This response message does not include IP addresses.Ģ0. What MIT nameservers does the response message provide? Does this response message also provide the IP addresses of the MIT namesers? There is also two type NS DNS queries that contain no answers.ġ8. It is a type PTR DNS query that contains no answers. What “Type” of DNS query is it? Does the query message contain any “answers”? The IP address that the DNS query message is sent to 10.40.4.44, which is the same as my local DNS server.ġ7. To what IP address is the DNS query message sent? Is this the IP address of your default local DNS server? This answer contains the next DNS server to query en route to. The first DNS response message contains one answer. How many “answers” are provided? What do each of these answers contain? What “Type” of DNS query is it? Does the query message contain any “answers”? This is the same IP address of my local DNS server.ġ3.
The DNS query message is sent to IP 10.40.4.44. To what IP address is the DNS query message sent? Is this the IP address of your default local DNS server?
The source port of the DNS response message is also port 53.ġ2. The destination port for the DNS query message is port 53. What is the destination port for the DNS query message? What is the source port of DNS response message? Yes, the host issues new DNS queries for each image.ġ1. Before retrieving each image, does your host issue new DNS queries? The destination IP address of the SYN packet corresponds to the address provided by the DNS response, 12.22.58.30.ġ0. Does the destination IP address of the SYN packet correspond to any of the IP addresses provided in the DNS response message? Consider the subsequent TCP SYN packet sent by your host. The answer contains the address of the website that it was queried for.ĩ. This DNS response message provided only one answer. How many “answers” are provided? What do each of these answers contain? This is the same IP address as the local DNS server.ħ. The DNS query message was sent to 10.40.4.44. To what IP address is the DNS query message sent? Use ipconfig to determine the IP address of your local DNS server. The destination port is port 53, and the source port is port 49927.Ħ. What is the destination port for the DNS query message? What is the source port of DNS response message? The query and response messages are sent via UDP.ĥ. Locate the DNS query and response messages. Run nslookup so that one of the DNS servers obtained in Question 2 is queried for the mail servers for Yahoo! mail. The authoritative DNS server for Cambridge is .uk.ģ. University of Cambridge was the target of this nslookup at. Run nslookup to determine the authoritative DNS servers for a university in Europe. The IP address of the server is 60.32.7.37.Ģ. Run nslookup to obtain the IP address of a Web server in Asia.
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