Centos7安装Mysql5.6

1、下载

wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

2、解压

tar -zxvf mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

3、移动安装目录

mv mysql-5.6.33-linux-glibc2.5-x86_64 /usr/local/mysql

4、添加用户和组

groupadd mysql

useradd -g mysql mysql

5、安装mysql

①进入mysql目录：cd /usr/local/mysql

②把目录权限分配给mysql组下的mysql用户：chown -R mysql:mysql ./

③安装mysql：./scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

安装mysql语句报错执行，出现/usr/bin/perl: bad interpreter: No such file or directory

执行：yum install -y perl perl-devel

如果还出现please install the following Perl modules before executing ./scripts/mysql_install_db:Data::Dumper

执行：yum install -y perl-Module-Install

6、编辑配置文件

①进入目录：cd /usr/local/mysql/support-files

②复制配置文件：cp my-default.cnf /etc/my.cnf

③添加系统服务、开机自启动：

先复制文件：cp mysql.server /etc/init.d/mysql

开机启动：chkconfig mysql on

④配置my.cnf：编辑文件：vi /etc/my.cnf，添加以下内容

[mysql]

default-character-set=utf8

[mysqld]

basedir=/usr/local/mysql

datadir=/usr/local/mysql/data

port=3306

socket=/tmp/mysql.sock

symbolic-links=0

character-set-server=utf8

default-storage-engine=INNODB

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

7、添加环境变量

①编辑文件：vi /etc/profile

②添加以下两行环境变量：

export PATH=/usr/local/mysql/bin:$PATH

③设置环境变量生效：source /etc/profile

④软连接：ln -fs /usr/local/mysql/bin/mysql /usr/bin

8、启动mysql

service mysql start

9、修改密码

①mysql刚安装完毕没有密码进入mysql命令行：mysql -uroot -p

②查询mysql用户：select User, Host, Password FROM mysql.user;

③修改root密码：update mysql.user set password=password('password') where User="root";

④刷新权限：flush privileges;

10、添加远程访问权限

①登录mysql：mysql -uroot -ppassword

②使用mysql：use mysql;

③为root添加远程权限，%号表示允许任何ip访问数据库：grant all privileges on *.* to root@"%" identified by "password";

④刷新权限：flush privileges;

⑤重启mysql：service mysql restart

11、关闭防火墙

systemctl stop firewalld.service

systemctl disable firewalld.service

或者：

systemctl stop firewalld

systemctl disable firewalld

以上mysql5.6安装完成。