问题 填空题

阅读以下说明,回答下列问题。

[说明]

某企业采用PIX防火墙保护公司网络安全,网络结构如下图所示。

编写下表的规则,设置防火墙的安全规则,允许外网主机133.20.10.10访问内网的数据库服务器10.66.1.101,同时允许内网和外网访问DMZ区的WWW服务器10.65.1.101。

序号规则名源地址目的地址方向协议端口动作
1访问数据库____________Outside->insideTCP1433______
2访问WWW______10.65.1.101Inside->DMZTCP80允许
3访问WWW______10.65.1.101Outside->DMZTCP80允许

 

答案

参考答案:133.20.10.10
10.66.1.101
允许
10.66.1.0/24
任意地址

解析:

编写表的规则,设置防火墙的安全规则,允许外网主机133.20.10.10访问内网的数据库服务器10.66.1.101,同时允许内网和外网访问DMZ区的WWW服务器10.65.1.101。

表第一行,设置允许外网主机133.20.10.10访问内网的数据库服务器10.66.1.101,因此源地址为133.20.10.10,目的地址为10.66.1.101,动作为允许。

表第二行,设置允许内网访问DMZ区的www服务器10.65.1.101,因此源地址为内网地址10.66.1.0/24。

表第三行,设置允许外网访问DMZ区的www服务器10.65.1.101,因此源地址为任意地址。

阅读理解

Happiness is for everyone. You don’t need to care about those people who have beautiful houses with large gardens and swimming pools or those who have nice cars and a lot of money and so on. Why? Because those who have big houses may often feel lonely and those who have cars may want to walk on the country roads at their free time.

In fact, happiness is always around you if you put your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health; when you get success, your friends will say congratulations to you; when you do something wrong, people around you will help you to correct it. And when you do something good to others, you will feel happy, too. All these are your happiness. If you notice a bit of them, you can see that happiness is always around you.

Happiness is not the same as money. It is a feeling of your heart. When you are poor, you can also say you are very happy, because you have something else that can’t be bought with money. When you meet with difficulties, you can say loudly you are very happy, because you have more chances to challenge(向…挑战)yourself. So you can not always say you are poor and you have bad luck. As the saying goes, life is like a revolving(旋转)door. When it closes, it also opens. If you take every chance you get, you can be a happy and lucky person.

小题1:Those who have big houses may often feel         .

A.happy

B.lonely

C.free

D.excited小题2:When you fall down in a PE class, both your teacher and your classmates will     .

A.laugh at you

B.play jokes on you

C.quarrel with you

D.help you up小题3:What will your friends say to you when you make great progress?

A.Oh, so do I

B.Congratulations

C.Good luck

D.It’s just so-so小题4: Which idea is NOT right according to the passage?

A.People who have cars would never like to walk in the open air

B.You can get help from others when you make mistakes

C.You can still be a happy person even if you have little money

D.Happiness is always around you though difficulties come towards you小题5: Which of the following is this passage about?

A.Bad luck

B.Good luck

C.Happiness

D.Life

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