centos7 mysql5.7安装

环境：centos7.4

mysql:5.7

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安装方式yum安装：

wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm

rpm -ivh mysql57-community-release-el7-9.noarch.rpm

yum install mysql-server
systemctl start mysqld

grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p

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修改配置文件：

character_set_server=utf8
init_connect='SET NAMES utf8'
validate_password = off

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修改密码：

mysql> set global validate_password_policy=LOW;

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewP';

或者

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

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赋权：

添加远程登录用户

默认只允许root帐户在本地登录，如果要在其它机器上连接mysql，必须修改root允许远程连接，或者添加一个允许远程连接的帐户，为了安全起见，我添加一个新的帐户：

mysql> GRANT ALL PRIVILEGES ON *.* TO 'zhouyuqiang'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

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参考文档：

https://www.linuxidc.com/Linux/2016-09/135288.htm