一、首先得在阿里云等云主機上申請兩臺主機

二、現在連上去安裝mysql

1、通過安裝源將mysql下載下來

[root@iz2ze2llim71y07x3numlbz ~]# wget 'https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm'

--2018-03-26 16:52:00-- https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

正在解析主機 dev.mysql.com (dev.mysql.com)... 137.254.60.11

正在連接 dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... 已連接。

已發出 HTTP 請求，正在等待回應... 302 Found

位置：https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm [跟隨至新的 URL]

--2018-03-26 16:52:02-- https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm

正在解析主機 repo.mysql.com (repo.mysql.com)... 104.127.195.16

正在連接 repo.mysql.com (repo.mysql.com)|104.127.195.16|:443... 已連接。

已發出 HTTP 請求，正在等待回應... 200 OK

長度：25680 (25K) [application/x-redhat-package-manager]

正在保存至: “mysql57-community-release-el7-11.noarch.rpm”

2、將源里面的信息讀取出來

[root@iz2ze2llim71y07x3numlbz ~]# rpm -Uvh mysql57-community-release-el7-11.noarch.rpm

警告：mysql57-community-release-el7-11.noarch.rpm: 頭V3 DSA/SHA1 Signature, 密鑰 ID 5072e1f5: NOKEY

準備中... ################################# [100%]

正在升級/安裝...

1:mysql57-community-release-el7-11 ################################# [100%]

3、安裝mysql

方法一：安裝下載包

[root@iz2zeap06av7ci1sytmil8z ~]# ls

mysql57-community-release-el7-11.noarch.rpm

[root@iz2zeap06av7ci1sytmil8z ~]# yum -y install mysql57-community-release-el7-11.noarch.rpm

已加載插件：fastestmirror

正在檢查 mysql57-community-release-el7-11.noarch.rpm: mysql57-community-release-el7-11.noarch

mysql57-community-release-el7-11.noarch.rpm 將被安裝

正在解決依賴關系

方法二：直接安裝最新的服務器版本

[root@iz2ze2llim71y07x3numlbz ~]# yum -y install mysql-community-server

已加載插件：fastestmirror

base | 3.6 kB 00:00

epel | 4.7 kB 00:00

extras | 3.4 kB 00:00

mysql-connectors-community | 2.5 kB 00:00

4、安裝完畢

已安裝:

mysql-community-libs.x86_64 0:5.7.21-1.el7

mysql-community-libs-compat.x86_64 0:5.7.21-1.el7

mysql-community-server.x86_64 0:5.7.21-1.el7

作為依賴被安裝:

libaio.x86_64 0:0.3.109-13.el7

mysql-community-client.x86_64 0:5.7.21-1.el7

mysql-community-common.x86_64 0:5.7.21-1.el7

替代:

mariadb-libs.x86_64 1:5.5.56-2.el7

完畢！

5、啟動mysql

[root@iz2ze2llim71y07x3numlbz ~]# service mysqld start

Redirecting to /bin/systemctl start mysqld.service

[root@iz2ze2llim71y07x3numlbz ~]#

6、查看是否已經啟動了(如下就是已經啟動了)

[root@iz2ze2llim71y07x3numlbz ~]# systemctl status mysqld

● mysqld.service - MySQL Server

Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)

Active: active (running) since 一 2018-03-26 17:03:05 CST; 50s ago

Docs: man:mysqld(8)

http://dev.mysql.com/doc/refman/en/using-systemd.html

Process: 10570 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)

Process: 10497 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)

Main PID: 10575 (mysqld)

CGroup: /system.slice/mysqld.service

└─10575 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/my...

3月 26 17:02:57 iz2ze2llim71y07x3numlbz systemd[1]: Starting MySQL Server...

3月 26 17:03:05 iz2ze2llim71y07x3numlbz systemd[1]: Started MySQL Server.

7、查看初始密碼

[root@iz2zeap06av7ci1sytmil8z ~]# grep "password" /var/log/mysqld.log

2018-03-26T09:03:00.568391Z 1 [Note] A temporary password is generated for root@localhost: qAC(+wqJp8dA

[root@iz2ze2llim71y07x3numlbz ~]#

8、修改密碼

[root@iz2ze2llim71y07x3numlbz ~]# mysql -uroot -p

Enter password:

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

Your MySQL connection id is 2

Server version: 5.7.21

Copyright (c) 2000, 2018, 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>

9、修改密碼設置規則

mysql> set global validate_password_policy=0;

Query OK, 0 rows affected (0.00 sec)

10、設置密碼

mysql> SET PASSWORD FOR 'root'@'localhost' = 'hello123456';

Query OK, 0 rows affected (0.00 sec)

11、接下來就可以遠程連接了

總結

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