1-3Networks
Aug 28
๐ Complete before class
- โQuiz 01 - Git
- ๐ Ch 1 Context (19โ27)
Learning Objectives
- Run a traceroute on multiple websites and identify how many network hops, which geographic locations, and which companies the data passes through.
- Explain what โthe cloudโ actually is in physical terms, including who owns the infrastructure data travels through.
- Compare traceroute results across a US site, an international site, and a personally-used site to identify patterns in network geography and ownership.
๐ Activity โ Traceroute (15 min)
Section titled โ๐ Activity โ Traceroute (15 min)โOpen geotraceroute.com a browser-based traceroute that maps each network hop geographically.
Run a trace on 3 sites and note: how many hops, which cities/countries the data passes through, and which companies own those hops (look at the hostnames ae-3.r01.chrlncus.qwest.net tells you a lot).
Suggested targets to compare:
- A major US site (google.com, nytimes.com)
- A site from another country (bbc.co.uk, theguardian.com)
- A site you actually use daily
Discuss (last 5 min): What surprised you? The phrase โthe cloudโ implies data lives somewhere abstract โ where does it actually live? Who owns the cables between those dots on the map?
Related sites
Section titled โRelated sitesโ- en.greatfire.org/analyzer
- submarinecablemap.com
- theyrule.net
- criticalwebdesign.github.io/index/#network
๐ HTML Introduction
Section titled โ๐ HTML Introductionโ- Begin HTML modules
- Introduce Hello World!
๐ Homework
- ๐ Module 1.1 Introducing HTML (28โ32)
- Codecademy: HTML 1-1 Introduction to HTML
- Codecademy: HTML 1-2 Document Standards

