linux解决时间同步的问题及更新headers

690 apt-get install linux-headers-$( uname -r )
691 shutdown -h now

671 vi /etc/default/rcs
672 timedatectl set-local-rtc 1
673 hwclock --localtime --systohc
674 timedatectl set-local-rtc 1 --adjust-system-clock

679 ntpdate time.windows.com
680 timedatectl set-local-rtc 1 --adjust-system-clock

apt install ntpdate
663 ntpdate time.windows.com
664 timedatectl set-local-rtc 1
665 timedatectl set-timezone
666 timedatectl set-timezone Asia/Shanghai
667 hwclock --localtime --systohc
668 ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime