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MySQL访问限制的实际设置的2种方法

Jun 07, 2016 pm 04:13 PM
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以下的文章主要讲述的是MySQL访问限制的实际设置的2种方法,一种是Grant 命令授权,另一种是设置用户的每一项权限,以下就是文章的具体内容的描述,希望会给你带来一些帮助在此方面。 我们主要是采用这两种方法来设置用户。 进入到MySQL(和PHP搭配之最佳组合

以下的文章主要讲述的是MySQL访问限制的实际设置的2种方法,一种是Grant 命令授权,另一种是设置用户的每一项权限,以下就是文章的具体内容的描述,希望会给你带来一些帮助在此方面。

我们主要是采用这两种方法来设置用户。

进入到MySQL(和PHP搭配之最佳组合)执行目录下(通常是c:MySQL(和PHP搭配之最佳组合)in)。输入MySQL(和PHP搭配之最佳组合)d-shareware.exe,输入MySQL(和PHP搭配之最佳组合) --user=root MySQL(和PHP搭配之最佳组合) ,不然不能添加新用户。进入到MySQL(和PHP搭配之最佳组合)>提示符下进行操作。

假设我们要建立一个超级用户,用户名为system,用户口令为manager。

MySQL访问限制的设置方法方法一

用Grant 命令授权,输入的代码如下:

<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>GRANT ALL PRIVILEGES ON *.* TO system@localhost IDENTIFIED BY ’manager’ WITH GRANT OPTION;  </span></span></li></ol>

应显示:Query OK, 0 rows affected (0.38 sec)

MySQL访问限制的设置方法方法二

对用户的每一项权限进行设置:

<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>INSERT INTO user VALUES(’localhost’,’<p></p>system’,PASSWORD(’manager’), ’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’);  </span></span></li></ol>

对于3.22.34版本的MySQL(和PHP搭配之最佳组合),这里共14个"Y",其相应的权限如下(按字段顺序排列):

权限 表列名称 相应解释 使用范围

select Select_priv 只有在真正从一个表中检索时才需要select权限 表

insert Insert_priv 允许您把新行插入到一个存在的表中 表

update Update_priv 允许你用新值更新现存表中行的列 表

delete Delete_priv 允许你删除满足条件的行 表

create Create_priv 允许你创建新的数据库和表 数据库、表或索引

drop Drop_priv 抛弃(删除)现存的数据库和表 数据库或表

reload Reload_priv 允许您告诉服务器再读入授权表 服务器管理

shutdown Shutdown_priv 可能被滥用(通过终止服务器拒绝为其他用户服务) 服务器管理

process Process_priv 允许您察看当前执行的查询的普通文本,包括设定或改变口令查询 服务器管理

file File_priv 权限可以被滥用在服务器上读取任何可读的文件到数据库表 服务器上的文件存取

grant Grant_priv 允许你把你自己拥有的那些权限授给其他的用户 数据库或表

references References_priv 允许你打开和关闭记录文件 数据库或表

index Index_priv 允许你创建或抛弃(删除)索引 表

alter Alter_priv 允许您改变表格,可以用于通过重新命名表来推翻权限系统 表

如果创建用户时只有select、insert、update和delete权限,则允许用户只能在一个数据库现有的表上实施操作.

下面就可以创建我们要用到的数据库了,我们直接输入. 例如:我们要创建数据库名为XinXiKu,可用如下代码:

<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>create database XinXiKu;  </span></span></li></ol>

应显示:Query OK, 1 row affected (0.00 sec) 

以上的相关内容就是对MySQL访问限制的设置方法的介绍,望你能有所收获。


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