# 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

$ sudo su# mysqlmysql>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> exitBye# 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 2Server 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 itsaffiliates. Other names may be trademarks of their respectiveowners. Type 'help;' or '/h' for help. Type '/c' to clear the current input statement. mysql> 

# 修改配置文件，注釋掉bind-address = 127.0.0.1$ sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf # 保存退出，然后進入mysql服務，執行授權命令：$ mysql -uroot -p mysql> grant all on *.* to root@'%' identified by '123456' with grant option;Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges;Query OK, 0 rows affected (0.00 sec) mysql> exitBye$ sudo /etc/init.d/mysql restart