[問題] 初心者問關於TCP/IP與raw socket

看板C_and_CPP (C/C++)作者pugboy時間13年前 (2012/12/28 13:22)推噓3(3推 0噓 0→)

留言3則, 3人參與討論串1/1

不好意思如果不能問Project我會自D 最近有個Project要開始寫了題目如下: 1.In an environment with two hosts, host X and host Y, write a packet sniffer on host Y to collect TCP/IP packets handled by host X. 2.For IP packets belong to a TCP connection, use the sequence numbers of the IP packets to assemble the IP packets and retrieve the contents delivered through the TCP connection. (P.S.: For each TCP connection, data can be transmitted in both directions. Hence, in your report, for each TCP connection, list incoming data and outgoing data of a TCP connection separatelly.) 3.At host X, use the following services, ftp, telnet, ssh, gmail, hotmail, Yahoo mail, NCU e-mail, twitter, and facebook. Then at host Y, record the data entering and leaving host X in your report. Besides, among the above services, which ones transmit passwords in plain text? 4.Turn on host X for 24 hours but do not use it. The 24 hours can be distirbued on different days. Then use host Y to collect the IP packets and data entering and leaving host X. Analyze the data you collect in the above steps to see which external hosts try to connect to which TCP ports of host X. 5.Besides, describe when no one operate host X which TCP connections are initialized by host X to which ports of which external hosts. Write the above results in your report. 打算環境是使用Linux的Ubuntu或者是Window系統, 可以請問版上的高手要從哪個方向? 或是可以介紹哪本書籍可以參考... 可以指點一下嗎感謝萬分... -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.115.156.203