TIMESYNCD.CONF(5) timesyncd.conf TIMESYNCD.CONF(5) timesyncd.conf timesyncd.conf.d - /etc/systemd/timesyncd.conf /run/systemd/timesyncd.conf /usr/local/lib/systemd/timesyncd.conf /usr/lib/systemd/timesyncd.conf /etc/systemd/timesyncd.conf.d/*.conf /run/systemd/timesyncd.conf.d/*.conf /usr/local/lib/systemd/timesyncd.conf.d/*.conf /usr/lib/systemd/timesyncd.conf.d/*.conf NTP. systemd.syntax(7) . . : /etc/systemd/ /run/systemd/ /usr/local/lib/systemd/ [1] /usr/lib/systemd/. . (drop-ins) . ( /etc/ /usr/) . /usr/lib/systemd/*.conf.d/ /usr/local/lib/systemd/*.conf.d/ /etc/systemd/*.conf.d/. . *.conf.d/ . . (drop-ins) /usr/. /etc/ . . . . . 10-40 /usr/ 60-90 /etc/ /run/ . /dev/null /etc/ . [Time]: NTP= NTP IP. NTP systemd-networkd.service(8). systemd-timesyncd . NTP . . 216. FallbackNTP= NTP IP NTP . NTP systemd-networkd.service(8) NTP= . NTP . NTP . NTP . 216. RootDistanceMaxSec= . systemd-timesyncd . . systemd.time(7). 5 . 236. PollIntervalMinSec= PollIntervalMaxSec= NTP. . . systemd.time(7). PollIntervalMinSec= 32 16 . PollIntervalMaxSec= 34 8 (2048 ) PollIntervalMinSec=. 236. ConnectionRetrySec= NTP . . systemd.time(7). 30 . 248. SaveIntervalSec= NTP. RTC . . systemd.time(7). 60 . 250. systemd(1) systemd-timesyncd.service(8) systemd-networkd.service(8) 1. . /usr/local/ . 3 . . : . systemd 260.2 TIMESYNCD.CONF(5)