一、检查系统是否安装其他版本的MYSQL数据

yum list installed | grep mysql

yum -y remove mysql-libs.x86_64

二、安装及配置

wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm

rpm -ivh mysql-community-release-el6-5.noarch.rpm

查看可以安装的版本

yum repolist all | grep mysql

1、安装MYSQL数据库

yum install mysql-community-server

2、设置为开机启动

chkconfig —list | grep mysqld
chkconfig mysqld on

service mysqld start

3、设置密码

/usr/bin/mysqladmin -u root password 123456

4、修改root密码

mysql -u root -p 123456

select user,host,password from mysql.user;
set password for root@localhost=password (xxx);
set password for root@127.0.0.1=password (xxx);

删除匿名用户

delete from mysql.user where user=””;