MySql Error 1698(28000)问题的解决方法

一，问题描述：

mysqlerror1698(28000)解决，新装了mysql-server-5.7,登录为这一问题，普通用户不能进mysql,只有root用户才能进，并且不需要任何密码。

~$ mysql -u root -p
enter password: 
error 1698 (28000): access denied for user 'root'@'localhost'

二，解决步骤：

停止mysql服务

~$ sudo service mysql stop

以安全模式启动mysql

~$ sudo mysqld_safe --skip-grant-tables &

mysql启动之后就可以不用密码登陆了

~$ mysql -u root
welcome to the mysql monitor. commands end with ; or \g.
your mysql connection id is 2
server version: 5.7.10 mysql community server (gpl) 

查看一下user表，错误的起因就是在这里， root的plugin被修改成了auth_socket，用密码登陆的plugin应该是mysql_native_password。

mysql> select user, plugin from mysql.user;
+-----------+-----------------------+
| user   | plugin        |
+-----------+-----------------------+
| root   | auth_socket      |
| mysql.sys | mysql_native_password |
| dev    | mysql_native_password |
+-----------+-----------------------+
<strong>3</strong> rows in set (<strong>0.01</strong> sec)

关于auth_socket，在官方有说明： ，反正现在暂时不用它， 那就把这里改了。

mysql> update mysql.user set authentication_string=password('newpwd'), plugin='mysql_native_password' where user='root';
query ok, <strong>1</strong> row affected, <strong>1</strong> warning (<strong>0.00</strong> sec)
rows matched: <strong>1</strong> changed: <strong>1</strong> warnings: <strong>1</strong>
mysql> flush privileges;
query ok, <strong>0</strong> rows affected (<strong>0.00</strong> sec)

重启服务，问题就解决了

~$ sudo service mysql stop
...
 * mysql community server 5.7.10 is stopped
~$ sudo service mysql start
..
 * mysql community server 5.7.10 is started
~$ mysql -u root -p
enter password: 
welcome to the mysql monitor. commands end with ; or \g.
your mysql connection id is 2
server version: 5.7.10 mysql community server (gpl)

以上所述是小编给大家介绍的mysql error 1698(28000)问题的解决方法，希望对大家有所帮助