解决远程无法登陆mysql服务器的问题和重置密码

重置密码和数据库（适合源码安装，rpm的可能不行）

[root@mail postfixadmin]# /usr/bin/mysql_install_db --force

Installing all prepared tables

Fill help tables

To start mysqld at boot time you have to copy support-files/mysql.server

to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !

To do so, start the server, then issue the following commands:

/usr/bin/mysqladmin -u root password 'new-password'

/usr/bin/mysqladmin -u root -h mail.test.com password 'new-password'

See the manual for more instructions.

NOTE:  If you are upgrading from a MySQL <= 3.22.10 you should run

the /usr/bin/mysql_fix_privilege_tables. Otherwise you will not be

able to use the new GRANT command!

You can start the MySQL daemon with:

cd /usr ; /usr/bin/mysqld_safe &

You can test the MySQL daemon with the benchmarks in the 'sql-bench' directory:

cd sql-bench ; perl run-all-tests

Please report any problems with the /usr/bin/mysqlbug script!

The latest information about MySQL is available on the web at

<a href="http://www.mysql.com/">[url]http://www.mysql.com[/url]</a>

2. cp support-files/mysql.server /etc/init.d/mysql（源码路径）

3 ./usr/bin/mysqld_safe &amp;

4./etc/init.d/mysql start

5 mysqladmin -u root password "new password"

解决root关于本机登陆可以，远程同样密码帐户无法用mysql administrator连接

在使用MySQL-Front连接mysql的时候发生的这个错误

ERROR 1130: Host 192.168.88.160 is not allowed to connect to this MySQL server

mysql -u root -p

mysql&gt;use mysql;

mysql&gt;update user set host = ‘%’  where user =’root’;

mysql&gt;flush privileges;

mysql&gt;select ‘host’,'user’ from user where user=’root’;

现在就可以连接了！

2. 授权法。例如，你想myuser使用mypassword从任何主机连接到mysql服务器的话。

如果你想允许用户myuser从ip为192.168.1.3的主机连接到mysql服务器，并使用mypassword作为密码

 本文转自 pgmia 51CTO博客，原文链接:http://blog.51cto.com/heyiyi/112959