About this courseSkip About this course
iLabX uses an award-winning methodology to teach you how the Internet works. Starting with the physical cables, you will learn, in six parts:
- what exactly happens when you open a website in your browser, or send a chat message to a friend,
- how to setup a webserver yourself,
- how the ongoing transition between the “old” Internet version and its current successor can be so seamless, and
- key security concepts.
When designing this course, we focused on making it exciting and continuously motivating for you. No matter what kind of learner you are, you will find the right learning experience! Our videos explain everything in detail. If you prefer reading instead, go ahead. You can read the texts instead of or in addition to the videos. We have many practical exercises and of course the virtual laboratory that allows you to configure the real Internet on your computer! Last but not least, we have an engaging story that continues through all parts: Help the iLabees scale their honey sales up, taking their business to the summit of the Internet mountains!
What you'll learnSkip What you'll learn
- A full understanding of how the Internet works in its current versions IPv6 and IPv4
- Basic knowledge about the Layered Architecture of the Internet
- Applied understanding of common Internet Protocols
- Applied understanding of common Internet Applications including DNS, NAT, and firewalls
- Applied understanding of Internet security challenges and mitigation mechanisms
Part 1 - Signals and Cables: Signals, shared medium, physical medium, noise, addressing, topologies, unicast, broadcast, headers, payload, trailer, twisted pair, optical fiber, wireless, non-return to zero (NRZ), Manchester encoding, self-clocking.
Part 2 - Internet Protocol: Internet Protocol (IP), IPv6, IPv4, subnetting, fragmentation, Stateless Address Auto Configuration (SLAAC), Neighbour Discovery Protocol (NDP), Internet Control Message Protocol (ICMP), static routing, forwarding, multicast.
Part 3 - Routing: Dynamic routing, longest prefix matching, Autonomous System (AS), Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Dijkstra, Bellmann-Ford, paths, loops.
Part 4 - Transmission Control Protocol and User Datagram Protocol: Transmission Control Protocol (TCP), User Datagram Protocol (UDP), reliable communication, stateful communication, 3-way handshake, aknowledgements (ACK), piggyback, retransmission, congestion control, flow control.
Part 5 - Domain Name System and Webservers: Domain Name System (DNS), resolver, nameserver, zones, sub-domains, iterative vs. recursive name resolution, A and AAAA records, Hyper Text Transfer Protocol (HTTP), Transport Layer Security (TLS), HTTPS, virtual hosts.
Part 6 - DNS64/ NAT64 and Firewalls: Network Address Translation (NAT), DNS64, NAT64, state, address rewriting, IP 5-tuple, chains, filter, blacklisting, whitelisting, rules, firewall, tables.
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– Former Participant
“I did not know that the Internet has such a brilliant architecture! The knowledge from this course helps me not only with computer networks but also with making large software systems scale.”
– Professional taking part in the course