Machine Serveur

• Hosts : slqssl.house.cpb
• Mémoire : 2Go
• vCPU : 2
• Disque : 8Go
• OS : AlmaLinux 8
• Network : 192.168.1.4

Update de la machine

[root@sqlssl ~]# dnf -y update

Installation Mysql server

[root@sqlssl ~]# yum install mariadb-server

Démarrage des services

[root@sqlssl ~]# systemctl enable mariadb
[root@sqlssl ~]# systemctl start mariadb
[root@sqlssl ~]# systemctl status mariadb

Configuration de MySQL

[root@sqlssl ~]# mysql_secure_installation

Enter current password for root (enter for none):ENTER
Set root password? [Y/n] y
Remove anonymous users? [Y/n] y
Disallow root login remotely? [Y/n] y
Remove test database and access to it? [Y/n] y
Reload privilege tables now? [Y/n] y

Test de connexion root@localhost

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

mysql> select user,host from mysql.user;

Ajout de nos hosts (no DNS)

[root@sqlssl ~]# echo "192.168.1.4 sqlssl.house.cpb sqlssl" >> /etc/hosts
[root@sqlssl ~]# echo "192.168.1.5 sql-client.house.cpb sql-client" >> /etc/hosts
[root@sqlssl ~]# echo "192.168.1.6 sql-client01.house.cpb sql-client01" >> /etc/hosts

Création d’un utilisateur distant pour notre client « sql-client.house.cpb »

[root@sqlssl ~]# mysql -u root –p

mysql> CREATE USER « chris »@ »sql-client.house.cpb » IDENTIFIED BY « votre_mot_de_passe »;
Query OK, 0 rows affected (0.01 sec)

mysql> GRANT SELECT, SHOW DATABASES ON *.* TO « chris »@ »sql-client.house.cpb » ;
Query OK, 0 rows affected (0.01 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)

mysql> select user,host from mysql.user;

Rules Firewall

[root@sqlssl ~]# firewall-cmd --zone=public --permanent --add-port=3306/tcp
[root@sqlssl ~]# firewall-cmd --reload
[root@sqlssl ~]# dnf install nmap
[root@sqlssl ~]# nmap localhost

2°) Check connexion Client « sql-client » sur MySQL

Machine Client

• Hosts : slq-client.house.cpb
• Mémoire : 2Go
• vCPU : 2
• Disque : 8Go
• OS : AlmaLinux 8
• Network : 192.168.1.5

Update de la machine

[root@sql-client ~]# dnf -y update

Ajout de nos hosts (no DNS)

[root@ sql-client ~]# echo "192.168.1.4 sqlssl.house.cpb sqlssl" >> /etc/hosts
[root@ sql-client ~]# echo "192.168.1.5 sql-client.house.cpb sql-client" >> /etc/hosts

Installation du Client Mysql

[root@ sql-client ~]# dnf install mysql
[root@sql-client ~]# mysql -u chris -p -h sqlssl
mysql> select user,host from mysql.user;

Nous avons bien une autorisation de connexion sur notre serveur de base de donnée.

3°) Check connexion Client « sql-client01 » sur MySQL

Machine Client01

• Hosts : slq-client01.house.cpb
• Mémoire : 2Go
• vCPU : 2
• Disque : 8Go
• OS : AlmaLinux 8
• Network : 192.168.1.6

Update de la machine

[root@sql-client01~]# dnf -y update

Ajout de nos hosts (no DNS)

[root@ sql-client01~]# echo "192.168.1.4 sqlssl.house.cpb sqlssl" >> /etc/hosts
[root@ sql-client01~]# echo "192.168.1.6 sql-client01.house.cpb sql-client01" >> /etc/hosts

Installation du Client Mysql

[root@ sql-client01~]# dnf install mysql

[root@ sql-client01~]# mysql -u chris -p -h sqlssl

Nous avons bien un rejet de connexion sur notre serveur de base de donnée.

Views: 23

L’article MODOP – Autoriser des connexions Distantes à MariaDB est apparu en premier sur CoffeeBreak Info.

• Serveur sql01.house.cpb  IP 192.168.1.62
• Serveur sql02.house.cpb  IP 192.168.1.63

Dans le DNS :

• sql.house.cpb. IN A 192.168.1.62
• sql.house.cpb. IN A 192.168.1.63

1° ) Installation Base de données/PhpMyadmin (ql01.house.cpb/sql02.house.cpb)

root@sql01:/home/sysbreak# apt-get install mysql-server mysql-client
root@sql01:/home/sysbreak# systemctl enable mariadb.service
root@sql01:/home/sysbreak# systemctl start mariadb.service

Configuration

root@sql01:/home/sysbreak# mysql_secure_installation

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): « ENTER »
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] yes
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] n
... skipping.

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] n
... skipping.

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!

Installer PhpMyAdmin

root@sql01:/etc# apt install phpmyadmin

« apache2 »

« oui »

« Taper un mot de passe »

« Confirmer le mot de passe »

Régler le Souci suivant :

root@sql01:/etc/apache2# mysql --user=root mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 16
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [mysql]> use mysql;
Database changed
MariaDB [mysql]> update user set plugin='' where User='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0

MariaDB [mysql]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [mysql]> exit;

2°) Modifier les Fichier Systèmes my.cnf pour les Deux Servers SQL01 et SQL02

Pour le Serveur SQL01

chris@sql01:/etc/mysql$ vi my.cnf
Ajouter les Lignes Suivantes
[mysqld]
server_id = 1
log_bin = /var/log/mysql/mysql-bin.log
log_bin_index = /var/log/mysql/mysql-bin.log.index
relay_log = /var/log/mysql/mysql-relay-bin
relay_log_index = /var/log/mysql/mysql-relay-bin.index
expire_logs_days = 10
max_binlog_size = 100M
log_slave_updates = 1
auto-increment-increment = 2
auto-increment-offset = 1

éditer le fichier 50-server.conf

chris@sql01:/etc/mysql$ vi ./mariadb.conf.d/50-server.cnf
Modifier la bind-address
bind-address = 192.168.1.62 (Adresse du Serveur SQL01)

Redémarrer le serveur de base de données.

Pour le Serveur SQL02

chris@sql02:/etc/mysql$ vi my.cnf

#Ajouter les Lignes Suivantes
[mysqld]
server_id = 2
log_bin = /var/log/mysql/mysql-bin.log
log_bin_index = /var/log/mysql/mysql-bin.log.index
relay_log = /var/log/mysql/mysql-relay-bin
relay_log_index = /var/log/mysql/mysql-relay-bin.index
expire_logs_days = 10
max_binlog_size = 100M
log_slave_updates = 1
auto-increment-increment = 2
auto-increment-offset = 2

éditer le fichier 50-server.conf

chris@sql02:/etc/mysql$ vi ./mariadb.conf.d/50-server.cnf
Modifier la bind-address
bind-address = 192.168.1.63 (Adresse du Serveur SQL02)

Redémarrer le serveur de base de données.
Vérifier que les deux server SQL01 et SQL02 écoute sur leurs adresses IP et non Localhost

3°) Création du compte ‘replication’ pour la réplication (à faire sur les deux bases)

Sur Sql01

On va créer un compte user ‘replication’ avec l’IP de SQL02 (192.168.1.63)
GRANT REPLICATION SLAVE ON *.* TO ‘replication’@’192.168.1.63’ IDENTIFIED BY ‘replication@2019’;

root@sql01:/etc# mysql -u root –p
Enter password: « PASWORD »

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 7
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> GRANT REPLICATION SLAVE ON *.* TO 'replication'@'192.168.1.63' IDENTIFIED BY 'replication@2019';
Query OK, 0 rows affected (0.00 sec)

Sur Sql02

On va créer un compte user ‘replication’ avec l’IP de SQL01 (192.168.1.62)
GRANT REPLICATION SLAVE ON *.* TO ‘replication’@’192.168.1.62’ IDENTIFIED BY ‘replication@2019’;

root@sql01:/etc# mysql -u root –p
Enter password: « PASWORD »

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 7
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> GRANT REPLICATION SLAVE ON *.* TO 'replication'@'192.168.1.62' IDENTIFIED BY 'replication@2019';
Query OK, 0 rows affected (0.00 sec)

Faire un test Croisé sur les deux bases afin de vérifier que les deux bases puissent se connecter entre elles via le compte ‘replication’

Ex : on est sur sql02 et on se connecte sur ma base SQL01 avec le compte ‘replication’*’192.168.1 .62’

4°) Réaliser la Réplication Master – Master entre les Deux bases

MASTER SQL02

Sur SQL01 Récupérer le Status MASTER

root@sql01:/etc/mysql# mysql -u root -p
Enter password: « PASWORD »
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 17
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000004 | 1045 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
MariaDB [(none)]>

Sur SQL02 intégrer le status MASTER SQL01
A passer dans la requête sur SQL02 ci-dessous

• Mot de passe réplication de SQLO1
• IP de SQL01
• Master_log_file de SQL01 (ci-dessus)
• Master_log_pos de SQL01 (ci-dessus)

root@sql02:/etc/mysql/mariadb.conf.d# mysql -u root -p
Enter password: « PASWORD »

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 36
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> STOP SLAVE;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaDB [(none)]> CHANGE MASTER TO master_host='192.168.1.62' , master_port=3306, master_user='replication' , master_password='replication@2019',master_log_file='mysql-bin.000004',master_log_pos=1045;
Query OK, 0 rows affected (0.05 sec)

MariaDB [(none)]> START SLAVE;
Query OK, 0 rows affected (0.00 sec)

MASTER SQL01
Sur SQL02 Récupérer le Status MASTER

root@sql02:/etc/mysql# mysql -u root -p
Enter password:

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 17
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000002 | 1045 | | |
+------------------+----------+--------------+------------------+

A passer dans la requête sur SQL01 ci-dessous1 row in set (0.00 sec)
MariaDB [(none)]>
Sur SQL01 intégrer le status MASTER SQL02

• Mot de passe réplication de SQL02
• IP de SQL02
• Master_log_file de SQL02 (ci-dessus)
• Master_log_pos de SQL02 (ci-dessus)

root@sql01:/etc/mysql/mariadb.conf.d# mysql -u root -p
Enter password:« PASWORD »

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 36
Server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> STOP SLAVE;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaDB [(none)]> CHANGE MASTER TO master_host='192.168.1.63' , master_port=3306, master_user='replication' , master_password='replication@2019',master_log_file='mysql-bin.000002',master_log_pos=1045;
Query OK, 0 rows affected (0.05 sec)

MariaDB [(none)]> START SLAVE;
Query OK, 0 rows affected (0.00 sec)

5°) Test de la Réplication – Création BASE et TABLE

Créer une Table sur SQL01 cela devrait créer la même table sur SQL02

Sur SQL01

MariaDB [(none)]> create database chris;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> create table chris.flowers (`id` varchar(10));
Query OK, 0 rows affected (0.02 sec)

Sur SQL02

MariaDB [(none)]> show tables in chris;
+-----------------+
| Tables_in_chris |
+-----------------+
| flowers |
+-----------------+
1 row in set (0.00 sec)

La table se retrouve à présent aussi sur SQL02.

6°) Test suppession TABLE – Création BASE et TABLE

Supprimer la table ‘chris.flowers’ sur SQL02 er vérifions la suppression sur SQL01.

Sur SQL02

MariaDB [(none)]> drop table chris.flowers;
Query OK, 0 rows affected (0.01 sec)

Sur SQL01
MariaDB [(none)]> show tables in chris;
Empty set (0.00 sec)

La table « chris » est vide donc la réplication fonctionne.

7°) Affichage dans PhpMyAdmin

Affichage PhpMyadmin SQL01

Affichage PhpMyadmin SQL02

Views: 12

L’article MODOP – Réplication MASTER – MASTER entre Deux bases Mysql est apparu en premier sur CoffeeBreak Info.