官网下载安装mysql-server

# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

# rpm -ivh mysql-community-release-el7-5.noarch.rpm

# yum install mysql-community-server

安装成功后重启mysql服务。

# service mysqld restart

初次安装mysql，root账户没有密码。

[root@yl-web yl]# mysql -u root

Welcome to the MySQL monitor. Commands end with ; or g.

Your MySQL connection id is 3

Server version: 5.6.26 MySQL Community Server (GPL)

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| test |

+--------------------+

4 rows in set (0.01 sec)

mysql>

设置密码

mysql> set password for 'root'@'localhost' =password('password');

Query OK, 0 rows affected (0.00 sec)

mysql>

不需要重启数据库即可生效。

在mysql安装过程中如下内容：

Installed:

mysql-community-client.x86_64 0:5.6.26-2.el7                mysql-community-devel.x86_64 0:5.6.26-2.el7

mysql-community-libs.x86_64 0:5.6.26-2.el7                  mysql-community-server.x86_64 0:5.6.26-2.el7

Dependency Installed:

mysql-community-common.x86_64 0:5.6.26-2.el7

Replaced:

mariadb.x86_64 1:5.5.41-2.el7_0          mariadb-devel.x86_64 1:5.5.41-2.el7_0   mariadb-libs.x86_64 1:5.5.41-2.el7_0

mariadb-server.x86_64 1:5.5.41-2.el7_0

三、配置mysql

1、编码

mysql配置文件为/etc/my.cnf

最后加上编码配置

[mysql]

default-character-set =utf8

这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。

2、远程连接设置

把在所有数据库的所有表的所有权限赋值给位于所有IP地址的root用户。

mysql> grant all privileges on *.* to root@'%'identified by 'password';

如果是新用户而不是root，则要先新建用户

mysql>create user 'username'@'%' identified by 'password';

此时就可以进行远程连接了。

防火墙配置

防火墙设置一下，不然3306端口还是无法访问。

1 iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT

设置完之后，查看一下是否能通过。

1 iptables -L -n

如果想要限制访问。

iptables -D INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT

OK，这样就可以远程访问了。

来源：https://www.cnblogs.com/starof/p/4680083.html