실행 환경 : AWS EC2
sudo apt install mariadb-server mariadb-client

$ mariadb --version
mariadb Ver 15.1 Distrib 10.6.12-MariaDB, for debian-linux-gnu (x86_64) using EditLine wrapper
sudo /etc/init.d/mariadb stop
sudo /etc/init.d/mariadb start
sudo mariadb
MariaDB [(none)]> select user from mysql.user;
