Network:Introduction - Exercises

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Exercises on networking - introductory level

Here we will add exercises on networking on a very basic level.

TODO: Write more exercises, and solutions!

Find IP for the following hosts

  • www.gnu.org
  • www.sunet.se
  • www.gu.se
  • www.gnu.org

Hint: host is a nice command, as is nslookup

Why do you think that your name servers are assigned with the IP

Why are the name servers (see example below) assigned using an IP rather than via host names on your system?

Example of two name servers:

nameserver 8.8.8.8
nameserver 8.8.4.4

Hint: Your computer needs to contact the DNS when the user or some application requests access to a web address etc, and in order to do that, it needs to know... what?

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