mysql相关安装问题

 mysql安装包下载
 wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
  安装mysql
  yum -y install mysql57-community-release-el7-10.noarch.rpm
   yum -y install mysql-community-server
  启动服务
  systemctl start mysqld.service
 
   service mysqld status
   rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022
 
  yum install mysql-server
  
  grep 'password' /var/log/mysqld.log
   mysql -u root -p
  
  授权访问
update user set host = '%' where user ='root';
flush privileges;

更改密码
 set global validate_password_policy=0;
alter user 'root'@'localhost' identified by '123456';