Fundamentals of Networking Engineering

Fundamentals of Networking Engineering | Udemy
English | Size: 9.84 GB
Genre: eLearning

Understanding the first principles of networking to build low latency and high throughput backends

What you’ll learn
IP Protocol
TCP Protocol
UDP Protocol
Understand the circumstances where requests and responses are slowed down
Learn how DNS works
Learn how TLS works
Learn the building blocks of TCP/IP Protocol
Learn the OSI Model and where your application fits in it
Understand the performance impact of TCP/IP in Backend applications
Make better decisions on what protocol to select for the Backend
Build and Design better TCP/UDP Backends
Use Wireshark to inspect traffic
Use TCPDUMP to inspect traffic
Build TCP and UDP Servers with multiple languages (Javascript and C)
Networking with Docker

We are entering an era in software engineering where we rely on libraries and frameworks to do most of our work. While this is useful and save tremendous dev hours, it creates leaky abstractions that manifest in form of performance degradation, unexpected errors, 100% CPU , network and disk usage, hangs, latency and many other. It becomes difficult to articulate what goes wrong on the backend and how to fix it when engineers don’t understand the basic building block of what they are interacting with.

Network communication is one of the most critical pieces in backend engineering. And the TCP/IP Internet suite is the basic fundemntal building block of communications that link the frontend to the backend. Any protocol we use eventually gets encapsulated into either a TCP segment or UDP datagram. That packet is wrapped in an IP packet which is placed into a frame and then sent across the network. These layers are important to understand for backend engineers in order to optimize the stack, minimize latency, and increase throughput. What matters is the true understanding of these pieces and not just memorizing definitions and packet headers to pass an exam. If an engineer truly understood what is happening when their backend API receives an HTTP POST request for example, they will be astonished at how much is happening behind the scenes. They would completely change the way they approach backend API designs, they will try to select the best protocol for the job, and they will tune that protocol to its maximum potential. They will start asking questions about frameworks and libraries that nobody else does. It is those questions that will make them fully utilize those framework to their maximum potential.

This course is primarily designed for backend engineers who built applications, services or APIs and want to take their skillset to the next level. If you are a frontend engineer who are interested in the backend and have attempted to build backend apps before this course is also for you. If you are a network engineer who already know the basic fundamentals and want to start building backend applications effectively this course might help you bridge the gap

This course is not designed for those who want to pass network certification tests (CCNA, CCNP, CCIE etc..)

Who this course is for:
Backend engineers
Frontend engineers who are interested to start building Backend apps
Full stack engineers
DevOps engineers
Site reliability engineers

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