The Internet and Cloud Computing

The Internet, which started out as a way to send text email messages, is now worldwide converged broadband communications. 

In this module, we’ll understand what exactly an Internet Service Provider does, and how they get packets delivered world-wide.

We’ll review web clients, browsers and apps, web servers, then understand the huge business of web services, cloud computing and data centers.

You'll also learn about all the different types of VPN, and how SD-WAN services are Internet VPNs.

We'll finish with a discussion of Net Neutrality.

Telecom Module 4

Detailed Outline

4 The Internet and Cloud Computing

4.1 A Network to Survive Nuclear War

..... 4.1.1 Connectionless Network Service

..... 4.1.2 Al Gore Invents the Internet

..... 4.1.3 Who Pays for the Internet?

..... 4.1.4 Primitive Beginnings

4.2 The Inter-Net Protocol

..... 4.2.1 Gateways

..... 4.2.2 IP: Common Packet Format and Address Scheme

..... 4.2.3 Connectionless, Unreliable Network Service

..... 4.2.4 TCP and UDP

..... 4.2.5 Routing Protocols

4.3 Internet Service Providers (ISPs)

..... 4.3.1 Internet Access Providers

..... 4.3.2 The Internet is a Business

..... 4.3.3 Interconnect, Peering and Transit

..... 4.3.4 Resellers

4.4 Domain Name System

..... 4.4.1 DNS Servers

..... 4.4.2 Domain Zone Files

..... 4.4.3 SIP Records in DNS

4.5 Web Clients

..... 4.5.1 Browsers

..... 4.5.2 Apps

..... 4.5.3 IoT Apps

4.6 Web Servers

..... 4.6.1 HTTP

..... 4.6.2 HTTPS

..... 4.6.3 HTML

..... 4.6.4 HREFs and URLs

4.7 Web Services and Cloud Computing

..... 4.7.1 Web Server and Back End

..... 4.7.2 Doing it Yourself & Dynamic DNS

..... 4.7.3 Web Hosting

..... 4.7.4 Virtualization and Cloud Computing

..... 4.7.5 Amazon AWS, Microsoft Azure

4.8 Data Centers

..... 4.8.1 Commercial Multi-Tenant Data Centers

..... 4.8.2 Collocation

..... 4.8.3 Heat and Electricity

..... 4.8.4 Connections to Internet Exchanges

4.9 Internet VPNs

..... 4.9.1 Tunnels Implemented with Encryption

..... 4.9.2 IP VPN vsMPLS VPN

..... 4.9.3 Country-Spoofing VPNs

..... 4.9.4 Anonymizer VPNs

4.10 SD-WAN

..... 4.10.1 Pairwise Internet VPN Tunnels

..... 4.10.2 No Guarantees

..... 4.10.3 Bandwidth Management

..... 4.10.4 Implementation and Standards

..... 4.10.5 Service Bundling

4.11 Net Neutrality

..... 4.11.1 No Corporate or Government Interference

..... 4.11.2 Relayed Without Regard for Content, Senders, or Receivers

..... 4.11.3 Many Different Meanings

..... 4.11.4 Criminal Activities

..... 4.11.5 Transparency

..... 4.11.6 Devil in the Details

..... 4.11.7 No Meters

..... 4.11.8 Zero-Rating