Wireshark Lab:

DNS v$8\mathrm{.}0$DNS Lab Report

Questions:

$1.$ Run nslookup to obtain the IP address of a Web server in Asia. What is the IP address of that server?

$2.$ Run nslookup to determine the authoritative DNS servers for a university in Europe.

$3.$ Run nslookup so that one of the DNS servers obtained in Question $2$ is queried for the mail servers for Yahoo! mail. What is its IP address?

$4.$ Locate the DNS query and response messages. Are then sent over UDP or TCP$?$

$5.$ What is the destination port for the DNS query message? What is the source port of DNS response message?

$6.$ To what IP address is the DNS query message sent? Use ipconfig to determine the IP address of your local DNS server. Are these two IP addresses the same?

$7.$ Examine the DNS query message. What $$Type$$ of DNS query is it$?$ Does the query message contain any $$answers$?$

$8.$ Examine the DNS response message. How many $$answers$$ are provided? What do each of these answers contain?

$9.$ This web page contains images. Before retrieving each image, does your host issue new DNS queries?

$10.$ What is the destination port for the DNS query message? What is the source port of DNS response message?

$11.$ To what IP address is the DNS query message sent? Is this the IP address of your default local DNS server?

$12.$ Examine the DNS query message. What $$Type$$ of DNS query is it$?$ Does the query message contain any $$answers$?$

$13.$ Examine the DNS response message. How many $$answers$$ are provided? What do each of these answers contain?

$14.$ To what IP address is the DNS query message sent? Is this the IP address of your default local DNS server?

$15.$ Examine the DNS query message. What $$Type$$ of DNS query is it$?$ Does the query message contain any $$answers$?$

$16.$ Examine the DNS response message. What MIT nameservers does the response message provide? Does this response message also provide the IP addresses of the MIT nameservers?