Centos7下安装MySQL

1.下载

去官网下载Yum源：地址

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2.安装

rpm -ivh mysql57-community-release-el7-11.noarch.rpmyum install mysql-community-serverservice mysqld start

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3.连接设置

初始安装没有密码

mysql -u root

如果报以下错误

运行如下命令查看密码

cat /var/log/mysqld.log |grep password

再次登录并输入密码即可

设置密码

set password for 'root'@'localhost' = password('password');

如果报以下错误

退出mysql连接运行如下命令

mysql_upgrade -uroot -p

再次更新密码提示成功

如果报以下错误

修改密码强度插件

mysql> set global validate_password_policy=0;

mysql> set global validate_password_mixed_case_count=0;

mysql> set global validate_password_number_count=3;

mysql> set global validate_password_special_char_count=0;

mysql> set global validate_password_length=3;

mysql> set password for 'root'@'localhost' =password('password');

设置远程连接

 GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;