TIMESYNCD.CONF(5) timesyncd.conf TIMESYNCD.CONF(5) (NAME) timesyncd.conf, timesyncd.conf.d - (SYNOPSIS) /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 (DESCRIPTION) NTP . systemd.syntax(7) . (CONFIGURATION DIRECTORIES AND PRECEDENCE) . : /etc/systemd/ /run/systemd/ /usr/local/lib/systemd/ [1] /usr/lib/systemd/. (vendor) . (drop-in) . ( /etc/ /usr/ ) (drop-in) . (drop-in) /usr/lib/systemd/*.conf.d/ /usr/local/lib/systemd/*.conf.d/ /etc/systemd/*.conf.d/ . (override) . *.conf.d/ (lexicographic) . . (drop-in) /usr/ . /etc/ . . . . . 10-40 /usr/ 60-90 /etc/ /run/ . (symlink) /dev/null /etc/ . (OPTIONS) [Time] : NTP= IP NTP . NTP systemd- networkd.service(8) . systemd-timesyncd . NTP . . 216. FallbackNTP= IP NTP NTP (fallback). NTP systemd-networkd.service(8) NTP= . NTP . NTP . NTP . 216. RootDistanceMaxSec= (root distance) . systemd-timesyncd . . systemd.time(7) . 5 . 236. PollIntervalMinSec=, PollIntervalMaxSec= (poll interval) NTP. . . systemd.time(7) . PollIntervalMinSec= 32 16 . PollIntervalMaxSec= 34 8 (2048 ) PollIntervalMinSec= . 236. ConnectionRetrySec= NTP . . systemd.time(7) . 30 1 . 248. SaveIntervalSec= NTP. (RTC) (monotonic) . . systemd.time(7) . 60 . 250. (SEE ALSO) systemd(1), systemd-timesyncd.service(8), systemd-networkd.service(8) (NOTES) 1. . /usr/local/ . systemd 261.2 TIMESYNCD.CONF(5)