Install and Configure MySQL on CentOS

Jun 18 2011

MySQL CentOS

This tutorial covers installing MySQL server and client, as well as some basic configuration to get you up and running.

Install MySQL

Install MySQL service and command line tools.

$ yum install mysql mysql-server

Once thats done turn on the MySQL service so that it automatically starts on boot.

$ chkconfig --level 2345 mysqld on

Finally start the MySQL service.

$ /etc/init.d/mysqld start

Open up MySQL Ports

We are going to open up ports 3306 in iptables.

$ vi /etc/sysconfig/iptables

Add the following lines (make sure its above the reject statement).

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited

Restart iptables service for changes to take effect.

$ /etc/init.d/iptables restart

MySQL Client

That completes the steps to install mysql, from there you can login in through the client to setup whatever you need to.

$ mysql -u root

Debugging Issues

On a side note in some odd cases there may be issues with the database instantiating. You may need to create the database manually.

$ mysql_install_db --user=mysql --basedir=/usr/ --ldata=/var/lib/mysql/

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