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LifestyleFundamentals of Network Engineering (Udemy.com)
Understanding the first principles of networking to build low latency and high throughput backends
Created by: Hussein Nasser
Last updated May 2025
What you will 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
- Learn how Routing Works inside out
- 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
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 94 / 100
Course Description
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..)
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Instructor Details
- 4.7 Rating
6,986 Reviews
Hussein Nasser
Early in my career 20 years ago I built database applications without fully grasping their inner mechanics. Facing performance issues, racing conditions bug and even corruption often left me helpless.
I resolved to truly understand the workings of database systems, ensuring I knew every query from my app and its execution in the db and what I choose to make as a transaction and what I make into an atomic query.
From that day I have fascinated by pursuing deep understanding of what is happening behind the scenes in software. If you follow me here you would see deep dive posts about backend, databases and operating systems.
If you enjoy pursing the internals, I think you may like my courses.
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Reviews
By Jayesh Karli on 5/30/2026
Loved this course! I am working as professional backend engineer for 5 years now and after college while writing code sometimes we forget these details which are taught in college and this course was such a nice refresher.
By Kimberly Ann Timbreza on 2/28/2026
I left this rating because the course exceeded my expectations, provided clear explanations, and gave practical knowledge that I can apply immediately.
By Angelique Schouten on 2/13/2026
Without realizing, this kind of information is what I've been missing for way too long! Also very nicely explained and visualized with humor. Excited to continue
By Abdulwahhab A Alzahrani on 2/10/2026
Really amazing explanation, very well done. however to be honest the only downside is the irrelevant side talk which won't hurts but sometimes it gets annoying
By Khaled Adrani on 1/6/2026
Exactly what I needed, it reduced significantly the mystery behind networking for me as a software backend engineer and also successfully made me so curious about it as it can help me optimize my work and my applications!
By Ernest G Mhilu on 12/1/2025
l am taking this course in order to sharp my knowledge l have about Networking. And l always believes in studying different methods. So, my expectations are to overcome challenges in the daily activities.
By Udemy Udemy on 10/30/2025
I really enjoy this course. For a long time, I kept asking myself questions like, how does a client’s request actually reach my web server? It used to be a mystery to me but now, through this course, I’m finally starting to get some clues.
By Matt Travis on 9/23/2025
Somewhat entertaining, somewhat educational but a bit disjointed and random. Nothing seems really planned or structured, just reading some queues and rattling off the same boiler plate stuff. To be honest you will learn alot more just watching Network Chuck, David Bombal and Professor Messer completely free on Youtube...
By Peter Duricek on 5/30/2025
I was looking for some foundational knowledge about networking - a glimpse "into the wire." But I got so much more! Before this course, the way I saw what happened to my request before getting a response felt like going through a tunnel without lights: you'd somehow come out on the other side, but have no clue what happened along the way. Now I feel like I have reflectors! Thank you, Hussein!
By Ritu Deshpande on 1/8/2024
This course talks about Networking concepts from the perspective of practical applications which I believe what makes this course special. The instructor has clearly put a lot of effort researching and making this course. Would recommend 10/10.
- Video Duration:
18.4h - Price: $99.99 Track Price 11.99 Track Price
- Provider: Udemy
- Updated:
May 2025 - Level:
Intermediate - Language:
English - Certificate:
Yes
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