quartz/content/notes/cosc203-lab20.md
2022-09-22 20:49:34 +12:00

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---
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)