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解决mysql不能远程连接数据库方法

Jun 07, 2016 pm 05:51 PM

一般的mysql是不建义开启远程访问权限的,这样相对来说安全一些,不过今天我来为需要远程访问权限朋友介绍一下。

1、登陆   

   mysql -u root -p

   查看user表

 代码如下 复制代码

mysql> use mysql;
Database changed
mysql> 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

 代码如下 复制代码

mysql> use mysql;
Database changed
mysql> grant all privileges  on *.* to root@'%' identified by "root";
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)

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)

 代码如下 复制代码

use mysql;

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

这样在远端就可以通过root用户访问Mysql.


另一种方法

mysql默认是不可以通过远程机器访问的,通过下面的配置可以开启远程访问.

  我的mysql环境是ubuntu+mysql5

  1.修改/etc/mysql/my.conf,修改bind-address,指定为本机实际ip地址,你的my.con修改完大概是如下的样子

 

 代码如下 复制代码

  [mysqld]
 

 #
  # * basic settings
  #
  default-character-set=utf8
  default-storage-engine=innodb
  bind-address    = 192.168.1.107
  user            = mysql
  pid-file        = /var/run/mysqld/mysqld.pid
  socket          = /var/run/mysqld/mysqld.sock
  port            = 3306
  basedir         = /usr
  datadir         = /var/lib/mysql
  tmpdir          = /tmp
  language        = /usr/share/mysql/english
  skip-external-locking
  

2.用root登陆mysql执行如下命令

 代码如下 复制代码
 grant all on sonardb.* to sonar@'%' identified by '123456';
  grant all on sonardb.* to sonar@localhost identified by '123456';

  sonardb替换为你想访问的数据库名,sonar是你的想使用的用户名,123456替换为你的密码,这样就开启了远程访问功能.


更多详细内容请查看:http://www.111cn.net/database/mysql/34989.htm


上面的两种方法一种是直接用root用户在cmd模式下操作,一种是在配置文件里面操作,大同小义了吧。

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