1、登陆mysql数据库
mysql -u root -p
查看user表
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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)
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可以看到在user表中已创建的root用户。host字段表示登录的主机，其值可以用IP，也可用主机名，
(1)有时想用本地IP登录，那么可以将以上的Host值改为自己的Ip即可。
2、实现远程连接(授权法)
将host字段的值改为%就表示在任何客户端机器上能以root用户登录到mysql服务器，建议在开发时设为%。
update user set host = '%' where user = 'root';
将权限改为ALL PRIVILEGES
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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)
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这样机器就可以以用户名root密码root远程访问该机器上的MySql.
3、实现远程连接（改表法）
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use mysql;
update user set host = '%' where user = 'root';
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这样在远端就可以通过root用户访问MySQL，如果大家有任何补充可以联系服务器之家小编。
原文链接：https://www.cnblogs.com/duanlinxiao/p/10722151.html