自由屋推书网—热门的小说推荐平台!

你的位置: 首页 > mysql

Mysql命令行连接远程/本地数据库详解

2023-05-05 14:43:35

Mysql 命令行 连接远程/本地数据库

Mysql 命令行 连接本地数据库

  • MySQL登录
    1. mysql -uroot -p密码
    2. mysql -hip -uroot -p连接目标的密码
    3. mysql --host=ip --user=root --password=连接目标的密码
C:\Users\Administrator>mysql -h 127.0.0.1 -uroot --port=3306 -p                                                                                                      
Enter password: *****
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.6.17 MySQL Community Server (GPL)      

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> exit
Bye

C:\Users\Administrator>mysql -h 127.0.0.1 -uroot --port=3308 -p                                                                                                      
Enter password: *****
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.5.61 MySQL Community Server (GPL)

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> exit 
Bye

C:\Users\Administrator>mysql -h 127.0.0.1 -uroot --port=3307 -p                                                                                                      
Enter password: *****
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 8.0.13 MySQL Community Server - GPL

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> exit
Bye

Mysql 命令行 连接远程数据库

  • 连接 远程的数据库
  • mysql --host=ip --user=root --password=连接目标的密码
┌──(root㉿kali)-[~]
└─# mysql -h 69.45.123.1 -uroot --port=3307 -p
Enter password: 
ERROR 1130 (HY000): Host '69.45.123.128' is not allowed to connect to this MySQL server
  • 有两个方法
  • 如果 你的 mysql 数据库没有 密码 最好创建一个一密码
update mysql.user set authentication_string=password('新密码') where user='用户名' and Host ='localhost';
update mysql.user set authentication_string=password('admin') where user='用户名' and Host ='localhost';

1.改表法

  • 是因为 root 帐号不允许从远程登陆,只能在localhost。这个时候只要在localhost的那台电脑,登入mysql后,更改 “mysql” 数据库里的 “user” 表里的 “host” 项,从"localhost"改为"%"
C:\Users\Administrator>mysql -uroot -p -P3306
Enter password: *****
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.17 MySQL Community Server (GPL)

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> use mysql; # 使用数据库
Database changed

mysql> select user,password,host from user where user='root'; # 先查询下 有权限的 用户 的 host 是什么
+------+-------------------------------------------+-----------+
| user | password                                  | host      |
+------+-------------------------------------------+-----------+
| root | *4ACFE3202A5FF5CF467898FC58AAB1D615029441 | localhost |
| root | *4ACFE3202A5FF5CF467898FC58AAB1D615029441 | 127.0.0.1 |
| root | *4ACFE3202A5FF5CF467898FC58AAB1D615029441 | ::1       |
+------+-------------------------------------------+-----------+
3 rows in set (0.00 sec)

# 修改 "mysql" 数据库里的 "user" 表里的 "host" 项,从"localhost"改为"%"

mysql> update user set host = '%' where user = 'root' and host='localhost'; 
Query OK, 0 rows affected (0.00 sec)
Rows matched: 0  Changed: 0  Warnings: 0

mysql> flush privileges; # 刷新一下 mysql的缓存
Query OK, 0 rows affected (0.00 sec)
  • 执行操作之后 重启服务器
  • 如果有需要 改回来 在使用 数据库之后 把 “mysql” 数据库里的 “user” 表里的 “host” 项 从"%“改为"localhost” 之后刷新一下缓存之后 重启 mysql 服务 即可
mysql> use mysql; # 使用数据库
Database changed

mysql> update user set host = 'localhost' where user = 'root' and host='%'; 
Query OK, 0 rows affected (0.00 sec)
Rows matched: 0  Changed: 0  Warnings: 0

mysql> flush privileges; # 刷新一下 mysql的缓存
Query OK, 0 rows affected (0.00 sec)

2. 授权法。例如,你想 某个用户名 比如 myuser 和对应的密码 从任何主机连接到mysql服务器的话。

/*myuser mypassword 为对应的 用户迷宫和密码 */
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;

如果你想允许用户myuser从ip为192.168.1.3的主机连接到mysql服务器,并使用mypassword作为密码

/*例如 */
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.3' IDENTIFIED BY '1235' WITH GRANT OPTION;
mysql> flush privileges; # 刷新一下 mysql的缓存
Query OK, 0 rows affected (0.00 sec)
  • 取消授权
# 查看授权的所有用户
mysql> SELECT DISTINCT CONCAT('User: ''',user,'''@''',host,''';') AS query FROM mysql.user;  
+---------------------------+
| query                     |
+---------------------------+
| User: 'root'@'127.0.0.1'; |
| User: 'root'@'::1';       |
| User: ''@'localhost';     |
| User: 'root'@'localhost'; |
+---------------------------+
4 rows in set (0.00 sec)

# revoke all on *.* from 'username'@'%';  username为指定的用户,%为任意登录的地址。
mysql> revoke all on *.* from 'root'@'192.168.1.3';     
Query OK, 0 rows affected (0.00 sec)

# 然后再次 
mysql> flush privileges; # 刷新一下 mysql的缓存
Query OK, 0 rows affected (0.00 sec)
  • 然后 重启 mysql 服务

编辑推荐

热门小说