ubuntu安装 mysql并远程访问

sudo apt install mysql-server

安全设置（设置root密码，移除匿名用户，禁止root远程访问等）：

sudo mysql_secure_installation

sudo systemctl status mysql.service

mysql -u root -p

Ubuntu18.04 安装MySQL_Weison-优快云博客_ubuntu 安装mysql

tu:~# sudo mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?

Press y|Y for Yes, any other key for No: n  
Please set the password for root here.

New password: 

Re-enter new password: 
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : n

 ... skipping.

Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.

Remove test database and access to it? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done! 
root@ubuntu:~# 
root@ubuntu:~# 
 

远程访问

vim  /etc/mysql/mysql.conf.d/mysqld.cnf 
 

#bind-address           = 127.0.0.1
bind-address            = 0.0.0.0


lower_case_table_names=1   #不区分大小写

 systemctl  restart  mysql
 

 sudo mysql -uroot -p 

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

或者

> CREATE USER 'test'@'localhost' IDENTIFIED BY 'test';

CREATE USER 'test'@'%' IDENTIFIED BY 'test';

其中username和password替换为实际的用户名和密码。%表示任何IP都可以连接，也可以替换为特定的IP地址以提供更严格的访问控制。

FLUSH PRIVILEGES;

use mysql;
Database changed
mysql> select host, user from user;
+-----------+------------------+
| host      | user             |
+-----------+------------------+
| %         | root             |
| %         | test             |
| localhost | debian-sys-maint |
| localhost | mysql.session    |
| localhost | mysql.sys        |
+-----------+------------------+
5 rows in set (0.00 sec)

mysql>  flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> select host, user from user;
+-----------+------------------+
| host      | user             |
+-----------+------------------+
| %         | root             |
| %         | test             |
| localhost | debian-sys-maint |
| localhost | mysql.session    |
| localhost | mysql.sys        |
+-----------+------------------+
5 rows in set (0.00 sec)

mysql> exit
Bye
root@ubuntu:~# 
 

mysql设置不区分大小写 - 流年染指了悲伤 - 博客园