安装mysql 8.0.17并配置远程访问的方法

一、安装前准备

查看数据库版本命令： mysql --version

mysql-community-common-8.0.17-1.el7.x86_64.rpm
mysql-community-libs-8.0.17-1.el7.x86_64.rpm
mysql-community-client-8.0.17-1.el7.x86_64.rpm
mysql-community-server-8.0.17-1.el7.x86_64.rpm

二、安装rpm包

依次安装上述rpm包，前后安装包为依赖关系。

# rpm -ivh mysql-community-common-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-libs-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-client-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-server-8.0.17-1.el7.x86_64.rpm

三、 查询root账户初始密码

mysql 8.0版本的初始密码默认非空，安装时自动生成，存储在/var/log/mysqld.logzhon中。

# rpm -ivh mysql-community-common-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-libs-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-client-8.0.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-server-8.0.17-1.el7.x86_64.rpm

四、修改root密码

修改密码默认有安全性要求，对密码复杂度有控制。

mysql> alter user 'root'@'localhost' identified by 'redhat';
error 1819 (hy000): your password does not satisfy the current policy requirements
mysql> alter user 'root'@'localhost' identified by '1qaz!qaz';
query ok, 0 rows affected (0.15 sec)
mysql> flush privileges;
query ok, 0 rows affected (0.01 sec)

五、查看当前用户配置信息

mysql> show databases;
mysql> use mysql;
mysql> select user,host,plugin from user;

六、新建一用户用于远程访问

mysql> create user 'wangwang'@'%' identified by '1qaz!qaz';
query ok, 0 rows affected (0.08 sec)
mysql> grant all on *.* to 'wangwang'@'%';
query ok, 0 rows affected (0.12 sec)
mysql> select user,host,plugin from user;

该账户的plugin加密方式为caching_sha2_password， mysql 8.0前的客户端在连接 mysql 8.0服务器时会出现 authentication plugin 'caching_sha2_password' cannot be loaded 的错误（需要更该为mysql_native_password）。

七、修改加密方式

修改加密规则

mysql> alter user 'wangwang'@'%' identified by '1qaz!qaz' password expire never; 
query ok, 0 rows affected (0.17 sec)

更新用户密码

mysql> alter user 'wangwang'@'%' identified with mysql_native_password by '1qaz!qaz';
query ok, 0 rows affected (0.04 sec)

保存更改

mysql> flush privileges;
query ok, 0 rows affected (0.05 sec)

查询信息

mysql> select user,host,plugin from user;

八、测试连接

可以使用navicat进行测试。

总结

以上所述是小编给大家介绍的安装mysql 8.0.17并配置远程访问的方法,希望对大家有所帮助