Debian 系统时间配置（NTP）

柔情只为你懂 2022-10-10 12:39 298阅读 0赞

## 系统时间NTP和RTC同步，Debian的时区配置 ##

系统及架构：  
Linux Matrix\_061001 5.10.42-yocto-standard \#1 Thu Jun 3 07:00:52 UTC 2021 armv7l armv7l armv7l GNU/Linux

参考文章：  
[https://www.cnblogs.com/aaronLinux/p/7732542.html][https_www.cnblogs.com_aaronLinux_p_7732542.html]  
[https://blog.csdn.net/weixin\_41528941/article/details/103504178][https_blog.csdn.net_weixin_41528941_article_details_103504178]

**A. 更新源，并安装ntpdate**

[root@Matrix_061001 ~]apt-get update
    [root@Matrix_061001 ~]
    [root@Matrix_061001 ~]apt-get install ntpdate
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    The following NEW packages will be installed:
      ntpdate
    0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
    Need to get 52.4 kB of archives.
    After this operation, 0 B of additional disk space will be used.
    Get:1 http://www.artila.com/download/sama5/linux/deb/cortexa5t2hf-vfp cortexa5t2hf-vfp/main armhf ntpdate armhf 4.2.8p15-r0 [52.4 kB]
    Fetched 52.4 kB in 6s (8264 B/s)                                                                                                                                      
    Selecting previously unselected package ntpdate.
    (Reading database ... 32438 files and directories currently installed.)
    Preparing to unpack .../ntpdate_4.2.8p15-r0_armhf.deb ...
    Unpacking ntpdate (4.2.8p15-r0) ...
    Setting up ntpdate (4.2.8p15-r0) ...
    adding crontab
    [root@Matrix_061001 ~]

**B. 与ntp server同步系统时间，发现设备时区问题**

[root@Matrix_061001 ~]ntpdate ntp1.aliyun.com
    28 Jun 01:33:37 ntpdate[636]: step time server 120.25.115.20 offset +58409.431346 sec
    [root@Matrix_061001 ~]date -R
    Sun, 27 Jun 2021 09:19:14 +0000
    [root@Matrix_061001 ~]

**C. 修改时区**

1.  修改设置Linux服务器时区
    
    方法 A 命令 ： “tzselect”
    
    方法 B 仅限于RedHat Linux 和 CentOS 命令 ： “timeconfig”
    
    方法 C 适用于Debian 命令 ： “dpkg-reconfigure tzdata”
2.  通过/etc/profile来修改
    
    echo “export TZ=‘UTC’” >> /etc/profile
    
    source /etc/profile 更新系统变量
    
    采用本方式进行修改时区配置
    
        [root@Matrix_061001 ~]echo "export TZ='Asia/Shanghai'" >> /etc/profile
        [root@Matrix_061001 ~]source /etc/profile
3.  复制相应的时区文件，替换系统时区文件；或者创建链接文件
    
        cp /usr/share/zoneinfo/主时区/主时区/次时区 /etc/localtime
        例如：在设置中国时区使用亚洲/上海（+8）
        cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
        
        或者
        
        ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
        ln -sf /usr/share/zoneinfo/UTC /etc/localtime 设置为UTC时间

**D. NTP和RTC时间同步**

[root@Matrix_061001 ~]cat /etc/default/ntpdate
    #Configuration script used by ntpdate-sync script
    
    NTPSERVERS="ntp1.aliyun.com"
    
    #Set to "yes" to write time to hardware clock on success
    UPDATE_HWCLOCK="yes"
    
    [root@Matrix_061001 ~]#
    [root@Matrix_061001 ~]#

至此，系统重启后便会自动同步系统时间

___    ____ ____________    ___ 
       /   |  / __ |_  __/  _/ /   /   |
      / /| | / /_/ // /  / // /   / /| |
     / ___ |/ __ _// / _/ // /___/ ___ |
    /_/  |_/_/ |_|/_/ /___/_____/_/  |_|
    
                                        
    http://www.artila.com
    
    [root@Matrix_061001 ~]#
    [root@Matrix_061001 ~]#
    [root@Matrix_061001 ~]date -R
    Mon, 28 Jun 2021 12:54:56 +0800
    [root@Matrix_061001 ~]#

[https_www.cnblogs.com_aaronLinux_p_7732542.html]: https://www.cnblogs.com/aaronLinux/p/7732542.html
[https_blog.csdn.net_weixin_41528941_article_details_103504178]: https://blog.csdn.net/weixin_41528941/article/details/103504178