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Networking for Web Developers


You've used the Internet. Now find out more about how it works.

You've used the Internet. Now find out more about how it works.

Last Updated March 7, 2022


No experience required

Course Lessons

Lesson 1

From Ping to HTTP

Start exploring the network using low-level command-line tools such as ping and netcat.

Lesson 2

Names and Addresses

Investigate the Domain Name System (DNS), which translates hostnames into IP addresses.

Lesson 3

Addressing and Networks

Investigate the structure and use of Internet addresses, including network blocks, interfaces, network address translation (NAT), and IPv6.

Lesson 4

Protocol Layers

Use tcpdump to examine packets that make up the requests and responses for three protocols: ping, DNS, and HTTP.

Lesson 5

Big Networks

Learn more about bandwidth, latency, filtering, and other properties that matter when users are accessing your application over the Internet.

Taught By The Best

Photo of Karl Krueger

Karl Krueger

Command Line Instructor

Before joining Udacity, Karl was a Site Reliability Engineer (SRE) at Google for eight years, building automation and monitoring to keep the world's busiest web services online.

The Udacity Difference

Combine technology training for employees with industry experts, mentors, and projects, for critical thinking that pushes innovation. Our proven upskilling system goes after success—relentlessly.

Demonstrate proficiency with practical projects

Projects are based on real-world scenarios and challenges, allowing you to apply the skills you learn to practical situations, while giving you real hands-on experience.

  • Gain proven experience

  • Retain knowledge longer

  • Apply new skills immediately

Top-tier services to ensure learner success

Reviewers provide timely and constructive feedback on your project submissions, highlighting areas of improvement and offering practical tips to enhance your work.

  • Get help from subject matter experts

  • Learn industry best practices

  • Gain valuable insights and improve your skills

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