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登录日志 cd /var/log less secure less messages

tar zxvf 解压

rpm -qa | grep mariadb 检查是否有安装mysql yum remove mysql-community-common-5.7.24-1.el7.x86_64 移除mysql wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm 下载mysql 安装包 yum -y lo...

yum search openjdk yum install -y java-11-openjdk.x86_64 yum install -y docker