root@hk-confluence:~# apt-get install ntpdate

Reading package lists... Done

Building dependency tree

Reading state information... Done

ntpdate is already the newest version.

The following packages were automatically installed and are no longer required:

  linux-image-4.4.0-142-generic linux-image-4.4.0-143-generic

  linux-image-extra-4.4.0-142-generic linux-modules-4.4.0-143-generic

  linux-modules-extra-4.4.0-143-generic linux-modules-extra-4.4.0-144-generic

root@hk-confluence:~# ntpdate pool.ntp.org

30 May 02:05:42 ntpdate[3388]: the NTP socket is in use, exiting


# 报不认识的服务

root@hk-confluence:~# service ntpd stop

ntpd: unrecognized service

root@hk-confluence:~# systemctl ntpd stop

systemctl: command not found

root@hk-confluence:~# cat /etc/issue

Ubuntu 14.04.5 LTS \n \l


# 采用杀进程的办法来关闭程序

root@hk-confluence:~# ps -ef |grep ntp

ntp       2590     1  0 May23 ?        00:00:35 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -c /var/lib/ntp/ntp.conf.dhcp -u 106:111

root      3457  3332  0 02:07 pts/0    00:00:00 grep --color=auto ntp

root@hk-confluence:~# kill -9 2590


# 再次进行时间同步
root@hk-confluence:~# which ntpd

/usr/sbin/ntpd

root@hk-confluence:~# /usr/sbin/ntpdate ntp.api.bz

30 May 02:08:27 ntpdate[3489]: adjust time server 17.253.84.125 offset -0.000032 sec

root@hk-confluence:~# date

Thu May 30 02:08:29 UTC 2019

# 发现时区不对

root@hk-confluence:~# tzselect

Please identify a location so that time zone rules can be set correctly.

Please select a continent, ocean, "coord", or "TZ".

 1) Africa

 2) Americas

 3) Antarctica

 4) Arctic Ocean

 5) Asia

 6) Atlantic Ocean

 7) Australia

 8) Europe

 9) Indian Ocean

10) Pacific Ocean

11) coord - I want to use geographical coordinates.

12) TZ - I want to specify the time zone using the Posix TZ format.

#? 5

Please select a country whose clocks agree with yours.

 1) Afghanistan          18) Israel            35) Palestine

 2) Armenia          19) Japan            36) Philippines

 3) Azerbaijan          20) Jordan            37) Qatar

 4) Bahrain          21) Kazakhstan        38) Russia

 5) Bangladesh          22) Korea (North)        39) Saudi Arabia

 6) Bhutan          23) Korea (South)        40) Singapore

 7) Brunei          24) Kuwait            41) Sri Lanka

 8) Cambodia          25) Kyrgyzstan        42) Syria

 9) China          26) Laos            43) Taiwan

10) Cyprus          27) Lebanon            44) Tajikistan

11) East Timor          28) Macau            45) Thailand

12) Georgia          29) Malaysia            46) Turkmenistan

13) Hong Kong          30) Mongolia            47) United Arab Emirates

14) India          31) Myanmar (Burma)        48) Uzbekistan

15) Indonesia          32) Nepal            49) Vietnam

16) Iran          33) Oman            50) Yemen

17) Iraq          34) Pakistan

#? 9

Please select one of the following time zone regions.

1) Beijing Time

2) Xinjiang Time

#? 1

The following information has been given:

    China

    Beijing Time

Therefore TZ='Asia/Shanghai' will be used.

Local time is now:    Thu May 30 10:09:37 CST 2019.

Universal Time is now:    Thu May 30 02:09:37 UTC 2019.

Is the above information OK?

1) Yes

2) No

#? yes

Please enter a number in range.

#?

You can make this change permanent for yourself by appending the line

    TZ='Asia/Shanghai'; export TZ

to the file '.profile' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you

can use the /usr/bin/tzselect command in shell scripts:

Asia/Shanghai

root@hk-confluence:~# date

Thu May 30 02:09:47 UTC 2019

root@hk-confluence:~# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

root@hk-confluence:~# date

Thu May 30 10:12:03 CST 2019

root@hk-confluence:~# 

root@hk-confluence:~# hwclock --systohc