From the command-line you can follow the below pasted command:
If it’s running the output should be like;
[root@vps ~]# /etc/init.d/mysqld status mysqld (pid 837) is running…
Okay, then we can move onto database and the user “roundcube”. The database and the user is “roundcube”. The password for the database user will be obtained from the file “/usr/local/cpanel/base/3rdparty/roundcube/config/db.inc.php” in a cPanel server.