#rpm -qa | grep mysql

#yum -y remove mysql-libs-5.1.66-2.el6_3.x86_64

#yum -y install make gcc-c++ cmake bison-devel ncurses-devellibaio libaio-devel

#groupadd mysql

#useradd mysql -g mysql

#tar xzvfmysql-5.7.19-linux-glibc2.12-x86_64.tar.gz

#mv mysql-5.7.19-linux-glibc2.12-x86_64 /usr/local/mysql

#mkdir /usr/local/mysql/data

#cd /usr/local

#chown -R mysql:mysql mysql/

#chmod -R 755 mysql/

#/usr/local/mysql/support-files/mysql.server start

#ln -s /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
#service mysql restart

#ln -s /usr/local/mysql/bin/mysql /usr/bin

#mysql -u root -p

msql>alter user 'root'@'localhost' identified by '123456';
mysql>use mysql;
msyql>update user set user.Host='%' where user.User='root';
mysql>flush privileges;
mysql>quit

#vi /usr/local/mysql/my.cnf

[mysqld]
port = 3306
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

#iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
#iptables -L -n
#service iptables save