---
title: "cosc203-lab20"
aliases: 
tags: 
- cosc203
- lab
---

1. DNS request protocol is UDP 

![](https://i.imgur.com/dSOSdRK.png)

2. The ports of the DNS queries are:
	1. dest of query: 53 ![](https://i.imgur.com/FoAwUQV.png)
	2. source of response: 53 ![](https://i.imgur.com/knH3W2I.png)

3. There were 12 dns queries. They were all type A![](https://i.imgur.com/nFGVbI7.png) ![](https://i.imgur.com/uKkUuFG.png)

4. Anwers within responses
	1. 2 answers ![](https://i.imgur.com/plLag5j.png)
	2. 3 ![](https://i.imgur.com/5AKS2tn.png)
	3. 1 ![](https://i.imgur.com/srCM9oq.png)
	4. 1 ![](https://i.imgur.com/lALFEjL.png)
	5. 7 ![](https://i.imgur.com/OXFBaOy.png)
	6. 6 ![](https://i.imgur.com/MHOIR2B.png)

5. dns responses after nslookup on www.otago.ac.nz
	1. ![](https://i.imgur.com/PRKiVlq.png)
	2. ![](https://i.imgur.com/d1P36MI.png)
	3. ![](https://i.imgur.com/drMqoQG.png)
	4. ![](https://i.imgur.com/gprPSoO.png)
	5. ![](https://i.imgur.com/u3Imagz.png)
	6. ![](https://i.imgur.com/M1ZFhwF.png)
	7. ![](https://i.imgur.com/bgVmCub.png)
	8. ![](https://i.imgur.com/eiHDN1m.png)
	9. ![](https://i.imgur.com/7A5aHYe.png)