Lab 04: Wireshark Lab of DNS and HTTP¶
Part 1: DNS Protocol¶
Usage of ipconfig:¶
ipconfig /all
ipconfig /displaydns
ipconfig /flushdns
Resource Records (RRs) in DNS distributed database:¶
(Name, Value, Type, TTL)
Usage of nslookup¶
nslookup [-option] name [server]
nslookup www.eecs.mit.edu
nslookup -type=A www.eecs.mit.edu
nslookup -type=NS mit.edu
nslookup -type=CNAME www.eecs.mit.edu name_of_server
Part 2: HTTP Protocol¶
Web Caching¶
If-modified-since / Etag
Wireshark Lab: HTTP¶
Please download Wireshark_HTTP_v6.1.pdf
for the
instruction of this lab session.