CS329 Assignment 6
Due: Monday. 3/4/13
If you can't get ping to work it may be that the a firewall is
blocking your packets. It's OK to just report the results you get
in that case.
You will use several DNS and IP tools to complete the following
exercise. There tools are available on the command line in Unix,
Linux or Mac OSX. In Windows, you can run some of them using Cmd, but
they are also available on the Internet. For example, you can visit
Put all of your answers into an html document and post it onto your
webspace. Call your file assignment6.html. Your HTML can be as fancy
or as simple as you like. Send the URL to the TA. As usual, make
sure that the page is world-readable.
- Run ping on the web sites www.cnn.com, www.amazon.com,
www.utexas.edu, wwww.txstate.edu. Get at least 4 results from each.
Display them and explain why these might be different for a single
website and between websites.
- Use dig or nslookup to determine the IP addresses of each of the
four sites listed above.
- Use the IP information feature from http://www.dnsstuff.com/ to
track down the city and country of this IP address: 220.127.116.11.
Next do a tracepath or traceroute to that IP address (or use the
domain name). Include the city and country of origin of that IP
address and indicate how many hops it took to get there.
- Use the WHOIS database to find out what you can about the website
www.cli.com. Summarize what you discovered. You can use the WHOIS
features in Firefox or from http://www.dnsstuff.com/. Explain what
factors you used from the WHOIS database to find out about this