CloudVM 之 MariaDB install

前言

本小节我们学习一下在CoentOS下安装MariaDB。

案例

[[email protected] ~]# yum -y install mariadb mariadb-server
[[email protected] ~]# systemctl start mariadb
[[email protected] ~]# systemctl enable mariadb
  
接下来进行MariaDB的相关简单配置，设置密码，会提示先输入密码
[[email protected] ~]# mysql_secure_installation
首先是设置密码，会提示先输入密码
  
Enter current password for root (enter for none):<–初次运行直接回车
  
设置密码
  
Set root password? [Y/n] <– 是否设置root用户密码，输入y并回车或直接回车
New password: <– 设置root用户的密码
Re-enter new password: <– 再输入一次你设置的密码
  
其他配置
Remove anonymous users? [Y/n] <– 是否删除匿名用户，回车
Disallow root login remotely? [Y/n] <–是否禁止root远程登录,回车,
Remove test database and access to it? [Y/n] <– 是否删除test数据库，回车
Reload privilege tables now? [Y/n] <– 是否重新加载权限表，回车
 
[[email protected] ~]# mysql -p123456
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 3
Server version: 5.5.56-MariaDB MariaDB Server
 
Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
4 rows in set (0.01 sec)
 
MariaDB [(none)]>
 
 
接下来配置MariaDB的字符集:
-> 首先是配置文件/etc/my.cnf，在[mysqld]标签下添加
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
  
-> 接着配置文件/etc/my.cnf.d/client.cnf，在[client]中添加
default-character-set=utf8
  
-> 然后配置文件/etc/my.cnf.d/mysql-clients.cnf，在[mysql]中添加
default-character-set=utf8
  
最后是重启MariaDB，并登陆MariaDB查看字符集
[[email protected] my.cnf.d]# systemctl restart mariadb
 
[[email protected] ~]# mysql -p123456
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 4
Server version: 5.5.56-MariaDB MariaDB Server
 
Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
MariaDB [(none)]> show variables like "%character%";show variables like "%collation%";
+--------------------------+----------------------------+
| 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)
 
MariaDB [(none)]>