your exercise Order of Presentations Team Topic 212 Distributed - - PowerPoint PPT Presentation

you set the focus

The iLab Experience

a blended learning hands-on course concept

Create Your Own Lab

July 5, 2016

your exercise

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

DISTRIBUTED FILE SYSTEMS

Lorenz Stadler, Wangyang Ye – Team 212

1

Recap Lab’s Learning Goals

2

The Following Learning Goals are Covered in the Lecture PreLab Lab Understand how a distributed file system works X X Learn about different distributed file systems X Setup a DFS with multiple servers and clients X Understand the advantages, eg. reliability X X X Administrate the DFS (add nodes, see how it reacts to a failure of one file server) X

Course of our Lab

• Install XtreemFS (the distributed file system software)
• Setup a storage server
• Connect with clients
• Add more storage servers and experiment with replication

3

Our Review Experience I

• As Reviewed Team

– Highlights:

• Watching team members discussing and finally get the solution for

the question

– Lowlights:

• They had a problem because of a wrong/unclear instruction

4

Highlights of our Lab

• What did your review team like most?

– good balance between information given in the prelab and freerun searches (but still guided) – no extra wiring, thus no additional failures – good written bash setup-script which can be easily understood

5

Points to Improve: Lecture

1. Add a slide about the challenges for distributed file systems. 2. Give more details about the relevant characteristics of the different DFS solutions 3. Improve the graphic about the client/server architecture 4. Start with a real-world example and tell a story about the motivation to use distributed file systems

6

Points to Improve: PreLab

1. Improve multiple choices question 2. Add information about naming conventions of how the volumes are addressed 3. Give sources for images (we forgot that on one image) 4. Give examples about how to use the tools needed in the lab

7

Points to Improve: Lab

1. Improve some vague questions

– Some instructions were not clear

2. Add an interesting story

– Play a video, then kill the server and see how the video will be delivered from a replication on another server

3. Use pre tag for codes and commands that they have to copy&paste

8

Our Review Experience II

• As Reviewer of Felix Hartmond, Sven Hertle, Team 204 -

DNS tunneling – Which highlights did you experience?

• Interesting Topic
• Well written and with a nice story (Break the hotel firewall)
• Some interesting and challenging tasks and questions

– Which lowlights did you experience?

• One thing did not work
• It was a bit too long (2.5 hours – but maybe it was our fault ;-) )

9

you set the focus

The iLab Experience

a blended learning hands-on course concept

Create Your Own Lab

July 5, 2016

your exercise

1 2 3 4 5 6 7 8 9 10 11 12 13 BGP IPv6 2-3 mini labs SEC Advanced WL 14 Your Exercise S2O 1 S2O 2

Topic Presentation and Voting DIY1- Your Own Smart Device DIY2- Your Own Smart Space Kick Off, Mini Labs, IPv6 - part I Topic Presentation and Voting Security Fundamentals Advanced Wireless Playground Your 1st Lecture Review Presentation Final Presentation, Wrap-Up

12.4. 19.4. 26.4. 3.5. 10.5. 18.5. 24.5. 31.5. 7.6. (14.6.) 21.6. (28.6.) 5.7. 12.7.

IPv6 - part II, Mini Lab Lectures BGP World-Wide-Web Security Holes Your Exercise Mad Brainstorming Didactics and Techniques summer term 2016

create YOUR own LAB

reversed classroom

your exercise

1 2 3 4 5 6 7 8 9 10 11 12 13 BGP IPv6 2-3 mini labs SEC Advanced WL 14 Your Exercise S2O 1 S2O 2

Topic Voting Topic Voting Your 1st Lecture Review Presentation Final Presentation, Wrap-Up

18.5. 24.5. 7.6. (14.6.) 21.6. (28.6.) 5.7. 12.7.

Didactics and Techniques summer term 2016

*

Somehow “Stable” Internal Tests Student Run

Feedback Revision

~2h Introductory Lecture

didactic concept | authoring tutorial | topic selection | assignment review teams

~30-35h Team Prepares Exercise

slides for talk | prelab | lab | slides | tutor support

~2h First Lecture Presentation

presentation | feedback | quality alignment

~20-25h Review

review another team

~2h Final Presentation

how is it now | what did you change/ learn | your take home?

~2h Received Feedback Pres.

presentation | feedback | quality alignment

~10-12h Revising new lab

updating learning material

• Week -4: Concept & Topic Madness
• Prepare your 2x3 min talks
• Week -3+-2:Topic

Voting

• Plan the structure and content of your lab, prelab, and lecture.
• Week 1+2: Didactics & Techniques & Preparation
• Lecture Preparation (most relevant concepts?)
• Prelab Preparation (detailing the lecture content + tools + more)
• Practical Part Lab Preparation (no cooking recipe)
• Week 3:

Your lecture

• Finalise and improve your content.
• Week 4: Review and Get Reviewed
• Review other team
• Get reviewed by other team
• Week 5: Present the lab and the feedback you got and what to do next
• Improve by materialising the feedback
• Week 6: Final presentation (Lecture with lab outlook, highlights)

peer grading

• 2 slide decks for your two

topic presentations (each talks one topic!)

• Slide deck lecture (both talk!)
• Ready PreLab, Lab
• Review report
• Slide on review feedback &

planned improvements

• Final lecture slides
• Final PreLab, Lab, Peer Grade

Expected Artefacts

your exercise

Marc-Oliver Pahl 2016

7.6. (14.6.) 21.6. (28.6.) 5.7. 12.7. 18.5. 10.5. 24.5.

X X X X X

The Peer Review

You will grade your reviewed team.

http://www.utahcompose.com/sites/utahwrite/files/peer%20review%20kids.jpg

“I have never in my life learned anything from any man who agreed with me.”

Dudley Field Malone

(3 June 1882 – 5 October 1950) was an American attorney, politician, liberal activist, and actor.

Questions to ask

• From doing the other team’s exercise:
• What can you improve in your material?
• What can you propose the others for improve?

Please Make Notes Again…

PreLab Lab Other Things

you set the focus

The iLab Experience

a blended learning hands-on course concept

Your Review Report

7(+1) Minutes

You make it interesting…

Flickr:nist6dh

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

iLab2 – Your own exercise OpenSSH: More than a remote shell

Feedback presentation Stefan Huber and Alexander Kurtz (Team 209) July 05, 2016

Our lab

1 Introduction

[0.0 credits, 05 minutes]

2 Setup

[0.0 credits, 05 minutes]

3 Configuring the server

[4.0 credits, 20 minutes]

4 Configuring the client

[1.0 credits, 05 minutes]

5 First contact

[3.0 credits, 10 minutes]

6 Making things more convenient

[2.0 credits, 05 minutes]

7 Making things secure™

[2.5 credits, 10 minutes]

8 More than a remote shell. . . 1 Port forwarding

[5.0 credits, 15 minutes]

2 SOCKS proxy

[2.5 credits, 15 minutes]

3 Secure™ file server

[4.0 credits, 15 minutes]

4 VPN

[4.0 credits, 15 minutes]

Total: [28.0 credits, 120 minutes]

Impressions of being reviewed

It was really hard to not take people by the hand and tell them what to do. Different teams prefer different tools (e.g. man vs. Google). The reviewing team needed much more time than expected.

What to improve?

Clearly state when to execute something as root and when as a regular user! Remove all questions that are not directly related to the topic! Check for trivial mistakes, like mixed up PC names / numbers! Avoid questions with multiple parts, only the first part will get answered! Always suggest the tools to use (e.g. ifconfig vs. ip) to avoid unexpected problems! Specify things in detail to avoid confusion. Not everything is obvious to everyone! Explicitly tell people to bring the interfaces up!

Reviewing “Firewall Operating Systems - VyOs and IPFire”

The labs given to us by the tutors are very well structured. . . . . . and repeatedly pointed us to things that we should concentrate on. We needed much longer for the lab than the reviewed team had expected. Sometimes we really needed hints from the reviewed team.

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

Firewall Operating Systems: VyOs and IPFire – Lab Review by Team 209

Florian Barta, Alexander Mildner - Team 207

1

Review Results - PreLab

Good Improvements + everything important covered

• too short

+ VyOS: commands of VyOS asked – so both team partners had to read the manual

• add intorduction to the tool 'bridge-utils'

+ interesting

• some minor mistakes in a question

+ good multiple choice questions + good structured

2

Review Results - Lab

Good Improvements + nice Story, could be a bit more integrated

• little more hand holding at some points (more

VyOS conf examples) + good use of islet (5 out of 6 PCs), both team partners had something to do

• Split Lab into smaller parts (some pages are

way too full) + realistic setup

• Both partners have something to do, but doe not

interact a lot with each other + interesting, challenging questions

• abstarct hasn't been filled

+ good overview of the Topic, but not too complex

3

Review Results - Improvements

4

• Shorten the Lab by providing some more configuration
• Structuring the Lab (use Collections of Virt. Pages)
• Adding some questions in the Lab to make the team members

communicate a bit more

• Add questions/tool description to the PreLab
• Of Course: Fixing all the other minor issues

Thanks Team 209 for this great and helpful feedback ! :)

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

Tor vs Great Firewall of China

Jakob Traxler, Albert Stark

1

Recap Lab’s Learning Goals

2

The Following Learning Goals are Covered in the Lectu re PreLa b Lab Understand TOR X X Con$gure TOR on a PC (X) Understand the network properties X X X Build a censorship infrastructure (X) X Break free! X (X)

Course of Your Lab

• We build the GFC

3

Your Review Experience I

• As Reviewed T

eam

– T echnical di4culties with our setup

• Viewing the questions from an outside look
• Bug in the setup script

4

Highlights of Your Lab

• Very interesting T
• pic
• T

arget-oriented PreLab with good background

• Real-Life example with programming

task

5

Things you Plan to Improve

• Giving a more technical orientated

insight

• Further guide the active probing

implementation

– Split the imeplentation up in multiple smaller parts – Give code examples of what to use

6

This information is for the next pages... This information is for the next pages...

Points to Improve: Lecture

• 1. More technical insight into our Lab
• 2. Further explanaition what we expect from you in

the Lab

• 3. Insure readability

7

Points to Improve: PreLab

8

• 1. More technical insight into our Lab
• 2. Further explanaition what we expect from you in

the Lab

• 3. Insure readability

Points to Improve: Lab

• 1. Split the imeplentation up in multiple smaller

parts, wich are then assembled

• 2. Give code examples of what to use
• 3. Link to the prelab where neccesary
• 4. Improve reliablity of setup

9

Your Review Experience II

As Reviewer of Wang Yang Ye, Lorenz Stadler Distributed File Systems – Nice and clean setup

• Using the DFS in a real life setup
• A bit uncertainty how to correctly answer the

questions and what approach to choose

10

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

iLab2 - Your own exercise Feedback for DNS tunneling

Sven Hertle, Felix Hartmond, 204

Course Of Our Lab

PreLab and Lab

Highlights Of Our Lab

Team 212 liked most Interesting prelab with pictures to visualize the content Topic and story Interaction between team partners

Things We Want To Improve 1

Lecture Make teaser image better readable

Things We Want To Improve 2

PreLab Link RFCs and Wikipedia Shortly explain connection tracking in iptables Fix typos

Things We Want To Improve 3

Lab Make some hints more visible Give a better template for the iptables ruleset Fix last iptables rule so that specific DNS resource record type is really blocked

you set the focus

The iLab Experience

a blended learning hands-on course concept

“Break”

Lab Time

Orchestration Distributed Smart 2pace System

DIY Hardware

DIY Hardware

DIY Software Arduino DS2OS Smart Device Smart Space App time 2016

More Feedback from YOU?

Orchestration Distributed Smart 2pace System

host

5

DIY Software

DIY Hardware

DIY Software

Arduino DS2OS Smart Device Smart Space App time 2016

More Feedback from YOU?

Continuous Feedback Sheet for VSL Usability Evaluation

You make it interesting…

Flickr:nist6dh

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

iLab2 - Your own exercise Feedback for Routing Policies & Traffic Shaping and SIP – call me maybe

Team 201: Moritz Sichert, Lars W¨ ustrich

As Reviewed Team - Highlights

The good It was nice to see how others approached our tasks. Just by watching we noticed things that we could improve. The bad Not being able to give hints when the reviewing team took a wrong path.

Learning Goals Reminder

The following learning goals are covered in the Lecture PreLab Lab Understand what Routing Policies are x x Understand why Traffic Shaping is useful x x Principles of the Linux tool tc x x x Set up Routing Policies x Set up Traffic Shaping x

Course Of Our Lab

Our Lab

Highlights Of Our Lab

Team 204 liked most The setup description and script The story The Lab and the topic in general

Things We Want To Improve 1

Lecture Longer lecture (if we had more time)

Things We Want To Improve 2

PreLab Clarify routing tables, entries, and rules More questions for the first part Improve images

Things We Want To Improve 3

Lab Improve image of setup More question about the concepts Eliminate remaining uncertainties

Reviewing Team 206 - Highlights

The good It was an interesting and refreshing topic It was fun to play around with the VoIP software The bad Having to answer questions about RFCs We missed the story

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

SIP – call me maybe

team 206 (fk, hs)

Recap Lab’s Learning Goals

Lecture

even more motivation SIP – a short introduction

PreLab

recap lecture content RTFM

Lab

use the headsets build telephony infrastructure wiretapping

Course of the Lab

. . . loading wepage, please wait . . .

Review Experience I

highlights when being reviewed

positive: vibes negative: not everything worked as planed

highlights mentioned by reviewer: “. . . setup was easy . . . ”

Plan to Improve

language (remove typos,. . . ) be more precise

PreLab: e.g. which part of the linked RFC is relevant Lab: clearer instructions (where, what without how)

adapt focus:

PreLab: reduce parts not relevant for the Lab Lab: simplify the asterisk section (where to change things)

Review Experience II

as a reviewer:

positive: good ideas for the Lab negative: not enough time to implement them

This is the title.

Figure 1: Did you read the title?

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

TCP/IP Vulnerabilites

Sigl, Reitmayer

1

Our lab

2

Review Experience I

• As Reviewed Team

– Highlights:

• observing people think about the problems you

constructed – Other Experience:

• feeling of being a distrustful supervisor
• urge to help

3

Highlights of the Lab

• background story
• high level of freedom (setup, tools)
• new/ alternative tools (e.g. tcpdump instead
• f wireshark)

4

Points to Improve: Lecture

1. make the lecture more interesting (pictures, more background information) 2. annihilate some mistakes and inaccuracies

5

Points to Improve: PreLab

1. improve layout issues 2. add lecture slides 3. include some important topics 4. add additional sources

6

Points to Improve: Lab

1. presicer questions 2. add lecture slides 3. rearranging some of the questions between the sections

7

Review Experience II

• Huber/Kurtz OpenSSH: More than a remote shell

Experience:

• direct, non-verbal reaction
• goal: teaching OpenSSH
• helpful and immediate handling of minor mistakes

8

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

MULTIPATH-TCP

Oliver Scheit, Jörg Wiedemann

1

MPTCP Lab Walkthrough

2

Our Review Experience

• Setup was a bit surprising

– Forgot to mention interfaces in the picture (whoops)! – Took a lot longer than we initially thought it would

• MPTCP part

– Team was able to do all exercises without too much trouble – Everything worked more or less as planned – Need to revise some questions, as they were answered differently than we expected

3

Highlights of the review

• What did team202 like the most?

– Watching a movie without buffering thanks to MPTCP – Seeing that MPTCP is easy to setup

4

What do we need to improve ?

• Create better pictures!

– More information included in the pictures intself

• Better example solutions

– “stating the obvious”

5

Points to Improve: PreLab

1. Questions not always relevant to the text above 2. More information wished 3. Felt unfinished 4. Add better picture captions

6

Points to Improve: Lab

1. Use static IPs in the setup, for better memorability 2. Add interfaces to the setup overview 3. Reduce the setup time with deployment script 4. General bug fixes (unclear questions, more guidelines) 5. VM performance sub-optimal

7

Order of Presentations

Team Topic 212 Distributed file systems 209 OpenSSH: More than a remote shell 207 Firewall Operating Systems: VyOs and IPFire 208 Tor vs GFW of China 204 DNS-tunneling 201 Routing Policies & Traffic Shaping 206 SIP - call me maybe 210 TCP/IP Vulnerabilities 203 Multipath TCP 202 The Quest of The Mailserver - The One Server to Spam Them All!

create your own exercise

THE QUEST OF THE MAIL SERVER

Sebastian Vogl & Patrick Werneck - 202

1

Course of Your Lab

Lab Overview

2

Points to Improve

1. PreLab: Very long. (Too long?) 2. Missed explanation of topic (MX record) 3. The lab depends too much on the PreLab. 4. Explain more what should have happened 5. Some problems with deploy script

3

Reviewed Experience

• As Reviewed Team

– Very strange feeling to not comment. – Work felt appreciated. – Interesting/Funny reactions to lab content.

4

Reviewing Experience

• As Reviewer of Oliver Scheit, Jörg Wiedemann: Multipath

TCP – The movie/slideshow in the VM was cool (& to see how MPTCP works!) – The setup took too long! – Confusing: VM or “real” host

5

you set the focus

The iLab Experience

a blended learning hands-on course concept

Collection of Your Points

Each:1) Queue 2) Write your new TOP 1-2 feedback points for each category on the board. 3) If your point is already there, underline it AND if available write an important new aspect.

TODO: your next steps

• Improve your material using the insights from today
• Lecture, PreLab, Lab
• Make it ready for next semester’s students!
• Give the improved lecture next time
• Hand in the peer grading (including the final version of the reviewed

exercise)

1 week time

• Week -4: Concept & Topic Madness
• Prepare your 2x3 min talks
• Week -3+-2:Topic

Voting

• Plan the structure and content of your lab, prelab, and lecture.
• Week 1+2: Didactics & Techniques & Preparation
• Lecture Preparation (most relevant concepts?)
• Prelab Preparation (detailing the lecture content + tools + more)
• Practical Part Lab Preparation (no cooking recipe)
• Week 3:

Your lecture

• Finalise and improve your content.
• Week 4: Review and Get Reviewed
• Review other team
• Get reviewed by other team
• Week 5: Present the lab and the feedback you got and what to do next
• Improve by materialising the feedback
• Week 6: Final presentation (Lecture with lab outlook, highlights)

peer grading

• 2 slide decks for your two

topic presentations (each talks one topic!)

• Slide deck lecture (both talk!)
• Ready PreLab, Lab
• Review report
• Slide on review feedback &

planned improvements

• Final lecture slides
• Final PreLab, Lab, Peer Grade

Expected Artefacts

your exercise

Marc-Oliver Pahl 2016

7.6. (14.6.) 21.6. (28.6.) 5.7. 12.7. 18.5. 10.5. 24.5.

X X X X X