CentOS 7.x에서 MariaDB 서버 설치

CentOS 7.x에서 MariaDB 서버 설정

• CentOS 7.x에서 데이터 베이스(DB)를 설치해 보자.

yum으로 mariadb-server 를 설치한다.

[root@localhost ~]# yum -y install maridb-server
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
...

Complete!

mariaDB 서버 환경을 설정

• 환경 파일 위치

  /etc/my.cnf

• 편집기로 화일을 수정하자.

  [root@localhost ~]# vi /etc/my.cnf

[mysqld]
# [mysqld]의 섹션에 문자셋(utf-8) 설정을 추가하자.
character-set-server=utf8

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd

[mysqld_safe]
...

실행 및 서비스 등록

• 서비스 실행

  [root@localhost ~]# systemctl start mariadb

• 서비스 등록

  [root@localhost ~]# systemctl enable mariadb

MariaDB 초기 설정

[root@localhost ~]# mysql_secure_installation

/usr/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

# root 패스워드 설정
Set root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB 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.

# 익명의 사용자 제거
Remove anonymous users? [Y/n] y
 ... Success!

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

# 원격지 로그인 금지
Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB 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.

# 테스트용 데이터베이스 제거
Remove test database and access to it? [Y/n] y
 - Dropping test database...
  ... Success!
   - Removing privileges on test database...
    ... Success!

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

# 권한 정보 재설정
Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

동작확인

• 설치한 MariaDB가 정상동작하는 지 확인해 보자.

  [root@localhost ~]# mysql -u root -p

# 앞에서 설정한 root 비밀번호를 입력하자.
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 16
Server version: 5.5.41-MariaDB MariaDB Server

Copyright (c) 2000, 2014, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# 사용자 데이터 베이스를 확인해 보자.
MariaDB [(none)]> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
| root | 127.0.0.1 | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
| root | ::1       | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
+------+-----------+-------------------------------------------+
3 rows in set (0.00 sec)

# 데이터베이스 확인 
MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

MariaDB [(none)]> exit
Bye