In this chapter, you learned how to improve performance at the network level between the edge of your infrastructure and your users. You now know more about the internet protocols under your application and how to optimize your use of them for the best effect.
We covered many layers of the networking stack at a high level, from IP and TCP to HTTP and HTTP/2. We also showed how TLS is used to protect communications and how key exchange works. We highlighted the different cipher algorithms that can be used and touched upon alternative protocols, such as WebSockets.
You learned how to take advantage of compression to shrink text and image files. This will reduce bandwidth and speed up delivery of assets. We also highlighted caching, and you should now see how important it is. We'll cover caching more in Chapter 9, Learning Caching and Message Queuing.
In the next chapter, you will learn how to optimize the performance inside your infrastructure. You will see how to deal with I/O latency...