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Sunday 24 September 2017
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Instalando MariaDB no Fedora20

MariaDB

 

Tutorial simples de como instalar o MariaDB no Fedora20.

Se voce esta migrando de MySQL para MariaDB, faça backup dos seus dados.

O MariaDB ja vem por padrão no Fedora20, então, vamos aos comandos:

 

Abra um terminal, faça login como root e digite os comandos abaixo:

 

yum install -y mariadb mariadb-server

Após a instalação proceder, execute os comandos a baixo:

Este comando inicia o serviço do MariaDb

systemctl start mariadb.service

Este comando habilita o serviço  a iniciar automaticamente no boot:

systemctl enable mariadb.service

Após isto, vamos rodar a MariaDB Secure Instalation:

 /usr/bin/mysql_secure_instalation

o output sera o descrito abaixo:

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] 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.
 
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.
 
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.
 
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.
 
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!

Vamos agora, criar uma base de dados, um usuario e habilitar conexoes remotas ao MariaDB.

Para este exemplo, vamos usar os seguintes parametros:

DB_NAME = webdb
USER_NAME = webdb_user
REMOTE_IP = 10.0.15.25
PASSWORD = password123
PERMISSIONS = ALL

Vamos primeiro conectar ao MariaDB:

 mysql -u root -p
## CREATE DATABASE ##
MariaDB [(NONE)]> CREATE DATABASE webdb;
 
## CREATE USER ##
MariaDB [(NONE)]> CREATE USER 'webdb_user'@'10.0.15.25' IDENTIFIED BY 'password123';
 
## GRANT PERMISSIONS ##
MariaDB [(NONE)]> GRANT ALL ON webdb.* TO 'webdb_user'@'10.0.15.25';
 
##  FLUSH PRIVILEGES, Tell the server TO reload the GRANT TABLES  ##
MariaDB [(NONE)]> FLUSH PRIVILEGES;

Desconetando do MariaDB:

 MariaDB [(none)]> quit
Bye

Habilitando conexoes remoatas ao MariaDb Server.

1. Adicione nova regra ao Firewalld

 firewall-cmd --permanent --zone=public --add-service=mysql

## ou ##

firewall-cmd --permanent --zone=public --add --port=3306/tcp

1.1.Reinicie o iptables

 systemctl restart iptables.service

Prontinho, já pode conectar com PHPMyAdmin ou DBeaver.
Abraços e ate o próximo Tutorial

Tutorial baseado em INTTF