mysql5.7安装

一、官网

        https://dev.mysql.com/downloads/mysql/5.7.html#downloads

 

二、安装

 

• 下载

 wget  https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar

 

 

• 解压并安装

tar -xvf mysql-5.7.27-1.el7.x86_64.rpm-bundle.tar
rpm -ivh *.rpm --force

 

• 启动

systemctl start mysqld

 

• 查看密码

grep "password" /var/log/mysqld.log

 

• 修改密码策略并修改密码

# 登录
mysql -uroot -p
 
# 修改密码策略
set global validate_password_policy=0;
set global validate_password_mixed_case_count=0;
set global validate_password_number_count=3;
set global validate_password_special_char_count=0;
set global validate_password_length=3;
SHOW VARIABLES LIKE 'validate_password%';

# 修改密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'root';