What am I supposed to do? Unix dig tool?

Question

In this problem, we use the useful tool dig tool available on Unix and Linux
hosts to explore the hierarchy of DNS servers. Recall that in Figure 2.21 , a
DNS server higher in the DNS hierarchy delegates a DNS query to a DNS
server lower in the hierarchy, by sending back to the DNS client the name of
that lower-level DNS server. First read the man page for dig, and then answer
the following questions.

a. Starting with a root DNS server (from one of the root servers [a-m].rootservers.
net), initiate a sequence of queries for the IP address for your
department's Web server by using dig. Show the list of the names of DNS
servers in the delegation chain in answering your query.

Could someone show me an example of what I'd type in the unix command line?

Bob M · Accepted Answer

The site below gives a good explanation of the results returned from the dig command.

After reading it and getting a general feel of what the information means try digs on a few of the main sites around the net, the yahoo one is a good place to start.

dig www.yahoo.com
dig www.google.com

dig your own domain if you have one.

ratter_of_the_shire · Answer

just start with

$man dig

Always start with the man command if you are unsure. If you aren't sure what the man command does

$man man

while you're at it, you might as well

$man apropos

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What am I supposed to do? Unix dig tool?

2 Answers