各种linux相关操作

yum腾讯云镜像
base-https://mirrors.cloud.tencent.com/help/centos.html
epel-https://mirrors.cloud.tencent.com/help/epel.html
curl -s -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo
阿里云镜像
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
同步时间
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/ch-configuring_ntp_using_ntpd
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/ch-Configuring_NTP_Using_the_chrony_Suite
查看时间，修改时间
https://www.cnblogs.com/hushaoyan/archive/2018/06/08/9155045.html

windows远程登录桌面ubuntu
https://www.oneway.top/ubuntu18-04使用xrdp远程桌面（解决蓝屏问题）/1072/.html
https://c-nergy.be/blog/?p=16817
root用户桌面登录
https://www.jianshu.com/p/c39b0b052bc0