Linux服务器MySQL安装

1. MySQL官网下载如图：

2. 安装MySQL

[root@iZ2zebb0428roermd00462Z /]# rpm -ivh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch

#过滤MySQL：

[root@iZ2zebb0428roermd00462Z /]#yum repolist all |grep mysql

#enabled是已经开启的，现在安装mysql57-community，把disabled设置为enabled

# 看看都装了什么：

[root@iZ2zebb0428roermd00462Z /]#rpm -ql mysql80-community-release

#安装查看manager:

[root@iZ2zebb0428roermd00462Z /]#yum provides yum-config-manager

# mysql80-community禁止：

[root@iZ2zebb0428roermd00462Z /]# yum-config-manager --disable mysql80-community

#mysql57-community开启：

[root@iZ2zebb0428roermd00462Z /]# yum-config-manager --enable mysql57-community

#查看结果：

[root@iZ2zebb0428roermd00462Z /]# yum repolist all |grep community/x86_64

# 安装MySQL：

[root@iZ2zebb0428roermd00462Z /]# yum install mysql-community-server -y

2. 启动：

[root@iZ2zebb0428roermd00462Z /]# systemctl start mysqld

3.要马上修改密码，首先查找默认的密码：

[root@iZ2zebb0428roermd00462Z /]# grep "password" /var/log/mysqld.log

4. 进入mysql：

[root@iZ2zebb0428roermd00462Z /]# mysql -uroot -p"lpdIi.82Dxky"

5. 修改密码：

[root@iZ2zebb0428roermd00462Z /]# alter user root@'localhost' identified by '新密码';

# 密码不要太简单，不然会出现下面错误：

6. 授权：

[root@iZ2zebb0428roermd00462Z /]# grant all privileges on *.* to 'root'@'%' identified by 'Bgx123.com';

[root@iZ2zebb0428roermd00462Z /]# flush privileges;

7. 启动mysql

[root@iZ2zebb0428roermd00462Z /]# systemctl start mysqld

[root@iZ2zebb0428roermd00462Z /]# service mysqld restart

8. navicat 连接mysql：

#一定要关闭防火墙：

[root@iZ2zebb0428roermd00462Z /]# systemctl stop firewalld.service

#还要注意阿里云服务器对mysql端口开放