Changes

Network Time Protocol Network Time Protocol Daemon Also referred to as ntpd because it's a daemon. There's a new system called [https://wiki.archlinux.org/index.php/Systemd-timesyncd systemd-timesyncd] (Is it default now on Ubuntu?) ntpd is more accurate <ref>https://digitalbarbedwire.com/2015/05/16/debianubuntu-systemd-ntp-and-something-called-timesyncd/</ref> so it's better to stick with that if you have a system that is RTOS. Timesyncd is a client-only implementation and may be more suitable for most installations. If you don't know what time it is, then how can you run [[cron]]?! Don't let your system get out of sync.  See * http://doc.ntp.org/4.2.6/ntpd.html?advanced=on Docs* https://help.ubuntu.com/lts/serverguide/NTP.html* https://wiki.archlinux.org/index.php/Network_Time_Protocol_daemon* https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-ubuntu-16-04* https://www.us-cert.gov/ncas/current-activity/2017/03/22/Vulnerabilities-Identified-Network-Time-Protocol-Daemon-ntpd {{References}}