Centos7 NTP服务

修改时区(改为中国标准时区)ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime(如果在安装centos时指定过了 这一步就不用了)

timedatectl set-ntp no                         # 关闭ntp
timedatectl set-time "2018-07-05 15:06:00"    # 设置时间
timedatectl set-timezone Asia/Shanghai        # 设置时区
date                                        # 查看配置是否正确

1、安装ntp

yum -y install ntp
[root@cdh02 ntp]# yum install -y ntp
已加载插件:fastestmirror
Loading mirror speeds from cached hostfile
 * base: ftp.sjtu.edu.cn
 * extras: ftp.sjtu.edu.cn
 * updates: centosv8.centos.org
base                                                                                            | 3.6 kB  00:00:00     
extras                                                                                          | 2.9 kB  00:00:00     
updates                                                                                         | 2.9 kB  00:00:00     
(1/4): extras/7/x86_64/primary_db                                                               | 205 kB  00:00:05     
(2/4): base/7/x86_64/group_gz                                                                   | 153 kB  00:00:05     
(3/4): base/7/x86_64/primary_db                                                                 | 6.1 MB  00:00:12     
updates/7/x86_64/primary_db    FAILED                                                ]  734 B/s | 7.3 MB  01:07:38 ETA 
http://centosv8.centos.org/centos/7.8.2003/updates/x86_64/repodata/1c1cef9b9757d3f2013951752cad3bf93417ab30c1b8144b4d465df77510c502-primary.sqlite.bz2: [Errno 12] Timeout on http://centosv8.centos.org/centos/7.8.2003/updates/x86_64/repodata/1c1cef9b9757d3f2013951752cad3bf93417ab30c1b8144b4d465df77510c502-primary.sqlite.bz2: (28, 'Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds')
正在尝试其它镜像。
updates/7/x86_64/primary_db    FAILED                                                ] 3.4 kB/s | 7.7 MB  00:12:09 ETA 
http://centosu8.centos.org/centos/7.8.2003/updates/x86_64/repodata/1c1cef9b9757d3f2013951752cad3bf93417ab30c1b8144b4d465df77510c502-primary.sqlite.bz2: [Errno 14] curl#18 - "transfer closed with 2541101 bytes remaining to read"
正在尝试其它镜像。
(4/4): updates/7/x86_64/primary_db                                                              | 3.8 MB  00:14:30     
正在解决依赖关系
--> 正在检查事务
---> 软件包 ntp.x86_64.0.4.2.6p5-29.el7.centos.2 将被 安装
--> 正在处理依赖关系 libopts.so.25()(64bit),它被软件包 ntp-4.2.6p5-29.el7.centos.2.x86_64 需要
--> 正在检查事务
---> 软件包 autogen-libopts.x86_64.0.5.18-5.el7 将被 安装
--> 解决依赖关系完成

依赖关系解决

=======================================================================================================================
 Package                       架构                 版本                                   源                     大小
=======================================================================================================================
正在安装:
 ntp                           x86_64               4.2.6p5-29.el7.centos.2                updates               549 k
为依赖而安装:
 autogen-libopts               x86_64               5.18-5.el7                             base                   66 k

事务概要
=======================================================================================================================
安装  1 软件包 (+1 依赖软件包)

总下载量:615 k
安装大小:1.5 M
Downloading packages:
警告:/var/cache/yum/x86_64/7/base/packages/autogen-libopts-5.18-5.el7.x86_64.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID f4a80eb5: NOKEY
autogen-libopts-5.18-5.el7.x86_64.rpm 的公钥尚未安装
(1/2): autogen-libopts-5.18-5.el7.x86_64.rpm                                                    |  66 kB  00:00:03     
ntp-4.2.6p5-29.el7.centos.2.x8 FAILED                                                ]  1.6 B/s | 208 kB  74:11:17 ETA 
http://centost7.centos.org/centos/7.8.2003/updates/x86_64/Packages/ntp-4.2.6p5-29.el7.centos.2.x86_64.rpm: [Errno 12] Timeout on http://centost7.centos.org/centos/7.8.2003/updates/x86_64/Packages/ntp-4.2.6p5-29.el7.centos.2.x86_64.rpm: (28, 'Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds')
正在尝试其它镜像。
ntp-4.2.6p5-29.el7.centos.2.x86_64.rpm 的公钥尚未安装================================] 1.5 kB/s | 615 kB  00:00:00 ETA 
(2/2): ntp-4.2.6p5-29.el7.centos.2.x86_64.rpm                                                   | 549 kB  00:02:38     
-----------------------------------------------------------------------------------------------------------------------
总计                                                                                   2.3 kB/s | 615 kB  00:04:28     
从 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 检索密钥
导入 GPG key 0xF4A80EB5:
 用户ID     : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
 指纹       : 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
 软件包     : centos-release-7-8.2003.0.el7.centos.x86_64 (@anaconda)
 来自       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  正在安装    : autogen-libopts-5.18-5.el7.x86_64                                                                  1/2 
  正在安装    : ntp-4.2.6p5-29.el7.centos.2.x86_64                                                                 2/2 
  验证中      : autogen-libopts-5.18-5.el7.x86_64                                                                  1/2 
  验证中      : ntp-4.2.6p5-29.el7.centos.2.x86_64                                                                 2/2 

已安装:
  ntp.x86_64 0:4.2.6p5-29.el7.centos.2                                                                                 

作为依赖被安装:
  autogen-libopts.x86_64 0:5.18-5.el7                                                                                  

完毕!
[1]   已杀死               yum install -y ntd

 

2、ntp主机配置 vi /etc/ntp.conf

主节点

其他节点

       

 

restrict 10.0.0.0 mask 255.255.255.0       #允许10.0.0.0 网段中的服务器访问本ntp服务器进行时间同步

 

 3、重新启动 ntp 服务

service ntpd restart

 4、设置开机自启

systemctl enable ntpd.service
ntpdc -c loopinfo #查看与时间同步服务器的时间偏差
ntpq -p #查看当前同步的时间服务器
ntpstat #查看状态
定时同步crontab
crontab -e
10 * * * * /usr/sbin/ntpdate n47.aa-data.cn

5、查看服务器状态

systemctl status ntpd.service

6、同步时间

ntpstat

 

 

 

主节点

 

 其他节点

 

 

 

posted @ 2020-08-07 22:00  桥头堡洗脚城  阅读(718)  评论(0编辑  收藏  举报