John tackles how the internet works - the most requested topic as voted by Pragmatic listeners in this, the penultimate episode of the show.With Vic Hudson and John Chidgey.Stickers Direct Links: Pragmatic Sticker: Small Pragmatic Sticker: Large TechDistortion Sticker: Small TechDistortion Sticker: Large Previous Related Episodes: Pragmatic Episode 16: One Mans Hopes And Dreams Of An RF Bubble Pragmatic Episode 27: Military Software Pragmatic Episode 55: Cautiously Concerned Historical Overviews: History of the Internet A Brief History of the Internet Token Rings: Token Rings How Token Ring Works OSI and TCP/IP Stacks: TCP/IP Protocol Fundamentals OSI model The Physical Layer: Ethernet Physical Layer Ethernet Over Twisted Pair Exponential Backoff Twisted Pair Addressing: MAC address What are MAC addresses and how are they used? Guidelines for Use Organizationally Unique Identifier and Company ID IEEE Registration Authority IPv6: An Unreachable Wall? How ARP Works Subnetwork Intranets and Firewalls: Dynamic Host Configuration Protocol Private Network Address Allocation for Private Internets Private network Network Address Translation I Have a Router, Do I Need a Firewall? About the OS X Application Firewall Firewalls Backbones and ISP Backhaul Costs: Nortel OC-192 10-GBIT/S Transport Platform Packet over SONET/SDH Synchronous Optical Networking Internet Transit Prices - Historical and Projections Internet Cost Structures and Interconnection Agreements Domains: Domain Name System Global DNS Propagation Checker List of DNS Record Types Country Code Top-level Domain Using the Google Public DNS World Wide Web: Hypertext Transfer Protocol HTTP/2 Web Servers Popularity by Ranking Related Links: Right-to-left McMansion Octet (computing) Port (computer networking) Support Pragmatic on PatreonEpisode sponsors:Lynda.com: Lynda.com is the easy and affordable way to learn where you can instantly stream thousands of courses created by experts in their fields of business, software, web development, graphic design and lots more. Visit the URL below to get a free 10-day trial. If you’ve ever wanted to learn something new, what are you waiting for? Visit lynda.com/pragmaticto learn more.Shopi: Shopi is a collaborative shopping list app that’s simple and easy to use with great features like pocket-lock, smart ordering and real-time collaborative updating. A shopping list is a special To Do list and Shopi addresses that use case very well. It’s ad-free for the first month so why not check it out. Visit sapient-pair.com/pragmaticto learn more.