About this Course

How does the Web work? Under the hood of HTTP there's a whole stack of networking protocols.

Explore the underpinnings of the net with tools like traceroute, tcpdump, and nc.

Course Cost
Free
Timeline
Approx. 2 weeks
Skill Level
Beginner
Included in Course
  • Icon course 01 3edf6b45629a2e8f1b490e1fb1516899e98b3b30db721466e83b1a1c16e237b1 Rich Learning Content

  • Icon course 04 2edd94a12ef9e5f0ebe04f6c9f6ae2c89e5efba5fd0b703c60f65837f8b54430 Interactive Quizzes

  • Icon course 02 2d90171a3a467a7d4613c7c615f15093d7402c66f2cf9a5ab4bcf11a4958aa33 Taught by Industry Pros

  • Icon course 05 237542f88ede3178ac4845d4bebf431ddd36d9c3c35aedfbd92e148c1c7361c6 Self-Paced Learning

  • Icon course 03 142f0532acf4fa030d680f5cb3babed8007e9ac853d0a3bf731fa30a7869db3a Student Support Community

Join the Path to Greatness

This free course is your first step towards a new career with the Full Stack Web Developer Nanodegree Program.

Free Course

Networking for Web Developers

Enhance your skill set and boost your hirability through innovative, independent learning.

Icon steps 54aa753742d05d598baf005f2bb1b5bb6339a7d544b84089a1eee6acd5a8543d

Course Leads

  • Karl Krueger
    Karl Krueger

    Instructor

What You Will Learn

Lesson 1

From Ping to HTTP

  • Begin using command-line tools to explore the network.
  • Ping to check hosts, and nc (netcat) for webservers.
  • Learn about port numbers and the layering of HTTP on top of TCP.
Lesson 1

From Ping to HTTP

  • Begin using command-line tools to explore the network.
  • Ping to check hosts, and nc (netcat) for webservers.
  • Learn about port numbers and the layering of HTTP on top of TCP.
Lesson 2

Names and Addresses

  • Learn about the Domain Name System (DNS).
  • Register your own domain name for your web server.
  • Learn more about the binary representation of IP addresses.
Lesson 2

Names and Addresses

  • Learn about the Domain Name System (DNS).
  • Register your own domain name for your web server.
  • Learn more about the binary representation of IP addresses.
Lesson 3

Addressing and Networks

  • Network blocks and interfaces.
  • Network address translation (NAT).
  • IPv6.
Lesson 3

Addressing and Networks

  • Network blocks and interfaces.
  • Network address translation (NAT).
  • IPv6.
Lesson 4

Protocol Layers

  • Use tcpdump to examine the packets that make up the requests and responses.
  • Explore three protocols: ping, DNS, and HTTP.
  • Learn more about how TCP sessions work.
Lesson 4

Protocol Layers

  • Use tcpdump to examine the packets that make up the requests and responses.
  • Explore three protocols: ping, DNS, and HTTP.
  • Learn more about how TCP sessions work.
Lesson 5

Big Networks

  • Learn more about bandwidth, latency, filtering, and other key properties.
Lesson 5

Big Networks

  • Learn more about bandwidth, latency, filtering, and other key properties.

Prerequisites and Requirements

You have written code that makes use of HTTP. As a beginning backend developer, you may have written code that accepts or performs HTTP requests. But you'd like to know more about what's going on "under the hood" when you use HTTP.

You can use the Linux command line. To follow the material in this course, you'll need to enter commands into the shell and make sense of their output. You'll use command-line programs like ping and tcpdump to gather information about computers on the network.

You have used the Internet. If you're looking at this page, you pass this requirement! This course does not assume that you are configuring routers or building firewalls in your spare time. It is really intended as an introduction.

You have access to a Linux system to run commands. If you're taking this course as part of a Udacity Nanodegree program, you can use the Linux-based development environment that we have set up for you. Find out how to access it here. Many of the practical exercises in this course can be done using another Unix-like shell environment, but you may get different results for some exercises.

See the Technology Requirements for using Udacity.

Why Take This Course

As a web developer, it's handy to know a bit about the TCP/IP stack, IP addressing, DNS, and other protocols that underlie the Web technologies you use.

What do I get?
  • Instructor videos
  • Learn by doing exercises
  • Taught by industry professionals

Thanks for your interest!

We'll be in touch soon.

Icon globe e82eae5d45465aba4fbe4bb746905ce55dc3324f310b79c60e4a20089057d347

Udacity 现已提供中文版本! A Udacity tem uma página em português para você! There's a local version of Udacity for you! Sprechen Sie Deutsch?

Besuchen Sie de.udacity.com und entdecken Sie lokale Angebote, unsere Partnerunternehmen und Udacitys deutschsprachigen Blog.

前往优达学城中文网站 Ir para a página brasileira Go to Indian Site Icon flag de deedb1a7a695700236cb6ef4204ddbede5d197dab9b47716c87a0b4d5d9fc325 Zu de.udacity.com continue in English