CST 311 Week 8

 

WELCOME TO WEEK 8

Learning Journal

We are at the end of this course, finishing up with a short lecture and quiz, mostly focusing on Programming Assignment 4. So far, we have successfully created the Mininet network, the demo video, the diagram, and got the chat server to allow three users to connect. We are waiting for the TLS certification to finish implementing the second part of the project. Today, we have a meeting to discuss what we still need to do, as well as any questions or help needed. 

This final week, we learned about Operational Security, including firewalls. There are three types of firewalls: stateless packet filters, stateful packet filters, and application gateways. We also learned about Deep Packet Inspection. Firewalls block unwanted traffic, and although they provide protection, attackers can sometimes still sneak in. 

Another device we covered is the IDS (Intrusion Detection System), which also provides protection by offering deep packet inspection and examining the correlation among multiple packets. I also learned that routers can provide security; however, it is limited and would slow down both the router and network performance. This is why firewalls are dedicated to doing that job and are faster.

I really enjoyed the class and learned a lot about the OSI model and the different layers. Networking was really interesting, and I hope to continue learning more about it in the future.

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