MySQL

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MySQL is the M in the lamp/lemp/llmp stack. It is a popular & common database that accepts SQL statements.

Installation

root # emerge mysql

MySQL requires configuration upon instillation.

To deploy MySQL:

root # emerge --config dev-db/mysql

to start mysql:

root # rc-service mysql start

to start upon boot:

root # rc-update add mysql

MySQL is by default insecure.

to lock down your MySQL install:

root # mysql_secure_installation

By default MySQL logs every action, including leaving plain text passwords in its history file.

To remove the history file:

root # rm /root/.mysql_history

To automatically remove future history:

root # ln -s /dev/null /root/.mysql_history

If you are a zfs add the following to the mysql configuration file (/etc/mysql/my.cnf).

root # echo "innodb_use_native_aio = 0" >> /etc/mysql/my.cnf