一、下载安装

# 下载rpm 文件 
[root@localhost ~]# wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
[root@localhost ~]# yum -y localinstall mysql80-community-release-el7-3.noarch.rpm
# 安装mysql
[root@localhost ~]# yum -y install mysql-community-server

二、启动

# 启动mysql
[root@localhost ~]# systemctl start mysqld
# 端口查看
[root@localhost ~]# netstat -tnal|grep 3306
tcp6       0      0 :::3306                 :::*                    LISTEN     
tcp6       0      0 :::33060                :::*                    LISTEN     
# 设置开机启动
[root@localhost ~]# systemctl enable mysqld
[root@localhost ~]# systemctl daemon-reload
# 重启命令
[root@localhost ~]# systemctl restart mysqld

三、用户设置

# mysql初次启动会生成默认密码，需要到日志文件搜索
[root@localhost ~]# grep "A temporary password is generated for root@localhost" /var/log/mysqld.log
2020-01-22T08:59:00.825035Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: 0jTSLvaCbc,A
# 登录mysql
[root@localhost ~]# mysql -uroot -p
# 修改root密码 随机密码生成地址：https://suijimimashengcheng.51240.com/
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Root233!@#';
# 创建可远程登录用户
CREATE USER 'mysql'@'%' IDENTIFIED BY 'Mysql233!@#';
# 用户授权
GRANT ALL ON *.* TO 'mysql'@'%';
# 下面修改密码策略，否则会登录失败
use mysql;
ALTER USER 'mysql'@'%' IDENTIFIED BY 'Mysql233!@#' PASSWORD EXPIRE NEVER;
ALTER USER 'mysql'@'%' IDENTIFIED WITH mysql_native_password BY 'Mysql233!@#';
FLUSH PRIVILEGES;