1 Content

1.1 Schedule and due dates

• The schedule and due dates will be updated as we progress through the semester (on Canvas).
• Please check back regularly for changes.

1.2 Review

• Python review, for those who want it:
  • ../ComputationalThinking/Content.html

1.3 Topical outline

• Slides will usually be posted before class.
• The outline will be filled in with slides, readings, and assignments as the semester moves forward
• The topic schedule may change slightly as the semester progresses.
• mycode.tar.gz is a zip-like archive file.
  • In Linux/Unix/Mac
    • Just click on it in your file browser of choice, and it should open an “archive manager” which can unzip it
    • At the command line, you can unpack it by executing in the directory with the file: $tar -xf mycode.tar.gz
  • In Windows
    • you can open it with http://7-zip.org/

1.3.1 First day

• Review Canvas
  • Show calendar
  • Show syllabus quiz
• Review syllabus
• Show Zulip
• Show git-classes
  • CI/CD results, example: https://gitlab.com/classroomcode/grade-sh/rust-example
• Meet your in-class neighbors

1.3.2 Introduction

0. Inspiration, introduction
   • Reading and slides:
     • Content/00-Inspiration.html
1. What is the internet?
   • Reading and slides:
     • Content/01-Overview.html (details more reading within.html)
     • Content/Chapter_1.pdf (old slides, above page is more current)
     • Chapter 1 (Kurose book)

1.3.2.1 Introduction Assignments

ra00: VM and SSH server
* Set up two virtual machines, one with an SSH server, SSH from one to the other
* ra00-localhost

1.3.3 Application layer

2. Application layer
   • Reading and slides:
     • Chapter 2 (Kurose book)
     • Content/02-Application.html (and its referenced readings.html)
     • Content/Chapter_2.pdf (old slides, above page is more current)

1.3.3.1 Application assignments

pa01: Python simple HTTP Web server (SP22)
* toy code socket programming in python
* pa01_http

ra01: Real Web server with CGI (and HTTP, TCP Wireshark) (SP22)
* Install and configure a real web server (Apache), and watch it with Wireshark
* ra01_apache

pa02: Python SMTP client (SP19)
* toy code socket programming in python
* pa02_smtp

ra02: Real DNS server (and DNS, UDP Wireshark) (SP19)
* Install and configure a real DNS server (bind) to resolve your Web server’s IP, and watch it with Wireshark
* ra02_name-server

ra03: Real Email server (and SMTP, TCP Wireshark) (SP19)
* Install and configure a real email server of your choosing, and watch it with Wireshark.
* ra03_mail

1.3.4 Transport layer

3. Transport layer
   • Slides and reading:
     • Chapter 3 (Kurose book)
     • Content/03-Transport.html (and its referenced readings.html)
     • Content/Chapter_3.pdf (old slides, above page is more current)

1.3.4.1 Transport assignments

pa03: Python UDP echo (SP22)
* toy code socket programming in python
* pa03_udp-echo
* recorded tour 2022-04-13
* https://vimeo.com/700483879
* https://vimeo.com/700483976

1.3.5 Network layer

1.3.5.1 Network Data plane

4. Network layer - Data plane
   • Slides and reading:
     • Chapter 4 (Kurose book)
     • Content/04-NetworkData.html
     • Content/Chapter_4.pdf (old slides, above page is more current)
     • Content/ip_command_cheatsheet.pdf

1.3.5.2 Network security (more than just network layer)

5. Security
   • Slides and reading:
     • Chapter 8 (Kurose book)
     • Content/05-Security.html

1.3.5.3 Network Control plane

6. Network layer - Control plane
   • Slides and reading:
     • Chapter 5 (Kurose book)
     • Content/06-NetworkControl.html
     • Content/Chapter_5.pdf (has some more detail than in above page)

1.3.5.4 Network assignments

pa04: ICMP ping and traceroute (SP22)
* ICMP ping and ICMP traceroute socket programming in python
* pa04-ICMP

ra04: Network obfuscation and tunneling (SP19)
* Learn how to circumvent both protocol and IP based censorship, host a service anonymously.
* ra04-Network-subversion

pa05: IPTables firewall? (SP22)
* Firewall for single-user machine, NAT, and DHCP Wireshark
* pa05-Firewall-IPTables

ra05: Dedicated real firewall configuration (SP19)
* Install and configure a pfSense/opnsense default gateway for your corporate network
* ra05-Firewall-IPS

1.3.6 Link layer and LAN

7. Link layer and LAN
   • Slides and reading:
     • Chapter 6 (Kurose book)
     • Content/07-DataLink.html
     • Content/Chapter_6.pdf
     • Content/ip_command_cheatsheet.pdf

1.3.6.1 Link assignments

pa05: ARP spoofing (SP19)
* ARP spoofing (link/network layer) with DNS MitM raw socket programming in python
* pa05-MitM-spoof

1.3.7 Wireless and mobile

8. Wireless and mobile
   • Slides and reading:
     • Chapter 7 (Kurose book)
     • Content/08-Wireless.html
     • Content/Chapter_7.pdf

1.3.8 Packet crafting

Content/09-PacketCrafting.html

1.3.9 Summary

A day in the life of a packet
* Slides and reading:
* Content/10-DayInLifeOfPacket.html
* Old version Content/Chapter_6.pdf
* Another example: https://www.homenethowto.com/advanced-topics/traffic-example-the-full-picture/

1.4 Lan and WiFi security

Content/12-LanHacking.html

1.5 Privacy, P2P, Meshnets

Content/11-OverlayMeshNetP2P.html

1.6 Potential future assignments:

• python proxy server (book’s)
• p2p mesh
• ipsec
• ssu
• IPTables basics on Linux VM, NAT, DHCP
• first year’s pa08
  • dd-wrt
• Gitlab server
• honeypot