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How To Install MariaDB and phpMyAdmin on Debian 9



The MariaDB database server is published as free and open source software under the General Public License version 2. It uses a relational database and SQL (Structured Query Language) to manage its data. MariaDB was forked from MySQL in 2009 due to licensing concerns. It can run on anything, anywhere – servers, virtual machines or containers, in a private data center or in the cloud (public, private or hybrid) – and is the default database on leading Linux distributions, including Red Hat Enterprise Linux/CentOS and SUSE Linux Enterprise.

Installing MariaDB

apt -y install mariadb-server


nano /etc/mysql/mariadb.conf.d/50-server.cnf
# line 111,112: change like this
character-set-server  = utf8
#collation-server      = utf8mb4_general_ci


systemctl restart mariadb

Initial Settings for MariaDB:

Since we are doing fresh installation, we'll need to run the included security script. This changes some of the less secure default options for things like remote root logins and sample users.

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):
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
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
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
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
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!


connect to MariaDB with root

root@pyw:~# mysql -u root -p
Enter password:     # password you set

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 10
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.
# show user list
MariaDB [(none)]> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *02361D675FBE489B7E5C74B4BE20F00DDA443EAD |
+------+-----------+-------------------------------------------+
1 row in set (0.00 sec)
# show database list
MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

MariaDB [(none)]> exit
Bye


Install phpMyAdmin


For the soul purpose of operating MariaDB on web browser from Clients.

Prerequisites

 
Make sure you have Apache httpd and PHP installed. Once the dependency are taken care you can proceed like so..

apt install phpmyadmin

# This example uses apache2
 


 # answer [No] to proceed 

change some settings to enable login to phpMyAdmin with root

root@pyw:~# mysql -u root -p mysql
Enter password:
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 11
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]> update user set plugin='' where user='root';
Query OK, 1 row affected (0.14 sec)
Rows matched: 1  Changed: 1  Warnings: 0

MariaDB [mysql]> flush privileges;
Query OK, 0 rows affected (0.07 sec)

MariaDB [mysql]> exit
Bye

nano /etc/phpmyadmin/apache.conf
# line 8: add IP you allow to access
Require ip 127.0.0.1 192.168.0.0/24

systemctl restart apache2

Access to [http://(your hostname or IP address)/phpmyadmin/] and login with a user in MariaDB.

 

Just logined

 
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