TCP/IP + Nginx + Linux - Web Performance Optimization Tuning

Name: TCP/IP + Nginx + Linux - Web Performance Optimization Tuning
Rating: 3.4 (8 reviews)

DevOps - TCP/IP + Nginx + Linux Performance Tuning for Improved Application Web Performance

Created byAjeet Khan

Last updated 1/2025

English

What you'll learn

What are primers of Speed & Optimization
How TCP/IP Works and how to optimize it
Understanding BDP (Bandwidth Delay Product) with live demo and optimizing it
Understanding HTTP1.X and HTTP2
HTTP2 Demo
Optimizing Nginx Webserver - Hands-on
Tools which can help in optimization

Course content

10 sections • 46 lectures • 2h 10m total length

About Instructor0:32
Meet Ajit Khan, a senior DevOps engineer and AWS community builder who mentors and shares knowledge through Udemy and YouTube, while seeking AWS certification and championing continuous learning.
About Course2:50
Master web performance tuning across tcp/ip, nginx, and linux with hands-on demos of tcp optimization, http/2, gzip compression, fastcgi cache, server push, and bandwidth-delay product.
Udemy Tips1:00
Learn Udemy tips to enhance your course experience by selecting 720 pixel video quality, adjusting playback speed, enabling subtitles, and using the Q&A section and my courses at the top.
Productivity Hack Copilot (Optional)11:55
Discover how GitHub Copilot acts as an AI pair programmer in VSCode to write code faster. Learn to generate code, explain it, and create tests with Copilot's chat features.

What is TCP/IP?0:55
Understanding 3-Way handshake2:51
TFO - TCP Fast Open2:02
Learn how tcp fast open reduces latency when a page loads resources from many sources by allowing data with the syn packet, though effectiveness is limited by syn size.
Congestion Flow Control & Window Scaling3:29
Window Scaling Demo1:25
Demonstrates checking and enabling Linux window scaling with sysctl, verifying net.ipv4.tcp.window_scaling equals 1, and configuring it temporarily or permanently via the relevant file.
Slow Start (Cwnd)4:45
Slow Start Example3:25
Connection Reuse1:25
Congestion Avoidance2:05
Understanding BDP - Bandwidth Delay Product0:39

HTTP0.9 & HTTP1.1 Introduction (Capabilities & Limitations)3:24
KeepAlive Connections1:42
Learn how keep-alive connections minimize TCP handshakes, allowing a single connection to fetch multiple resources and reduce handshake overhead for faster page delivery.
HTTP Pipelining1:44
Multiple TCP Connections1:00
Explore how multiple TCP connections enable six parallel requests from client and server, boosting the initial round-trip packets, while highlighting resource overhead, bandwidth contention, and increased complexity.
Domain Sharding1:02
Concatenation & Spiriting2:03

Evergreen Optimization Best Practices - Part 13:41
Evergreen Optimization Best Practices - Part 21:21
Apply optimization practices by caching and compressing assets, reducing http header data, bundling resources across domains, using cookies to cut round trips, parallelizing requests, and optimizing for http/1.x and http/2.
Ending Note0:18
We continually improve the course by adding more contents and topics around performance optimization. We invite your feedback to guide future videos and course updates.

Requirements

Learners must have basic understanding of linux, nginx and a web application works in terms of request and response

Description

Welcome to the course “Application Performance Optimization”. This course is designed to help you get started to understand the primers of performance affecting your application and how you can tune these primers.

There could be a lot of factors that might affect the performance of your application. For example, the TCP connection parameters, webserver related optimization, tools that will help for performance debugging and tuning. We will be covering these topics in this course.

The application code itself can affect the performance of the application single handedly but the application code optimization is beyond the scope of this course.

We will be continuously improving the course by adding more topics around performance optimization.

However, we are open to your feedback. If you think some more topics around optimization should be included in the course then feel free to suggest us and we will try to create more videos on it and will append to this course.

What you will learn:

What is performance/speed, its components and why is it important to address it
What are the primers of Optimization
What is TCP/IP and how it works
What all factors affects TCP connections and how you can optimize it
Understanding Bandwidth Delay Product and optimizing using BDP with a Demo and actual calculation
What is HTTP1.X and its limitation. How HTTP2 overcomes the limitations of HTTP1.X and added improvement?
TCP Optimization Demo
Various Optimization for a Webserver (Nginx) including fastcgi cache, http2, compression etc.
Various Tools to help you optimize for example: ethtool, tuned
How to start optimizing and when to stop
Evergreen performance best practices

Intended Learners:

DevOps Engineers
System Administrator
IT Engineers
DevOps Aspirants
CloudOps Engineers
Cloud Engineers
Platform Engineers
SRE (Site Reliability Engineers)

Prerequisites:

Basic Understanding of Linux
Knowledge about Nginx & how it works
Basic Understanding of TCP/IP
How a web application works

Who this course is for:

DevOps Engineers
System Administrator
IT Engineers
Web Developers
Application Developer
DevOps Aspirants

TCP/IP + Nginx + Linux - Web Performance Optimization Tuning

What you'll learn

Explore related topics

Course content

Introduction4 lectures • 16min

Important Concepts3 lectures • 8min

TCP/IP10 lectures • 23min

HTTP1.X6 lectures • 11min

HTTP23 lectures • 4min

TCP Optimization5 lectures • 13min

Webserver Optimization (Nginx)6 lectures • 35min

Optimization Methodology6 lectures • 14min

Conclusion3 lectures • 5min

Performance Optimization Quiz0

Requirements

Description

Who this course is for: