阿里云服务器-搭建连接MySQL

Posted 2021-05-16 Mr.zhou_Zxy

mysql

1.MySQL安装

## 1. 切换到本地yum仓库
[root@hadoop ~]# cd /etc/yum.repos.d/
[root@hadoop yum.repos.d]# ll
total 8
-rw-r--r-- 1 root root 614 Apr 25 10:07 CentOS-Base.repo
-rw-r--r-- 1 root root 230 Apr 25 10:07 CentOS-Epel.repo

##2. 本地安装引导
[root@hadoop software]# yum -y localinstall mysql-community-release-el6-5.noarch.rpm
## 这里是提前下载好的MySQL
## https://dev.mysql.com/downloads/mysql/

##3. 安装
[root@hadoop yum.repos.d]# yum -y install mysql-server

##4. 启动服务
[root@hadoop yum.repos.d]# service mysqld start

##5. 初始化密码
[root@hadoop yum.repos.d]# mysqladmin -uroot password '123456'

##6. 登陆
[root@hadoop yum.repos.d]# mysql -uroot -p123456

2.远程授权

##1. 登陆
[root@hadoop yum.repos.d]# mysql -uroot -p123456

##2.查询权限
mysql> mysql> select user,host from user;
+------------------+-----------+
| user             | host      |
+------------------+-----------+
| mysql.infoschema | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
| root             | localhost |
+------------------+-----------+
4 rows in set (0.01 sec)

##3.修改权限
mysql> mysqle user set host = '%' where user = 'root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select user,host from user;
+------------------+-----------+
| user             | host      |
+------------------+-----------+
| root             | %         |
| mysql.infoschema | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
+------------------+-----------+
4 rows in set (0.00 sec)

##4.远程授权
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)

##5. 登陆
[root@hadoop yum.repos.d]# systemctl stop firewalld

3.阿里云开放3306端口

4.Navicat连接