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HomeDatabaseMysql Tutorial数据安全之MySQL安全的二十三条军规_MySQL

数据安全之MySQL安全的二十三条军规_MySQL

Jun 01, 2016 pm 02:03 PM
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使用MySQL,安全问题不能不注意。以下是MySQL提示的23个注意事项: _Fu#sJzB  
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1.如果客户端和服务器端的连接需要跨越并通过不可信任的网络,那么就需要使用SSH隧道来加密该连接的通信。 %/EU_GcW1  
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2.用set password语句来修改用户的密码,三个步骤,先“mysql -u root”登陆数据库系统,然后“mysql> update mysql.user set password=password('newpwd')”,最后执行“flush privileges”就可以了。 !4r'1p  
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3.需要提防的攻击有,防偷听、篡改、回放、拒绝服务等,不涉及可用性和容错方面。对所有的连接、查询、其他操作使用基于ACL即访问控制列表的安全措施来完成。也有一些对SSL连接的支持。 EuFia.'6s  
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4.除了root用户外的其他任何用户不允许访问mysql主数据库中的user表; d5-_*N~  
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加密后存放在user表中的加密后的用户密码一旦泄露,其他人可以随意用该用户名/密码相应的数据库; 'f~2zic  
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5.用grant和revoke语句来进行用户访问控制的工作; ,^IE}*/(Y  
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6.不使用明文密码,而是使用md5()和sha1()等单向的哈系函数来设置密码; zX0 86h_y  
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7.不选用字典中的字来做密码; Pjkh[W0Ox  
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8.采用防火墙来去掉50%的外部危险,让数据库系统躲在防火墙后面工作,或放置在DMZ区域中; A[_Y-^R  
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9.从因特网上用nmap来扫描3306端口,也可用telnet server_host 3306的方法测试,不能允许从非信任网络中访问数据库服务器的3306号TCP端口,因此需要在防火墙或路由器上做设定; Q. "_qk|jv  
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10.为了防止被恶意传入非法参数,例如where ID=234,别人却输入where ID=234 OR 1=1导致全部显示,所以在web的表单中使用''或""来用字符串,在动态URL中加入%22代表双引号、%23代表井号、%27代表单引号;传递未检查过的值给mysql数据库是非常危险的; ^kNjMI\|k  
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