linux下mysql安装

安装mysql:
查看有没有安装过：
yum list installed mysql*
rpm -qa | grep mysql*

查看有没有安装包：
yum list mysql*

安装mysql客户端：
yum install mysql

安装mysql 服务器端：
yum install mysql-server
yum install mysql-devel

如果必须要安装MySQL，首先必须添加mysql社区repo通过输入命令：
sudo rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm，
最后使用像安装MySQL的常规方法一样安装mysql： yum install mysql mysql-server mysql-libs mysql-server

允许远程连接配置:

use mysql
mysql> select host, user from user;
将相应用户数据表中的host字段改成'%'；
    update user set host='%' where user='root';
    ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY' 不予理会
    flush privileges;

为用户创建指定数据库与权限:

create user 'test'@'localhost' identified by '123456';  
create user 'test'@'%' identified by '123456';  
flush privileges; 
create database mwx DEFAULT CHARSET utf8 COLLATE utf8_general_ci;  
grant all privileges on `testdb`.* to 'test'@'%' identified by '123456';  
grant all privileges on `testdb`.* to 'test'@'localhost' identified by '123456';  
flush privileges;

启动:service mysqld start
停止:service mysqld stop
重启:service mysqld restart
修改密码:use mysql;
UPDATE user SET password=PASSWORD(‘123456’) WHERE user=‘root’;
查看端口 netstat -apn | grep mysql
netstat -antp|grep mysqld| grep LISTEN