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  • 时间定时同步

    时间定时同步

    1.查看时区:timedatectl
    2.将硬件时钟调整为与本地时钟一致, 0 为设置为 UTC 时间:timedatectl set-local-rtc 1
    
    timedatectl set-timezone Asia/Shanghai 设置系统时区为上海
    3.timedatectl set-ntp no
    4.timedatectl set-time '2021-01-11 10:00:00'
    5.clock -w
    timedatectl set-local-rtc 1
    
    cd /etc/sysconfig/network-scripts
    vi ifcfg-eth0
    
    
    DNS2=172.20.7.9
    echo "DNS2=172.20.7.9" >>/etc/sysconfig/network-scripts/ifcfg-eth0
    cat /etc/sysconfig/network-scripts/ifcfg-eth0
    systemctl restart network
    ping ntp.zjhu.edu.cn
    
    yum -y install crontabs
    systemctl start crond.service
    systemctl enable crond.service
    systemctl status  crond.service
    
    crontab -e
    0 */2 * * * ntpdate ntp.zjhu.edu.cn
    */1 * * * * /sbin/ntpdate ntp.zjhu.edu.cn
    
    /sbin/ntpdate ntp.zjhu.edu.cn
    
    
    yum install -y ntpdate
    systemctl start ntpdate.service
    systemctl status ntpdate.service
    systemctl enable ntpdate.service
    
    find / -name CentOS-7.6-x86_64-DVD-1810.iso
    mount -o loop  /u01/CentOS-7.6-x86_64-DVD-1810.iso   /mnt
    mount -o loop  /u01/bak/CentOS-7.6-x86_64-DVD-1810.iso   /mnt
    
    mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak/
    
    echo "[base]" >> /etc/yum.repos.d/123.repo
    echo "name=123" >> /etc/yum.repos.d/123.repo
    echo "baseurl=file:///mnt" >> /etc/yum.repos.d/123.repo
    echo "gpgcheck=0" >> /etc/yum.repos.d/123.repo
    echo "enable=1" >> /etc/yum.repos.d/123.repo
    
    yum makecache
    
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  • 原文地址:https://www.cnblogs.com/khtt/p/15223625.html
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