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在一个数据库中，可能存在多个表，这些表都是相互关联的。我们继续使用前面的例子。前面建立的表中包含了员工的一些基本信息，如姓名、性别、出生日期、出生地。我们再创建一个表，该表用于描述员工所发表的文章，内容包括作者姓名、文章标题、发表日期。
1、查看第一个表mytable的内容：
mysql> select * from mytable; +----------+------+-----
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CCIE之路——路由过滤命令详解
（一） Route Maps
特性：
Route Maps类似于access lists，不同之处在于Route Maps可以改变Packets/Routes的部分属性。
用途：
Route Maps主要用于Redistribution和Policy Routing及BGP的实现。
实现：
Policy Routing发送Packets到Route Maps实现
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如何关闭selinux：
/usr/sbin/setenforce 0 关闭/usr/sbin/setenforce 1 开启或在/etc/selinux/config中改SELINUXTYPE=permissive 关闭 disabled也可以。反正不是enforcing就是关闭SELINUXTYPE=enforcing 开启或者是启动时加启动参数selinux=0关闭
关闭ipv6以加快域
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