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Step 1: Develop a list of five websites (you may not use Google.com in your list). Step 2: Using DNS (a program called nslookup or dig), look up the IP addresses of each of the websites. Example Use nslookup to find the IP addresses of Google: Tracys-MBP-3:~ tlavans nslookup www.google.com 192.168.1.1 Server: Address: 192.168.1.1#53 Non-authoritative answer: www.google. com Address: 172.217.6.4 Name: Step 3: Using the same program, look up the names of the machines with an IP address close to the IP addresses of the websites you listed in Question 3 (use the same first three octets of the IP address and very the last octet). You may need to try quite a few to find one that works. List your findings for at least three of the five websites you listed. Original Website IP address Discovered IP address Machine Name of Discovered IP Original Website URL 1. 2. 3. 4. 5.

Step 1: Develop a list of five websites (you may not use Google.com in your list). Step 2: Using DNS (a program called nslookup or dig), look up the IP addresses of each of the websites. Example Use nslookup to find the IP addresses of Google: Tracys-MBP-3:~ tlavans nslookup www.google.com 192.168.1.1 Server: Address: 192.168.1.1#53 Non-authoritative answer: www.google. com Address: 172.217.6.4 Name: Step 3: Using the same program, look up the names of the machines with an IP address close to the IP addresses of the websites you listed in Question 3 (use the same first three octets of the IP address and very the last octet). You may need to try quite a few to find one that works. List your findings for at least three of the five websites you listed. Original Website IP address Discovered IP address Machine Name of Discovered IP Original Website URL 1. 2. 3. 4. 5.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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IP Address Discovery Step 1: Develop a list of five websites (you may not use Google.com in your list). Step 2: Using DNS (a program called nslookup or dig), look up the IP addresses of each of the websites. Example Use nslookup to find the IP addresses of Google: Tracys-MBP-3:~ tlavans nslookup www.google.com 192.168.1.1 Server: Address: 192.168.1.1#53 Non-authoritative answer: Name: www.google.com Address: 172.217.6.4| Step 3: Using the same program, look up the names of the machines with an IP address close to the IP addresses of the websites you listed in Question 3 (use the same first three octets of the IP address and very the last octet). You may need to try quite a few to find one that works. List your findings for at least three of the five websites you listed. Original Website IP address Discovered IP address Machine Name of Discovered IP Original Website URL 1. 2. 3. 4. 5. 1 Add a table like the example shown to record your results. 2 How might an attacker use this same process to their advantage? Be specific.
Transcribed Image Text:IP Address Discovery Step 1: Develop a list of five websites (you may not use Google.com in your list). Step 2: Using DNS (a program called nslookup or dig), look up the IP addresses of each of the websites. Example Use nslookup to find the IP addresses of Google: Tracys-MBP-3:~ tlavans nslookup www.google.com 192.168.1.1 Server: Address: 192.168.1.1#53 Non-authoritative answer: Name: www.google.com Address: 172.217.6.4| Step 3: Using the same program, look up the names of the machines with an IP address close to the IP addresses of the websites you listed in Question 3 (use the same first three octets of the IP address and very the last octet). You may need to try quite a few to find one that works. List your findings for at least three of the five websites you listed. Original Website IP address Discovered IP address Machine Name of Discovered IP Original Website URL 1. 2. 3. 4. 5. 1 Add a table like the example shown to record your results. 2 How might an attacker use this same process to their advantage? Be specific.
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