1、調出mysql 命令界面

輸入命令：

mysql> use mysql
Database changed
mysql> select host,user,password from user;
+-----------+------+-------------------------------------------+
| host ? ? ?| user | password ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?|
+-----------+------+-------------------------------------------+
| localhost | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| 192.168.3.3 | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
|192.168.3.7 | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+-----------+------+-------------------------------------------+
3 rows in set (0.00 sec)

2、實現遠程連接（授權法）

將host字段的值修改為%表示在任何客戶端機器上能以root用戶登錄到mysql服務器上。

update user set host='%' where ?host='192.168.3.7';

mysql> update user set host='%' where host='192.168.3.7';
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 ?Changed: 1 ?Warnings: 0


mysql> select host,user,password from user;
+-----------+------+-------------------------------------------+
| host ? ? ?| user | password ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?|
+-----------+------+-------------------------------------------+
| localhost | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| 192.168.3.3 | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| % ? ? ? ? | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+-----------+------+-------------------------------------------+
3 rows in set (0.00 sec)
3、直接在user 表中直接加入特定的用戶；

mysql> grant all privileges on *.* to ?root@'192.168.1.1' identified by "root";
Query OK, 0 rows affected (0.00 sec)

刷新后更新的數據生效
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)


mysql> select host,user,password from user;
+-------------+------+-------------------------------------------+
| host ? ? ? ?| user | password ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?|
+-------------+------+-------------------------------------------+
| localhost ? | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| 192.168.3.3 ? | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| % ? ? ? ? ? | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| 192.168.1.1 | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
+-------------+------+-------------------------------------------+
4 rows in set (0.00 sec)

總結

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