Chapter 11. Managing network traffic and routing

Domain Name Service (DNS) resolution is at the heart of almost every digital connection you make. It’s how you browse the web, receive email, watch Netflix, and make Skype calls. DNS is the mechanism that translates a name, such as, into an IP address. When I want to learn a new topic, I don’t need to remember—I just enter in a web browser and browse some books! Network devices route traffic based on IP addresses, so you need an approach that helps those of us with bad memories to do things like buy books or pizza online.

Over the last few chapters, we’ve spent a lot of time learning about how to build applications that can scale, are highly available, and ...

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