Lesson 1
From Ping to HTTP
Start exploring the network using low-level command-line tools such as ping and netcat.
Course
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
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.
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.
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.
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