1、简单介绍
2、服务安装
2.1、安装服务
apt install chrony
2.2、参数配置
sed -i 's@server@#server@g' /etc/chrony.conf
echo -e "server ntpupdate.tencentyun.com iburst" >> /etc/chrony.conf
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
# servers
server ntpupdate.tencentyun.com iburst
# 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
3、开始同步
3.1、设置时区
timedatectl set-timezone Asia/Shanghai
3.2、开启ntp同步
timedatectl set-ntp yes
3.3、开始同步
systemctl restart chrony
chronyc sources
root@l:/data/liu/git/zgj_toutiao# systemctl restart chrony
root@l:/data/liu/git/zgj_toutiao# chronyc sources
210 Number of sources = 5
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^? 169.254.0.79 2 6 1 2 -26us<span class="token punctuation">[ -26us<span class="token punctuation">] +/- 22ms
^? 169.254.0.80 2 6 1 1 +1309ns<span class="token punctuation">[+1309ns<span class="token punctuation">] +/- 26ms
^? 169.254.0.81 2 6 1 1 -103us<span class="token punctuation">[ -103us<span class="token punctuation">] +/- 28ms
^? 169.254.0.82 2 6 1 1 +62us<span class="token punctuation">[ +62us<span class="token punctuation">] +/- 39ms
^? 169.254.0.83 2 6 1 1 -356us<span class="token punctuation">[ -356us<span class="token punctuation">] +/- 37ms
