一、官网下载安装MysqL-server

在命令行下输入：

# 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

2、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。