[CentOS7] MariaDB - 1

1. MariaDB 및 MariaDB-client 그룹 설치

server# yum groupinstall mariadb mariadb-client -y

2. 시작 및 부팅 활성화

server# systemctl start mariadb

server# systemctl enable mariadb

ln -s '/usr/lib/systemd/system/mariadb.service' '/etc/systemd/system/multi-user.target.wants/mariadb.service'

3. MariaDB가 모든 인터페이스에서 수신 대기하는지 확인

server# ss -tulpn | grep mysql

tcp    LISTEN     0      50                     *:3306                  *:*      users:(("mysqld",2005,13))

4. skip-networking 지시문을 추가하여 로컬 클라이언트에 대해서만 수신 대기

server# vi /etc/my.cnf

[mysqld]

skip-networking=1

5. 재시작

server# systemctl restart mariadb

6. 모든 인터페이스에서 수신 대기하는지 확인(아무 결과도 반환하지 않는다)
server# ss -tulpn | grep mysql

7. 방화벽 설정

server# firewall-cmd --permanent --add-service=mysql

server# firewall-cmd --reload

8. MyriaDB 기본 보안 설정(로컬 호스트 외부에서 액세스할 수 있는 root계정 제거, anonymous 제거, test DB 제거등)

server# mysql_secure_installation

/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.

Set root password? [Y/n]
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.

Remove anonymous users? [Y/n]
 ... Success!

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? [Y/n]
 ... 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.

Remove test database and access to it? [Y/n]
 - 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.

Reload privilege tables now? [Y/n]
 ... 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!

# mysql -u root -predhat

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 12
Server version: 5.5.35-MariaDB MariaDB Server

Copyright (c) 2000, 2013, Oracle, Monty Program 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 |
+--------------------+
3 rows in set (0.00 sec)

MariaDB [(none)]>