MIT EECS - 6.033
Read Book section 4.4: "Case study: The Internet Domain Name
System (DNS) "
Question for Recitation
Write up an answer to the following questions and turn it in at
the beginning of recitation:
Look at Figure 4.10. Find the name server names.edu
(192.14.71.191, at the top center of the diagram). For
both questions, assume that this name server is malfuctioning,
either because of a flaw in its software or because of the actions
of the attacker.
- Consider the name client
ginger.cse.pedantic.edu
(18.26.0.82, at the bottom left of the diagram). Will
this client be able to resolve the
name ginger.Scholarly.edu as shown by the arrows? Why or
why not?
- Now consider the name client
thyme.pedantic.edu (18.62.5.70, at
the bottom right of the diagram). Will this client be able to resolve the name
anise.pedantic.edu as shown by the arrows? Why or why not?
If you consider either question to be badly-posed or
under-specified, be explicit about any additional assumptions you need
to make.
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