Please answer the following questions. Ask your instructor if they prefer to
receive the answers on paper or by email :
I: URLs, IP addresses, DNS names
- Check out the site www.circuses.com.
Is it a site for circuses? What organization appears to own the site?
-
Go to this site to learn
if a domain name using your own name is available. Scroll down the website to
the Whois Query area. Type your name in the box and click
Check name. The website will inform you if the domain name is available.
What domain name did you find? Were you able to find your first choice? How much does it cost?
- Are there domain names that are being sold for over $10,000?
Go to http://www.buydomains.com
Click on the tab "Find Domains". From the drop-down menu, choose "Search by US State".
Then choose a state by clicking on the map. List 3 high priced domains with their prices.
Why do you think these domains are so expensive? Why would someone pay that much for them?
- Use
nslookup
to find the IP addresses for these DNS names:
- www.ebay.com
- www.amazon.com
II: Tracing Internet Routes
For this question, you will trace the route to different sites on the Internet.
-
Open Visual Tracer in another window (right-click on it, then select "Open in New Window").
This site allows you to visually follow the transfer of packets of information from one router to the next as the packets travel from the source computer to
the destination computer. You can perform a trace from the host computer of the website or a proxy trace from your computer through the website's host computer.
-
If you are doing this from home, or elsewhere on campus, you will be able to use tracert from the DOS window.
To use tracert to a site called www.whatever.com, type tracert www.whatever.com.
Track a route to these sites. Some are outside the USA- for each website, list how many hops were necessary to reach it and which country the site is located.
- www.mit.edu
- www.berkeley.edu
- www.vniis.ru
- www.afd.co.uk
- www.iwayafrica.co.zw
III: Email: Mailing Lists, Netiquette, Email Abuses
- If you have not done so, subscribe to the course mailing list .
The CORC 1312 mailing list only accepts messages from the course coordinator.
- Read these
Netiquette Guidelines. Why is it considered rude to send messages that are all in capitals?
-
Find out what emoticons are and why they are useful.
What is the emoticon to indicate shock?
-
Read about the
Klez email worm. The Klez worm is discussed
here,
as well. What is particularly nasty about the way it spread?
- People continue to develop new computer viruses. McAfee, a computer security company, maintains a
world map of current computer virus
occurrences. What parts of the world have the most infected computers?
-
There are many warnings going around about viruses that are really hoaxes.
(A hoax is a deception or practical joke.)
Look up the "Olympic Torch" hoax at
Symantec.com. The list of hoaxes is alphabetical and you will find it about two-thirds
of the way down the list. Click on the name "Olympic Torch Hoax".
When was it first discovered? Explain why the it is not an actual threat.