我的一道作业题

dodowang

“编写一个TCP socket程序，使其能够屏蔽外部网络对内部网络指定端口的打开，如：1033到1043，”

这不是需要用IPTABLES什么的进行包过滤才能实现的么，用socket编程怎么作？

xiaodi553

不懂
啊！！

dodowang

我把整个作业题贴上来吧，大家帮我参谋参谋，不过是E文的，大家多担待!!

You are a network manager of a standard best effort system working for a large organization. Your CEO offers a major promotion for anyone who can deliver a new network system which blocks employees from downloading certain multimedia applications. Specifically he wants to see a working piece of software which blocks outside applications which attempt to open certain ports within the company’s network. It is your goal to develop and test a socket program which allows access to only certain ports on the machines within your network.

a)      Outline the design of your new software and how it fits into a layered communications model.

b)      Write a TCP socket program (C or Java) which has blocking on port numbers 1033 through 1043.

c)      Load the program on two machines, and show that is functioning.

d)      Outline the advantages and disadvantages of your new system.