Help students understand the need for DNS in a computer network with this excerise that demonstrates the DNS on an isolated network with Raspberry Pi. via raspberry.org
It is recommended that the previous DHCP lesson has been completed by all students before attempting this. It is important to complete them in this order because understanding DNS requires the understanding of its relationship to DHCP. Please note that DNS is a fairly complex subject and this resource is only an introduction to the concept. It is not intended to be a comprehensive guide. Distributed DNS is not covered in detail but it will be briefly discussed.
You may have noticed that it can be a bit tricky to remember IP addresses. They are comprised of four 8-bit numbers separated by dots; for example, 192.168.0.146. Human beings often find it difficult to remember a sequence of numbers like this, and find it a lot easier to remember a word or a name instead.
When we want to access resources on our network such as a web server we currently have to remember the IP address. How can we make it easier for people to connect to network servers without having to remember the IP address numbers?
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