目錄centos7安裝chronyd服務Centos7使用chronyd進行時鐘同步安裝配置文件啟動服務及時區設置驗證服務手動同步時間手動設置時間總結centos7安裝chronyd服務

一、雙節點部署:

ip主機名192.168.100.10controller192.168.100.20compute

二、配置時間同步

1、雙節點安裝chrony服務（這里是使用本地的軟件包進行yum安裝）

[root@controller ~]# yum install -y chrony[root@compute ~]# yum install -y chrony

2、controller修改chrony服務配置文件（在/etc/chrony.conf目錄下）

[root@controller ~]# vi /etc/chrony.conf # Use public servers from the pool.ntp.org project.# Please consider joining the pool (http://www.pool.ntp.org/join.html).#server 0.centos.pool.ntp.org iburst //添加#號#server 1.centos.pool.ntp.org iburst //添加#號#server 2.centos.pool.ntp.org iburst //添加#號#server 3.centos.pool.ntp.org iburst //添加#號server controller iburst //添加這一行# Record the rate at which the system clock gains/losses time.driftfile /var/lib/chrony/drift# Allow the system clock to be stepped in the first three updates# if its offset is larger than 1 second.makestep 1.0 3# Enable kernel synchronization of the real-time clock (RTC).rtcsync# Enable hardware timestamping on all interfaces that support it.#hwtimestamp *# Increase the minimum number of selectable sources required to adjust# the system clock.#minsources 2# Allow NTP client access from local network.allow all //去掉#號# Serve time even if not synchronized to a time source.local stratum 10 //去掉#號# Specify file containing keys for NTP authentication.#keyfile /etc/chrony.keys# Specify directory for log files.logdir /var/log/chrony# Select which information is logged.#log measurements statistics tracking

3、compute 修改chrony配置文件

[root@compute ~]# vi /etc/chrony.conf # Use public servers from the pool.ntp.org project.# Please consider joining the pool (http://www.pool.ntp.org/join.html).#server 0.centos.pool.ntp.org iburst#server 1.centos.pool.ntp.org iburst#server 2.centos.pool.ntp.org iburst#server 3.centos.pool.ntp.org iburstserver 192.168.100.10 iburst //添加這一行# Record the rate at which the system clock gains/losses time.driftfile /var/lib/chrony/drift# Allow the system clock to be stepped in the first three updates# if its offset is larger than 1 second.makestep 1.0 3# Enable kernel synchronization of the real-time clock (RTC).rtcsync# Enable hardware timestamping on all interfaces that support it.#hwtimestamp *# Increase the minimum number of selectable sources required to adjust# the system clock.#minsources 2# Allow NTP client access from local network.#allow 192.168.0.0/16# Serve time even if not synchronized to a time source.#local stratum 10# Specify file containing keys for NTP authentication.#keyfile /etc/chrony.keys# Specify directory for log files.logdir /var/log/chrony# Select which information is logged.#log measurements statistics tracking

4、雙節點重啟服務，并設置開機自啟

[root@controller ~]# systemctl restart chronyd && systemctl enable chronyd[root@compute ~]# systemctl restart chronyd && systemctl enable chronyd

5、controller開啟ntp同步

[root@controller ~]# timedatectl set-ntp true

6、雙節點執行chronyc sources命令，結果中存在以^*開頭的行，則同步成功

[root@controller ~]# chronyc sources210 Number of sources = 1MS Name/IP address Stratum Poll Reach LastRx Last sample ===============================================================================^* controller 10 6 377 27 +186ns[-8404ns] +/- 17us[root@compute ~]# chronyc sources210 Number of sources = 1MS Name/IP address Stratum Poll Reach LastRx Last sample ===============================================================================^* controller 10 6 17 34 -4280ns[ -13us] +/- 328usCentos7使用chronyd進行時鐘同步

最近要做阿里云遷移 IDC 機房，整理下 Linux 運維基線，簡單記錄，以備后用~

安裝# 默認已經安裝$ yum install -y chrony配置文件$ cat /etc/chrony.conf# Use public servers from the pool.ntp.org project.# Please consider joining the pool (http://www.pool.ntp.org/join.html).# 國家服務器server 0.cn.pool.ntp.orgserver 1.cn.pool.ntp.orgserver 2.cn.pool.ntp.orgserver 3.cn.pool.ntp.org# 阿里server ntp.aliyun.com# 騰訊server time1.cloud.tencent.comserver time2.cloud.tencent.comserver time3.cloud.tencent.comserver time4.cloud.tencent.comserver time5.cloud.tencent.com# 蘋果server time.asia.apple.com# 微軟server time.windows.com# 其他server cn.ntp.org.cn# Record the rate at which the system clock gains/losses time.driftfile /var/lib/chrony/drift# Allow the system clock to be stepped in the first three updates# if its offset is larger than 1 second.makestep 1.0 3# Enable kernel synchronization of the real-time clock (RTC).rtcsync# Enable hardware timestamping on all interfaces that support it.#hwtimestamp *# Increase the minimum number of selectable sources required to adjust# the system clock.#minsources 2# Allow NTP client access from local network.#allow 192.168.0.0/16# Serve time even if not synchronized to a time source.#local stratum 10# Specify file containing keys for NTP authentication.#keyfile /etc/chrony.keys# Specify directory for log files.logdir /var/log/chrony# Select which information is logged.#log measurements statistics tracking啟動服務及時區設置# 啟動服務$ systemctl start chronyd# 開機啟動$ systemctl enable chronyd# 查看當前狀態$ systemctl status chronyd# 查看亞洲時區$ timedatectl list-timezones | grep Asia# 設置時區$ timedatectl set-timezone Asia/Shanghai驗證服務# 查看現有的時間服務器$ chronyc sources -v# 查看時間服務器狀態$ chronyc sourcestats -v# 顯示時鐘同步相關參數$ chronyc tracking# 查看當前時區及時間$ timedatectl?手動同步時間# 使用 ntpdate 同步時間$ ntpdate ntp.aliyun.com# chronyd 未啟動時，如下命令同步時間$ chronyd -q 'server pool.ntp.org iburst'# chronyd 啟動時，使用如下命令同步時間$ chronyc -a 'burst 4/4' && sleep 10 && chronyc -a makestep手動設置時間# date 設置時間$ date -s '2021-06-03 19:00:00'# 關閉 ntp 同步后，才可以使用 timedatectl 進行時間設置$ timedatectl set-ntp false# 設置日期和時間$ timedatectl set-time '2021-06-03 19:00:00'# 設置日期$ timedatectl set-time '2021-06-03'# 設置時間$ timedatectl set-time '19:00:00'# 設置完成后，再開啟$ timedatectl set-ntp true總結

以上為個人經驗，希望能給大家一個參考，也希望大家多多支持好吧啦網。