my.cnf: If you have installed or upgraded to MySQL 5, chances are that you may not find the /etc/my.conf file. Don’t worry as there are several sample configuration files that come with MySQL. You can invoke locate my-large.cnf to find the sample configuration file for MySQL 5 on your server. By default, on Red Hat Enterprise, it can be located at the following location.

/usr/share/doc/MySQL-server-standard-5.0.15/my-large.cnf