How to set the current time for linux time zone synchronization ?, Linux time zone

How to set the current time for linux time zone synchronization ?, Linux time zone

Set the current time for linux time zone Synchronization

I. Time Zone

1. view the current time zone

Date-R

2. Modify the time zone

Method (1) tzselect

Method (2) Limited to RedHat Linux and CentOS

Timeconfig

Method (3) applicable to Debian

Dpkg-reconfigure tzdata

3. Copy the corresponding time zone file to replace the system time zone file. Alternatively, create the link file cp/usr/share/zoneinfo/$ main Time Zone/$ Time Zone/etc/localtime

Available in China:

Cp/usr/share/zoneinfo/Asia/Shanghai/etc/localtime

Ii. Time

1. view the time and date

Date

2. Set the time and date

Set the system date to the June 10, 1996 command date-s 06/22/96

Set the system time to 01:52:00 P.M..

3. Write the current time and date to the BIOS to prevent failure after restart

Hwclock-w

3. Scheduled synchronization time (added in/etc/crontab)

* ***/Usr/sbin/ntpdate 210.72.145.44>/dev/null 2> & 1

In addition:

1. manual synchronization:

Ntpdate 210.72.145.44 #210.72.145.44 provided by Xi'an Emy of Sciences

Ntpdate 219.158.14.130 # provided by Beijing Netcom

2. After synchronization, write the time information to the bios

Hwclock-w

3. For centos systems, use yum install ntp to update ntpdate without the command;