"Computer Network-Top-Down Method" Notes

Solutions and codes for the programming assignment "Computer Networks - Top-Down Method", and translation of the official documentation of the Wireshark experiment.

Socket Programming Homework

Chapter 2 - Application Layer

Assignment 1: Web Server (Page120)

Official document: [Socket1_WebServer.pdf](SocketProgrammingAssignment/Job1-Web Server/Socket1_WebServer.pdf)
Translation: [Job 1-Web Server-Translation.md](SocketProgrammingAssignment/Job 1-Web Server/Job 1-Web Server-Translation.md)
Answer: [Assignment 1-Web Server-Answer.md](SocketProgrammingAssignment/Assignment 1-Web Server/Assignment 1-Web Server-Answer.md)

Assignment 2: UDPping program (Page121)

*Official document: [Socket2_UDPpinger.pdf](SocketProgrammingAssignment/Job 2-UDPping program/Socket2_UDPpinger.pdf)

Translation: [Assignment 2-UDPping Program-Translation.md](SocketProgrammingAssignment/Assignment 2-UDPping Program/Assignment 2-UDPping Program-Translation.md)
Answer: [Assignment 2-UDPping program-answer.md](SocketProgrammingAssignment/Assignment 2-UDPping program/Assignment 2-UDPping program-answer.md)

Assignment 3: Mail Client (Page121)

*Official document: [Socket3_SMTP.pdf](SocketProgrammingAssignment/Job 3-Mail Client/Socket3_SMTP.pdf)

Translation: [Assignment 3-Mail Client-Translation.md](SocketProgrammingAssignment/Assignment 3-Mail Client/Assignment 3-Mail Client-Translation.md)
Answer: [Assignment 3-Mail Client-Answer.md](SocketProgrammingAssignment/Assignment 3-Mail Client/Assignment 3-Mail Client-Answer.md)

Assignment 4: Multi-threaded Web Proxy Server (Page121)

Official document: [Socket4_ProxyServer.pdf](SocketProgrammingAssignment/Job 4-Multi-threaded Web Proxy Server/Socket4_ProxyServer.pdf)
Translation: [Assignment 4-Multi-threaded Web Proxy Server-Translation.md](SocketProgrammingAssignment/Assignment 4-Multi-threaded Web Proxy Server/Assignment 4-Multi-threaded Web Proxy Server-Translation.md)
Answer: [Assignment 4-Multi-threaded Web Proxy Server-Answer.md](SocketProgrammingAssignment/Assignment 4-Multi-threaded Web Proxy Server/Assignment 4-Multi-threaded Web Proxy Server-Answer.md)

Chapter 4 - Network Layer

Assignment 5: ICMP ping (Page287)

Official document: [Socket5_ICMPpinger(chap4).pdf](SocketProgrammingAssignment/Job 5-ICMPping program/Socket5_ICMPpinger(chap4).pdf)
Translation: [Assignment 5-ICMPping Program-Translation.md](SocketProgrammingAssignment/Assignment 5-ICMPping Program/Assignment 5-ICMPping Program-Translation.md)
Answer: [Assignment 5-ICMPping Program-Answer.md](SocketProgrammingAssignment/Assignment 5-ICMPping Program/Assignment 5-ICMPping Program-Answer.md)

Wireshark Experiment

(Note: The ID in brackets is the translator/author of the corresponding content.)

(CHN-STUDENTNote: The experimental results are only valid for the current packet capture result and are for reference only. If you have any questions, please feel free to discuss.)

Wireshark Experiment: Getting Started (Page52)

*Official document version 6: [Wireshark_Intro_v6.0.pdf](WiresharkLab/Wireshark Experiment-Intro/Wireshark_Intro_v6.0.pdf)

Official document version 7: [Wireshark_Intro_v7.0.pdf](WiresharkLab/Wireshark Experiment-Intro/Wireshark_Intro_v7.0.pdf)
Translation: [Wireshark Experiment-Intro.md](WiresharkLab/Wireshark Experiment-Intro/Wireshark Experiment-Intro.md) *Answer: [Computer Network Experiment-Introduction.pdf](WiresharkLab/Wireshark Experiment-Intro/Computer Network Experiment-Introduction.pdf) (CHN-STUDENT )

Wireshark Experiment: HTTP (Page121)

Official document version 6: [Wireshark_HTTP_v6.1.pdf](WiresharkLab/Wireshark Experiment-HTTP/Wireshark_HTTP_v6.1.pdf)
Official document version 7: [Wireshark_HTTP_v7.0.pdf](WiresharkLab/Wireshark Experiment-HTTP/Wireshark_HTTP_v7.0.pdf)
Translation: [Wireshark Experiment-HTTP.md](WiresharkLab/Wireshark Experiment-HTTP/Wireshark Experiment-HTTP.md)
Answer part 1: [Computer Network Experiment-HTTP1.pdf](WiresharkLab/Wireshark Experiment-HTTP/Computer Network Experiment-HTTP1.pdf) (CHN-STUDENT )
Answer Part 2: [Computer Network Experiment-HTTP2.pdf](WiresharkLab/Wireshark Experiment-HTTP/Computer Network Experiment-HTTP2.pdf) (CHN-STUDENT )

Wireshark Experiment: DNS (Page121)

Official document version 6: [Wireshark_DNS_v6.01.pdf](WiresharkLab/Wireshark Experiment-DNS/Wireshark_DNS_v6.01.pdf)
Official document version 7: [Wireshark_DNS_v7.0.pdf](WiresharkLab/Wireshark Experiment-DNS/Wireshark_DNS_v7.0.pdf)
Translation: [Wireshark Experiment-DNS.md](WiresharkLab/Wireshark Experiment-DNS/Wireshark Experiment-DNS.md)
Answer 1: [DNS-Reference Answer.md](WiresharkLab/Wireshark Experiment-DNS/DNS-Reference Answer.md) (Ying ) *Answer 2: [Computer Network Experiment-DNS.pdf](WiresharkLab/Wireshark Experiment-DNS/Computer Network Experiment-DNS.pdf) (CHN-STUDENT )

**(CHN-STUDENT Note: One server in the DNS experiment is no longer in use, and some phenomena cannot be explained. It is for reference only.) **

Wireshark Experiment: Exploring TCP (Page200)

Official document version 6: [Wireshark_TCP_v6.01.pdf](WiresharkLab/Wireshark Experiment-TCP/Wireshark_TCP_v6.0.pdf)
Official document version 7: [Wireshark_TCP_v7.0.pdf](WiresharkLab/Wireshark Experiment-TCP/Wireshark_TCP_v7.0.pdf)
Translation: [Wireshark_TCP_v7.0_Simplified_Chinese.pdf](WiresharkLab/Wireshark Experiment-TCP/Wireshark_TCP_v7.0_Simplified_Chinese.pdf) Contributor: Teacher of CHN-STUDENT *Answer: [Computer Network Experiment-TCP.pdf](WiresharkLab/Wireshark Experiment-TCP/Computer Network Experiment-TCP.pdf) (CHN-STUDENT )

Wireshark Experiment: Exploring UDP (Page201)

Official document version 6: [Wireshark_UDP_v6.1.pdf](WiresharkLab/Wireshark Experiment-UDP/Wireshark_UDP_v6.1.pdf)
Official document version 7: [Wireshark_UDP_v7.0.pdf](WiresharkLab/Wireshark Experiment-UDP/Wireshark_UDP_v7.0.pdf)
Translation: [UDP(Simplied_Chinese).pdf](WiresharkLab/Wireshark Experiment-UDP/UDP(Simplied_Chinese).pdf) (CHN-STUDENT ) *Answer: [Computer Network Experiment-UDP.pdf](WiresharkLab/Wireshark Experiment-UDP/Computer Network Experiment-UDP.pdf) (CHN-STUDENT )

(CHN-STUDENT Note: Since the UDP experiment is relatively simple, directly analyze the official results, the experimental results are for reference only.)

Wireshark Experiment: Exploring IP (Page240)

Official document version 6: [Wireshark_IP_v6.0.pdf](WiresharkLab/Wireshark Experiment-IP/Wireshark_IP_v6.0.pdf)
Official document version 7: [Wireshark_IP_v7.0.pdf](WiresharkLab/Wireshark Experiment-IP/Wireshark_IP_v7.0.pdf)
Translation: [Wireshark_IP_v7.0_Simplified_Chinese.pdf](WiresharkLab/Wireshark Experiment-IP/Wireshark_IP_v7.0_Simplied_Chinese.pdf) Contributor: Teacher of CHN-STUDENT *Answer: [Computer Network Experiment-IP.pdf](WiresharkLab/Wireshark Experiment-IP/Computer Network Experiment-IP.pdf) (CHN-STUDENT )

Wireshark Experiment: Exploring ICMP, Ping and Traceroute (Page282)

Official document version 6: [Wireshark_ICMP_v6.0.pdf](WiresharkLab/Wireshark Experiment-ICMP/Wireshark_ICMP_v6

Alon-Ben / Computer-Networking-A-Top-Down-Approach-NOTES