1、登陸mysql數據庫

mysql -u root -p

查看user表

mysql> use mysql;
Database changed
mysql> select host,user,password from user;
+--------------+------+-------------------------------------------+
| host | user | password |
+--------------+------+-------------------------------------------+
| localhost | root | *A731AEBFB621E354CD41BAF207D884A609E81F5E |
| 192.168.1.1 | root | *A731AEBFB621E354CD41BAF207D884A609E81F5E |
+--------------+------+-------------------------------------------+
2 rows in set (0.00 sec)

可以看到在user表中已創建的root用戶。host字段表示登錄的主機，其值可以用IP，也可用主機名，

(1)有時想用本地IP登錄，那麽可以將以上的Host值改為自己的Ip即可。

2、實現遠程連接(授權法)

將host字段的值改為%就表示在任何客戶端機器上能以root用戶登錄到mysql服務器，建議在開發時設為%。
update user set host = ’%’ where user = ’root’;

將權限改為ALL PRIVILEGES

mysql> use mysql;
Database changed
mysql> grant all privileges on *.* to root@‘%‘ identified by "password";
Query OK, 0 rows affected (0.00 sec)

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

mysql> select host,user,password from user;
+--------------+------+-------------------------------------------+
| host | user | password |
+--------------+------+-------------------------------------------+
| localhost | root | *A731AEBFB621E354CD41BAF207D884A609E81F5E |
| 192.168.1.1 | root | *A731AEBFB621E354CD41BAF207D884A609E81F5E |
| % | root | *A731AEBFB621E354CD41BAF207D884A609E81F5E |
+--------------+------+-------------------------------------------+
3 rows in set (0.00 sec)

這樣機器就可以以用戶名root密碼root遠程訪問該機器上的MySql.

3、實現遠程連接（改表法）

use mysql;

update user set host = ‘%‘ where user = ‘root‘;

這樣在遠端就可以通過root用戶訪問Mysql.

開啟MySQL遠程訪問權限 允許遠程連接