Linux installation mariadb (MYSQL) and simple configuration

1, installation mariadb

Installation commands

Install MARIADB Mariadb-server

Installation Complete mariadb, first start mariadb

Systemctl Start mariadb

Set boot up

Systemctl Enable MARIADB

The following is a simple configuration of mariadb

Mysql_secure_installation

The first is to set the password, you will be prompted to enter the password

Enter current password to root (enter for none): <– First run direct carriage return

Set Password

Set root Password? [y/n] <– whether to set the root user password, enter Y and return or direct enter
New Password: <– Set the root user's password
Re-enter new password: <– Enter the password you set again

Other configurations

Remove anonymous users? [y/n] <– Whether to delete anonymous users, enter

Disallow Root login remotely? [y/n] <– Whether root login is forbidden, enter,

Remove test database and access to it? [y/n] <– Whether to delete the test database, enter

Reload privilege tables now? [y/n] <– whether to reload the permissions table, enter

Initialize MARIADB complete, next Test login

Mysql-uroot-ppassword

Complete.

2. Configuring the MARIADB Character Set

File/etc/my.cnf

Vi/etc/my.cnf

Add under the [Mysqld] tab

  
        init_connect= ' SET collation_connection = Utf8_unicode_ci '
        init_connect= ' SET NAMES UTF8 '  
        Character-set-server=utf8  
        Collation-server=utf8_unicode_ci  
        

File/etc/my.cnf.d/client.cnf

Vi/etc/my.cnf.d/client.cnf

Add in [client]

Default-character-set=utf8

File/etc/my.cnf.d/mysql-clients.cnf

Vi/etc/my.cnf.d/mysql-clients.cnf

Add in [MySQL]

Default-character-set=utf8

Complete configuration, restart MARIADB

Systemctl Restart MARIADB

Then enter MARIADB to view the character set

Like "%character like"%collation% ";    

Displayed as

+--------------------------+----------------------------+
| variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | UTF8 |
| character_set_connection | UTF8 |
| Character_set_database | UTF8 |
| Character_set_filesystem | binary |
| Character_set_results | UTF8 |
| Character_set_server | UTF8 |
| Character_set_system | UTF8 |
| Character_sets_dir | /usr/share/mysql/charsets/|
+--------------------------+----------------------------+
8 rows in Set (0.00 sec)

+----------------------+-----------------+
| variable_name | Value |
+----------------------+-----------------+
| collation_connection | Utf8_unicode_ci |
| Collation_database | Utf8_unicode_ci |
| Collation_server | Utf8_unicode_ci |
+----------------------+-----------------+
3 Rows in Set (0.00 sec)

The character set configuration is complete.

3. Add users, set permissions

Create user command

MySQL>user username'password';

Direct creation of user and authorized commands

MySQL>*.  To username'password';     

Grant access to the extranet

MySQL>*.  to [email protected]'%'password';       

Grant permissions and can authorize

MySQL>*.  to [email protected]' hostname'passwordoption;      

4. Refresh Permissions

Flush privileges;

Simple user and permission configuration is basically the case.

Where only partial permissions are granted to change all privileges or all to Select,insert,update,delete,create,drop,index,alter,grant,references,reload, Shutdown,process,file part of it.

5. Other instructions)

* (1).上面配置字符的过程也适用于windows情况，只不过在window中修改配置文件为"my.ini";   * (2).上面配置字符的过程，如果没有找到需要的client中的配置文件，可以在server的配置文件中添加相应的标签和内容也可以。                                                                                                                                                                                                                                                                                   

6. Completely uninstall and install MySQL under Ubuntu System (other configurations are the same as above)

• (1). Delete MySQL
  sudo apt-get autoremove--purge mysql-server-5.0
  sudo apt-get remove Mysql-server
  sudo apt-get autoremove mysql-server
  sudo apt-get remove Mysql-common//This is important
  In fact, some of the above is superfluous.
• (2). Clean up residual data
  Dpkg-l |grep ^rc|awk ' {print $} ' |sudo Xargs dpkg-p

• (3). Install MySQL
  sudo apt-get install Mysql-server
  sudo apt-get install mysql-client
  sudo apt-get install Php5-mysql
  Installing Php5-mysql is to connect PHP with MySQL.
  Once the installation is complete, the MySQL server should start automatically. You can check whether the MySQL server is running by running the following command at the terminal prompt:
  sudo netstat-tap | grep MySQL

  When you run the command, you can see a line similar to the following:

    tcp 0 0 localhost.localdomain:mysql *:* LISTEN -

  If the server does not function correctly, you can start it by using the following command:
  Sudo/etc/init.d/mysql restart
  Go to MySQL
  $mysql-uroot-p Administrator Password
  Configure the Administrator password for MySQL:
  sudo mysqladmin-u root password newpassword

Linux installation mariadb (MYSQL) and simple configuration