安裝mysql5.7與建立用戶和遠程登陸受權

時間 2020-05-09

標籤安裝 mysql5.7 mysql 建立用戶遠程登陸受權欄目 MySQL 简体版

原文原文鏈接

環境:ubuntu18.04html

參考文章:安裝並遠程登陸受權:https://www.cnblogs.com/chancy/p/9444187.htmlmysql

　　　　用戶管理:http://www.javashuo.com/article/p-rfyiufyp-bh.htmlsql

　　　　添加docker用戶:https://www.jb51.net/article/115422.htmdocker

Ubuntu18.04安裝mysql5.7

1.1安裝

首先執行下面三條命令：數據庫

# 安裝mysql服務
sudo apt-get install mysql-server
# 安裝客戶端
sudo apt install mysql-client
# 安裝依賴
sudo apt install libmysqlclient-dev
# 檢查狀態
sudo netstat -tap | grep mysql

1.2設置root密碼

mysql5.7安裝完成後普通用戶不能進mysql，緣由：root的plugin被修改爲了auth_socket，用密碼登錄的plugin應該是mysql_native_password，直接用root權限登陸就不用密碼,修改root密碼和登陸驗證方式：ubuntu

$ sudo su
# mysql
mysql>
mysql> select user, plugin from mysql.user;
+------------------+-----------------------+
| user             | plugin                |
+------------------+-----------------------+
| root             | auth_socket           |
| mysql.session    | mysql_native_password |
| mysql.sys        | mysql_native_password |
| debian-sys-maint | mysql_native_password |
+------------------+-----------------------+
4 rows in set (0.00 sec)
mysql> update mysql.user set authentication_string=PASSWORD('123456'), plugin='mysql_native_password' where user='root';
mysql> flush privileges;
mysql> exit
Bye
# exit
$ sudo /etc/init.d/mysql restart
$ mysql -uroot -p

Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.22-0ubuntu18.04.1 (Ubuntu)

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>

1.3建立docker用戶並把數據庫docker_mysql受權給docker用戶

 
       use mysql; 
      
 
       select 
       host,  
       user 
       from 
       user 
       ; 
      
 
       -- 由於mysql版本是5.7，所以新建用戶爲以下命令： 
      
 
       create 
       user 
       docker identified  
       by 
       '123456' 
       ; 
      
 
       -- 將docker_mysql數據庫的權限受權給建立的docker用戶，密碼爲123456： 
      
 
       grant 
       all 
       on 
       docker_mysql.*  
       to 
       docker@ 
       '%' 
       identified  
       by 
       '123456' 
       with 
       grant 
       option 
       ; 
      
 
       -- 這一條命令必定要有： 
      
 
       flush  
       privileges 
       ; 
      

1.4配置mysql遠程登陸

# 修改配置文件，註釋掉bind-address = 127.0.0.1
$ sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf

# 保存退出，而後進入mysql服務，執行受權命令：
$ mysql -uroot -p

mysql> grant all on *.* to root@'%' identified by '123456' with grant option; 　　(受權能夠用root用戶遠程登陸並能夠訪問全部數據庫)
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye
$ sudo /etc/init.d/mysql restart