Introduction to DNS:

In this exercise you become familiar with several concepts:

• Tracerouter command
• Visual Route
• DNS server tracing
• DNS Cache
• Class exercise: download dns_sime_query and answer the questions we discussed in class

LAB:

1. Complete the DNS Lab and answer all the questions.
2. Read the slides on DNS Root Nameservers
3. Read Part I of the DNS exercise. Complete part II and answer all the questions. You can obtain a trail version of VisualRoute. You can also use traceroute command. This is an easy tutorial on Netstat.

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