나는 다음 명령을 사용합니다.
$ sudo date
Sat Dec 10 23:13:11 IRST 2016
$ sudo date -s '2009-02-13 11:31:30'
Fri Feb 13 11:31:30 IRST 2009
$ sudo date
Sat Dec 10 23:13:18 IRST 2016
하지만 내 날짜와 시간은 변경되지 않습니다. 내 프로세스는 다음과 같습니다.
$ ps -e
PID TTY TIME CMD
1 ? 00:00:02 systemd
2 ? 00:00:00 kthreadd
3 ? 00:00:00 ksoftirqd/0
5 ? 00:00:00 kworker/0:0H
7 ? 00:00:06 rcu_sched
8 ? 00:00:00 rcu_bh
9 ? 00:00:00 migration/0
10 ? 00:00:00 watchdog/0
11 ? 00:00:00 kdevtmpfs
12 ? 00:00:00 netns
13 ? 00:00:00 perf
14 ? 00:00:00 khungtaskd
15 ? 00:00:00 writeback
16 ? 00:00:00 ksmd
17 ? 00:00:04 khugepaged
18 ? 00:00:00 crypto
19 ? 00:00:00 kintegrityd
20 ? 00:00:00 bioset
21 ? 00:00:00 kblockd
22 ? 00:00:00 ata_sff
23 ? 00:00:00 md
24 ? 00:00:00 devfreq_wq
27 ? 00:00:02 kswapd0
28 ? 00:00:00 vmstat
29 ? 00:00:00 fsnotify_mark
30 ? 00:00:00 ecryptfs-kthrea
46 ? 00:00:00 kthrotld
47 ? 00:00:00 acpi_thermal_pm
48 ? 00:00:00 bioset
49 ? 00:00:00 bioset
50 ? 00:00:00 bioset
51 ? 00:00:00 bioset
52 ? 00:00:00 bioset
53 ? 00:00:00 bioset
54 ? 00:00:00 bioset
55 ? 00:00:00 bioset
56 ? 00:00:00 bioset
57 ? 00:00:00 bioset
58 ? 00:00:00 bioset
59 ? 00:00:00 bioset
60 ? 00:00:00 bioset
61 ? 00:00:00 bioset
62 ? 00:00:00 bioset
63 ? 00:00:00 bioset
64 ? 00:00:00 bioset
65 ? 00:00:00 bioset
66 ? 00:00:00 bioset
67 ? 00:00:00 bioset
68 ? 00:00:00 bioset
69 ? 00:00:00 bioset
70 ? 00:00:00 bioset
71 ? 00:00:00 bioset
77 ? 00:00:00 ipv6_addrconf
91 ? 00:00:00 deferwq
92 ? 00:00:00 charger_manager
129 ? 00:00:00 bioset
130 ? 00:00:00 bioset
131 ? 00:00:00 bioset
132 ? 00:00:00 bioset
133 ? 00:00:00 bioset
134 ? 00:00:00 bioset
135 ? 00:00:00 scsi_eh_0
136 ? 00:00:00 bioset
137 ? 00:00:00 scsi_tmf_0
138 ? 00:00:00 bioset
139 ? 00:00:00 scsi_eh_1
140 ? 00:00:00 scsi_tmf_1
141 ? 00:00:00 scsi_eh_2
142 ? 00:00:00 scsi_tmf_2
143 ? 00:00:00 scsi_eh_3
144 ? 00:00:00 scsi_tmf_3
146 ? 00:00:00 scsi_eh_4
148 ? 00:00:00 scsi_tmf_4
151 ? 00:00:00 scsi_eh_5
152 ? 00:00:00 scsi_tmf_5
156 ? 00:00:00 kfd_process_wq
157 ? 00:00:00 ttm_swap
158 ? 00:00:00 radeon-crtc
159 ? 00:00:00 radeon-crtc
160 ? 00:00:00 bioset
182 ? 00:00:00 kworker/0:1H
184 ? 00:00:00 jbd2/sda1-8
185 ? 00:00:00 ext4-rsv-conver
220 ? 00:00:00 systemd-journal
222 ? 00:00:00 kauditd
272 ? 00:00:00 systemd-udevd
429 ? 00:00:00 systemd-timesyn
435 ? 00:00:00 edac-poller
523 ? 00:00:00 kvm-irqfd-clean
601 ? 00:00:00 whoopsie
607 ? 00:00:00 rsyslogd
610 ? 00:00:00 acpid
617 ? 00:00:00 avahi-daemon
623 ? 00:00:00 ModemManager
636 ? 00:00:01 dbus-daemon
673 ? 00:00:00 avahi-daemon
685 ? 00:00:00 NetworkManager
690 ? 00:00:00 snapd
696 ? 00:00:00 systemd-logind
699 ? 00:00:00 cups-browsed
702 ? 00:00:00 cron
703 ? 00:00:00 accounts-daemon
789 ? 00:00:00 polkitd
833 ? 00:00:00 lightdm
850 tty7 00:05:44 Xorg
862 ? 00:00:00 php-fpm7.0
865 ? 00:00:00 php-fpm7.0
866 ? 00:00:00 php-fpm7.0
868 ? 00:00:00 dhclient
881 ? 00:00:00 dnsmasq
1121 tty1 00:00:00 agetty
1145 ? 00:00:00 iprt-VBoxWQueue
1181 ? 00:00:00 rtkit-daemon
1212 ? 00:00:00 lightdm
1267 ? 00:00:00 systemd
1270 ? 00:00:00 (sd-pam)
1275 ? 00:00:00 gnome-keyring-d
1277 ? 00:00:00 upstart
1341 ? 00:00:00 upstart-udev-br
1348 ? 00:00:01 dbus-daemon
1417 ? 00:00:00 gpg-agent
1420 ? 00:00:00 upstart-dbus-br
1422 ? 00:00:00 upstart-dbus-br
1425 ? 00:00:00 upstart-file-br
1435 ? 00:00:00 sh
1446 ? 00:00:00 xfce4-session
1453 ? 00:00:00 xfconfd
1459 ? 00:00:37 xfwm4
1463 ? 00:00:25 xfce4-panel
1467 ? 00:00:11 xfdesktop
1468 ? 00:00:01 blueman-applet
1471 ? 00:00:00 update-notifier
1476 ? 00:00:02 pulseaudio
1478 ? 00:00:00 polkit-gnome-au
1479 ? 00:00:00 light-locker
1480 ? 00:00:00 nm-applet
1485 ? 00:00:00 xfce4-volumed
1486 ? 00:00:00 applet.py
1492 ? 00:00:00 at-spi-bus-laun
1496 ? 00:00:00 gvfsd
1501 ? 00:00:00 gvfsd-fuse
1505 ? 00:00:00 dbus-daemon
1513 ? 00:00:01 at-spi2-registr
1517 ? 00:00:00 xfce4-power-man
1518 ? 00:00:01 xfsettingsd
1521 ? 00:00:00 upowerd
1577 ? 00:00:00 dconf-service
1598 ? 00:00:00 gvfs-udisks2-vo
1602 ? 00:00:00 udisksd
1604 ? 00:00:00 panel-14-places
1609 ? 00:00:00 panel-16-screen
1614 ? 00:00:00 gvfs-goa-volume
1620 ? 00:00:00 gvfs-mtp-volume
1621 ? 00:00:03 xfce4-xkb-plugi
1626 ? 00:00:00 gvfs-afc-volume
1627 ? 00:00:00 panel-4-systray
1632 ? 00:00:04 panel-10-cpugra
1634 ? 00:00:00 gvfs-gphoto2-vo
1635 ? 00:00:02 panel-19-weathe
1661 ? 00:00:00 upstart
1663 ? 00:00:00 indicator-messa
1664 ? 00:00:00 indicator-sound
1672 ? 00:00:00 indicator-appli
1727 ? 00:00:00 obexd
1807 ? 00:00:00 dbus-daemon
1839 ? 00:00:01 panel-6-indicat
1844 ? 00:00:00 upstart
2104 ? 00:00:00 gvfsd-metadata
2108 ? 00:00:00 gvfsd-trash
2198 ? 00:00:00 gconfd-2
2240 ? 00:00:00 kworker/u4:0
2349 ? 00:00:11 stardict
2351 ? 00:00:00 bonobo-activati
2563 ? 00:00:00 dbus-daemon
2885 ? 00:00:14 xfce4-terminal
2889 ? 00:00:00 gnome-pty-helpe
2890 pts/0 00:00:01 bash
2905 ? 00:00:00 dbus-daemon
2941 ? 00:00:00 gconfd-2
2968 ? 00:00:00 dbus-daemon
3048 ? 00:00:00 gvfsd
3246 ? 00:00:06 Thunar
3438 ? 00:00:00 dbus-daemon
3715 pts/6 00:00:00 bash
3730 ? 00:00:00 dbus-daemon
3800 ? 00:00:00 dbus-daemon
3841 ? 00:05:01 firefox
3931 ? 00:00:01 kworker/0:1
4035 ? 00:00:00 dbus-daemon
4048 ? 00:00:00 system-tools-ba
4052 ? 00:00:00 SystemToolsBack
4170 ? 00:00:00 dbus-daemon
4253 ? 00:00:00 kworker/u4:1
4358 ? 00:00:00 kworker/0:0
4381 pts/7 00:00:00 bash
4396 ? 00:00:00 dbus-daemon
4435 ? 00:00:00 kworker/0:2
4439 pts/6 00:00:00 ps
나는 가지고있다 xUbuntu 16.04.1 LTS:
$ uname -a
Linux wundoz 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
이 문제를 어떻게 해결하나요?
답변1
systemd-timesyncd 서비스(pid 429)가 시계를 현재 시간으로 업데이트하는 것 같습니다. 이 프로세스는 목록에 systemd-timesyn으로 표시되지만 ps 429전체 이름을 사용하면 표시됩니다.
이것을 실행하면 timedatectl status날짜와 시간에 대한 정보를 얻을 수 있습니다. 마지막으로 다음을 볼 수 있습니다:
Network time on: yes
NTP synchronized: no
systemd-timesyncd위의 "네트워크 시간"을 참조하세요.
ntp 서비스가 프로세스 목록에 없는 것 같으므로 systemd-timesyncd 서비스를 중지하면 시간/날짜를 변경할 수 있습니다.
내 컴퓨터에서는 네트워크 시간이 활성화되어 있지만 NTP는 그렇지 않습니다. 프로세스 목록에 ntp 관련 서비스(ntpdate 또는 ntpd)가 표시되지 않으므로 동일한 서비스가 귀하의 컴퓨터에 있을 것이라고 가정합니다.
systemd-timesyncd.service다음 명령을 실행하여 자세한 정보를 얻을 수 있습니다 .
#systemctl status systemd-timesyncd.service
위 명령의 출력은 아래와 같이 자동 업데이트 서버에 대한 정보를 제공합니다.
Status: "Synchronized to time server 196.10.52.57:123 (2.debian.pool.ntp.org)."
Ubuntu에서는 적어도 시작 시 ntpdate(ntpd) 서비스가 기본적으로 실행된다고 합니다. 실행 중인 ntp 서비스를 다시 확인 # top -p $(echo $(pgrep "nt") |sed 's/ /,/g')하고 실행 중인 ntp 관련 서비스가 있는지 확인할 수 있습니다(그렇지 않은 것 같습니다).
팁: 확인하면 timedatectl --help도구를 통해 시간을 설정하는 옵션이 표시됩니다 (테스트 timedatectl되지 않음 date -s).
CoreO에는좋은 기사날짜/시간 서비스에 대해