问题 问答题

【说明】
一台装有Red Flag Server 4.0操作系统的计算机,该计算机的主机名是webserver,所安装网卡上配置的IP地址,洲S域名、用户主目录如表2-7所示。现在要把这台计算机用rfapache管理工具配置成一台 Apache Web服务器.
                                             表2-7 虚拟服务器配置信息表

用户名 IP地址 DNS域名 用户主目录
Corp 192.168.0.10 www.corp.com /var/www/corp
Dept1 192.168.0.11 www.dept1.com /var/www/dept1
Dept2 192.168.0.12 www.dept2.com /var/www/dept2
Dept3 192.168.0.13 www.dept3.com /var/www/dept3

【问题6】
图2-12是虚拟主机的“访问许可”属性配置界面。假设不允许内网IP地址范围是172.16.10.0/20的计算机访问用户“Dept2”的Web站点,请设置(9)~(11)空缺处的相应属性配置参数。
“访问”(控制属性): (9)
“IP地址/域名”(范围):从 (10) (11)


A.允许 B.禁止

答案

参考答案:(9)B,或禁止
(10)172.16.10.1
(11)172.16.15.254

解析:[要点解析]
这是一道要求读者掌握访问许可配置的实际操作题。本题所涉及的知识点如下。
“访问许可”标签页用于根据IP地址或域名等来授权或者禁止对资源的访问。
在图2-12“访问许可”配置界面中,各选项的功能说明见表2-13。
                               表2-13“访问许可”配置界面各选项的功能说明表

选项
阅读理解

0ur village carpenter(木匠),John Hill, came one day and made a dining table for my wife.  He made it just the right size to fill the space between the two window.  When I got home that evening, John was drinking a cup of tea and writing out his bill( 账单) for his job.

My wife said to me quietly, “That’s his ninth cup of tea today. ”But she said in a loud voice, “It’s a beautiful table, dear, isn’t it?” “I’ll decide about that when I see the bill,” I said.  John laughed and gave me his bill for the work.  I read:

One dining table                 10th November, 2011

Cost of wood                    $ 17:00

Paint                           $1. 50

Work, 8 hours($1 an hour)          $8. 00

Total                           $36. 50

When I was looking at the bill, John said,” It’s been a fine day, hasn’t it? Quite sunny. ”

“Yes,” I said.  “I’m glad it’s only the 10th of November. ”

“Me, too,” said John, “you wait—it will be a lot colder by the end of the month. ”

“Yes, colder—and more expensive! Dining table will be $20 more expensive on November 30th, won’t they, John?”

John looked hard at me for half a minute.  Was there a little smile in his two blue eyes? I gave his bill back to him.

“If it’s not too much trouble, John,” I said,“Please add(加) it up again, You can forget the date-------”

I paid him $26. 50 and he was happy to get it.

小题1:Why did John talk about the weather when the writer was looking at the bill?

A. Because he didn’t want the writer to check the bill carefully.

B. Because he wanted to show that he was really polite.

C.Because it’s a good way to communicate with each other.

D.Because he wanted to confirm what the weather was like.小题2:How much would John ask for if he made a dining table on the last day of December according to his bill?

A.$ 26. 50

B.$36. 50

C.$56. 50

D.$57. 50小题3:When John got the money, he was happy because__________________________.

A. he felt lucky to get the money for his work

B. he got paid a lot more than usual for his work

C. he got as much money as he had expected

D. he didn’t have to add up the costs any more小题4:Which word can best describe John?

A. Clever

B. Silly

C. Dishonest

D. Humorous(幽默的)小题5:What can we learn about John from the passage?

A. He made a mistake carelessly in the bill

B. He tried to get more money for his work.

C. He had written the bill before the writer got home

D. He had talked about the bill with the writer’s wife.