable
NTPDATE_USE_NTP_CONF=yes
#Server
NTPSERVERS="ntp.free.fr"
#Options
NTPOPTIONS=""

Options

• ajustement progressiv

ntpdate -B  {serverAdress}

• ajustement brutal

ntpdate -b  {serverAdress}

• ajustement with log

ntpdate -s  {serverAdress}