Synchronize date and time: Difference between revisions
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[[Category:Ubuntu System]] | [[Category:Ubuntu System]] | ||
[[Category:201708]] | [[Category:201708]] | ||
= timedatectl = | |||
<syntaxhighlight lang=bash> | |||
#check state and settings | |||
timedatectl | |||
#turn sync on, it could take some minutes to sync | |||
sudo timedatectl set-ntp true | |||
</syntaxhighlight> | |||
= Ubuntu upgrades to 14.04 = | |||
Source: | Source: | ||
* https:// | * https://help.ubuntu.com/lts/serverguide/NTP.html | ||
An Ubuntu upgrade keeps the ntpdate configuration intact and timedatectl is turned on but not synchronizing. Since ntpdate is depreciated you can manually uninstall it and replace it with ntp. | |||
<syntaxhighlight lang=bash> | |||
#uninstall ntpdate | |||
sudo apt-get autoremove ntpdate | |||
#install ntp daemon (ntpd) | |||
sudo apt install ntp | |||
</syntaxhighlight> | |||
Force update now: | |||
<syntaxhighlight lang=bash> | |||
sudo service ntp stop | |||
#correct the time regardless of the offset (g) and exit immediately (q) | |||
sudo ntpd -gq | |||
sudo service ntp start | |||
</syntaxhighlight> | |||
Check state and settings: | |||
<syntaxhighlight lang=bash> | <syntaxhighlight lang=bash> | ||
timedatectl | |||
</syntaxhighlight> | </syntaxhighlight> | ||
See also | See also | ||
* https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-ubuntu-16-04 | * https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-ubuntu-16-04 | ||
= ntpdate (depreciated) = | |||
Source: | |||
* https://askubuntu.com/questions/228/how-to-set-ubuntu-to-synchronize-my-clock-with-a-time-server | |||
<syntaxhighlight lang=bash> | <syntaxhighlight lang=bash> | ||
sudo | sudo ntpdate pool.ntp.org | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Latest revision as of 20:21, 18 August 2017
timedatectl
#check state and settings timedatectl #turn sync on, it could take some minutes to sync sudo timedatectl set-ntp true
Ubuntu upgrades to 14.04
Source:
An Ubuntu upgrade keeps the ntpdate configuration intact and timedatectl is turned on but not synchronizing. Since ntpdate is depreciated you can manually uninstall it and replace it with ntp.
#uninstall ntpdate sudo apt-get autoremove ntpdate #install ntp daemon (ntpd) sudo apt install ntp
Force update now:
sudo service ntp stop #correct the time regardless of the offset (g) and exit immediately (q) sudo ntpd -gq sudo service ntp start
Check state and settings:
timedatectl
See also
ntpdate (depreciated)
Source:
sudo ntpdate pool.ntp.org
