Configuring MariaDB server

You can custom configure the MariaDB database by configuring the MariaDB server with the option files. The default MariaDB option file is called my.cnf on Unix-like operating systems.

SSH into the database server host as a root user.
Open the my.cnf file for editing in an editor such as vi or nano:
On RHEL/CentOS/SLES:
```
vi /etc/my.cnf
```
On Debian/Ubuntu:
```
vi /etc/mysql/my.cnf
```
Ensure that the bind-address property is set to 0.0.0.0 or is commented out in case of a default value.
```
bind-address=0.0.0.0
```
Ensure that the default-storage-engine property is set to innodb.
```
[mysqld]
default-storage-engine=innodb
```
Ensure that the sql_mode property is set to STRICT_ALL_TABLES to avoid columns being truncated during migration.
```
sql_mode=STRICT_ALL_TABLES
```
Save the file and exit.
Restart the database server.
Enable the database server to automatically start on system boot:
On RHEL/CentOS:
```
sudo systemctl enable mariadb
```
On SLES:
```
sudo systemctl enable mariadb
```
On Ubuntu, MariaDB starts automatically after installation. Run the following command to check the status:
```
sudo systemctl status mariadb
```
On Debian, MariaDB starts automatically after installation. Run the following command to check the status:
```
sudo systemctl status mariadb
```