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mysql安装的备忘

1. 新安装的mysql在登陆时候,提供了一个临时的密码,且在使用临时密码登录后必须修改密码才能继续使用。

  使用rpm包安装的mysql,临时密码储存在/var/log/mysqld.log

  查看临时密码:

   grep 'temporary password' /var/log/mysqld.log ;

2.使用临时密码登录:

  mysql -uroot -p'临时密码'

  修改密码:

  ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';

  PS:

    在测试的时候不想要设置很复杂的密码,MySQL的默认密码强度是2(strong)。

      

 or 

LOW    Length

      

1

 or 

MEDIUM  Length; numeric, lowercase/uppercase, and special characters; 

      

2

 or 

STRONG

  Length; numeric, lowercase/uppercase, and special characters; dictionary file      

    设置的密码强度不符合,会报错:

      ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

    使用  set global validate_password_policy=0;修改密码强度要求。

    使用 select @@validate_password_length; 查看密码长度要求

    +-----------------------------------------+

    | @@validate_password_length |

    +-----------------------------------------+

    | 8              |

    +-----------------------------------------+

3.应用更改:

  grant all privileges on *.* to root@"%" identified by "root密码";

  flush privileges;

  service iptables stop

PS:安装注意的事项:

  这次是使用的rpm包在centos6.5安装的mysql5.7版本,

  下载完整的压缩包后,解压出来的如下:  

  mysql-community-client-5.7.24-1.el6.x86_64.rpm  

  mysql-community-common-5.7.24-1.el6.x86_64.rpm

  mysql-community-devel-5.7.24-1.el6.x86_64.rpm

  mysql-community-embedded-5.7.24-1.el6.x86_64.rpm

  mysql-community-embedded-devel-5.7.24-1.el6.x86_64.rpm

  mysql-community-libs-5.7.24-1.el6.x86_64.rpm

  mysql-community-libs-compat-5.7.24-1.el6.x86_64.rpm

  mysql-community-server-5.7.24-1.el6.x86_64.rpm

  mysql-community-test-5.7.24-1.el6.x86_64.rpm

  安装顺序是要求为

  rpm -ivh mysql-community-common*

  rpm -ivh mysql-community-libs-5.7*

  rpm -ivh mysql-community-client*

  rpm -ivh mysql-community-server*

转载于:https://www.cnblogs.com/zeroisbug/p/10128099.html