今天，在新装的mysql上限制只能通过127.0.0.1登录之后怎么也登录不上。

1.在my.cnf最后一行(或者mysqld下面)设置跳过密码验证的过程（windows是my.ini）

skip-grant-tables

2.重启mysql服务

service mysqld restart

3.直接输入mysql即可

[root@VM_0_12_centos ~]# mysqlWelcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 1313Server version: 5.6.41 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 itsaffiliates. Other names may be trademarks of their respectiveowners.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

4.修改密码:

update user set Password=PASSWORD("newword") where user=‘root‘;

5.使修改生效

flush privileges;

6.修改完之后记得去掉跳过密码验证的设置，修改/etc/my.cnf去掉设置

7.正常使用即可