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Overviewer Documentation Release 0.13
Overviewer Documentation Release 0.13 The Overviewer Team Jul 28, 2021 Contents 1 Introduction 3 2 Documentation Contents 5 2.1 Installing.................................................5 2.2 Building the Overviewer from Source..................................6 2.3 Running the Overviewer......................................... 10 2.4 The Configuration File.......................................... 14 2.5 Signs and Markers............................................ 31 2.6 Windows Newbie Guide......................................... 36 2.7 Frequently Asked Questions....................................... 44 2.8 Contributing............................................... 48 2.9 Design Documentation.......................................... 52 3 Features 75 3.1 What The Overviewer is not....................................... 75 4 Requirements 77 5 Getting Started 79 6 Help 81 7 Indices and tables 83 Index 85 i ii Overviewer Documentation, Release 0.13 See also the Github Homepage and the Updates Blog, and follow us on our Twitter account. Contents 1 Overviewer Documentation, Release 0.13 2 Contents CHAPTER 1 Introduction The Minecraft Overviewer is a command-line tool for rendering high-resolution maps of Minecraft Java Edition worlds. It generates a set of static html and image files and uses Leaflet to display a nice interactive map. The Overviewer has been in active development for several years and has many features, including day and night lighting, cave rendering, mineral overlays, and many plugins for even more features! It is written mostly in Python with critical sections in C as an extension module. For a simple example of what your renders will look like, head over to The “Exmaple” Map. For more user-contributed examples, see The Example Wiki Page. 3 Overviewer Documentation, Release 0.13 4 Chapter 1. Introduction CHAPTER 2 Documentation Contents 2.1 Installing This page is for installing the pre-compiled binary versions of the Overviewer. -
Fill Your Boots: Enhanced Embedded Bootloader Exploits Via Fault Injection and Binary Analysis
IACR Transactions on Cryptographic Hardware and Embedded Systems ISSN 2569-2925, Vol. 2021, No. 1, pp. 56–81. DOI:10.46586/tches.v2021.i1.56-81 Fill your Boots: Enhanced Embedded Bootloader Exploits via Fault Injection and Binary Analysis Jan Van den Herrewegen1, David Oswald1, Flavio D. Garcia1 and Qais Temeiza2 1 School of Computer Science, University of Birmingham, UK, {jxv572,d.f.oswald,f.garcia}@cs.bham.ac.uk 2 Independent Researcher, [email protected] Abstract. The bootloader of an embedded microcontroller is responsible for guarding the device’s internal (flash) memory, enforcing read/write protection mechanisms. Fault injection techniques such as voltage or clock glitching have been proven successful in bypassing such protection for specific microcontrollers, but this often requires expensive equipment and/or exhaustive search of the fault parameters. When multiple glitches are required (e.g., when countermeasures are in place) this search becomes of exponential complexity and thus infeasible. Another challenge which makes embedded bootloaders notoriously hard to analyse is their lack of debugging capabilities. This paper proposes a grey-box approach that leverages binary analysis and advanced software exploitation techniques combined with voltage glitching to develop a powerful attack methodology against embedded bootloaders. We showcase our techniques with three real-world microcontrollers as case studies: 1) we combine static and on-chip dynamic analysis to enable a Return-Oriented Programming exploit on the bootloader of the NXP LPC microcontrollers; 2) we leverage on-chip dynamic analysis on the bootloader of the popular STM8 microcontrollers to constrain the glitch parameter search, achieving the first fully-documented multi-glitch attack on a real-world target; 3) we apply symbolic execution to precisely aim voltage glitches at target instructions based on the execution path in the bootloader of the Renesas 78K0 automotive microcontroller. -
Playing, Mapping, and Power a Critical Analysis of Using Minecraft in Spatial Design • Hamza Bashandy
Playing, Mapping, and Power A Critical Analysis of Using Minecraft in Spatial Design • Hamza Bashandy Investigating the potential of video games as an aid to community mapping and participatory architectural design, the author discusses the use of the sandbox game Minecraft by the Block by Block Foundation in collaboration with Mojang Studios, Microsoft, and UN-Habitat for three projects—Model Street (Dandora Phase 2, in Nairobi, Kenya), Mind the Step (Jardim Naka- mura, in São Paulo, Brazil) and Former Marketplace (in Pristina, Kosovo). The author offers different perspectives or “lens” from which to view the projects, including as an architect (which he calls a spatial lens) and as a community member (which he dubs a player lens). Favoring agency over participant choices, he claims, the institutional forces at work can prevent true access to space making by either the foundation or the game, each of which suffers from accessibility problems for both players and the communi- ties. He argues for a need to look more closely into the politics of the Block by Block Foundation and Minecraft and seeks to make readers explicitly aware of the systemic mechanisms of exclusion. Key words: democracy and public space; marginalized communities; Minecraft; participatory design; power hierarchies; video games People around the world use digital media to aid civic participation and promote social justice. Many governmental and community organizations have changed their mission and functions as they adopt new digital tools and practices (Gordon and Mihailidis 2016). Similarly, digital games have been seen as a very potent vehicle adopted by many large-scale institutions such as the United Nations Human Settlement Program (UN-Habitat). -
Free Remote Agile E-Book
Table of Contents 1. Welcome to a new kind of Agile 2. Establishing Ground Rules 3. Stop Dreading Meetings: The Webcam Revolution 4. The Virtual Office Setup 5. Case Study: Stack Exchange’s Hybrid Team 6. Building and Nurturing Your Remote Team 7. Best Email Practices 8. Case Study: RES Software’s Three Remote Offices 9. Agile Can Thrive With Remote Teams 10. Let Us Know How We Can Help! Welcome to a new kind of Agile The current charter of most distributed company leaders is to create an online workspace (...) supported by a set of tools and self- organizing behaviors.(...)With a strong vision, clear articulation of priorities, and strongly nurturing culture as part of your company DNA, you have a clear path to success on your distributed Agile team." - Amanda Ross, Director of Marketing & Agile Practices at Sococo It’s been called a framework, a philosophy, a methodology - research Agile and you’ll find that so many people define it with so many different words that you'd be forgiven for thinking it’s some sort of mystical practice involving tarot cards and looking at the stars. But it’s actually a major shift in the way people work, and it’s been happening for over a decade - whatever you choose to call it, if you are in the IT business, Agile is likely part of the way you work. If it’s not, the time to start is now. Companies and teams worldwide have used it to deliver better products in record time with maximum efficiency and minimum burnout. -
Glitch Studies Manifesto
[email protected]. Amsterdam/Cologne, 2009/2010 http://rosa-menkman.blogspot.com The dominant, continuing search for a noiseless channel has been, and will always be no more than a regrettable, ill-fated dogma. Even though the constant search for complete transparency brings newer, ‘better’ media, every one of these new and improved techniques will always have their own fingerprints of imperfection. While most people experience these fingerprints as negative (and sometimes even as accidents) I emphasize the positive consequences of these imperfections by showing the new opportunities they facilitate. In the beginning there was only noise. Then the artist moved from the grain of celluloid to the magnetic distortion and scanning lines of the cathode ray tube. he wandered the planes of phosphor burn-in, rubbed away dead pixels and now makes performance art based on the cracking of LCD screens. The elitist discourse of the upgrade is a dogma widely pursued by the naive victims of a persistent upgrade culture. The consumer only has to dial #1-800 to stay on top of the technological curve, the waves of both euphoria and disappointment. It has become normal that in the future the consumer will pay less for a device that can do more. The user has to realize that improving is nothing more than a proprietary protocol, a deluded consumer myth about progression towards a holy grail of perfection. Dispute the operating templates of creative practice by fighting genres and expectations! I feel stuck in the membranes of knowledge, governed by social conventions and acceptances. As an artist I strive to reposition these membranes; I do not feel locked into one medium or between contradictions like real vs. -
A Practical Introduction to Python Programming
A Practical Introduction to Python Programming Brian Heinold Department of Mathematics and Computer Science Mount St. Mary’s University ii ©2012 Brian Heinold Licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported Li- cense Contents I Basics1 1 Getting Started 3 1.1 Installing Python..............................................3 1.2 IDLE......................................................3 1.3 A first program...............................................4 1.4 Typing things in...............................................5 1.5 Getting input.................................................6 1.6 Printing....................................................6 1.7 Variables...................................................7 1.8 Exercises...................................................9 2 For loops 11 2.1 Examples................................................... 11 2.2 The loop variable.............................................. 13 2.3 The range function............................................ 13 2.4 A Trickier Example............................................. 14 2.5 Exercises................................................... 15 3 Numbers 19 3.1 Integers and Decimal Numbers.................................... 19 3.2 Math Operators............................................... 19 3.3 Order of operations............................................ 21 3.4 Random numbers............................................. 21 3.5 Math functions............................................... 21 3.6 Getting -
LIGO Detector Characterization Group Maintained by Josh Smith DCC# LIGO-G1500642 This Document: A
Glitch classes seen in aLIGO so far (through end of O1) LIGO Detector Characterization Group Maintained by Josh Smith DCC# LIGO-G1500642 This document: A. lists the major glitch classes that have been seen in aLIGO so far, B. shows a few representative images, C.says which detectors have which glitches, and D.provides links to alog pages and wikis for more information 2 Table of Contents 1. LHO/LLO Blip glitches [NF] 9. Blue Mountains [NF] 2. LLO RF Beats [NF] 10. LHO End-Y 60Hz glitches [F] 3. LLO Koi fish (working title) [NF] 11. Saturating tidal control [F] 4. LHO end-Y scattered light [NF] 12.OMC L Scattered light [F] 5. LLO SRM scattered light [NF] 13.Hartmann Wavefront sensor malfunction [F] 6. LHO paired doves [NF] 14. LHO PRCL/SRCL glitches [F] 7. DAC glitches [PF] 15. LHO End-Y 50Hz air compressor 8. n*505Hz glitches [PF] glitches [F] [NF] = not fixed, [PF]= partially fixed, [F]=fixed 3 1. Blip glitches H1 Examples: https://ldas-jobs.ligo-wa.caltech.edu/~areeda/blip-omega.tar 4 Blip glitches documentation • Brief description: Class of common glitches in both detectors, with no known cause currently. The only weak lead is that saturated hardware injections cause glitches that look very similar, so perhaps these are saturations in the actuation chain that happen under normal conditions. • Relevant alogs: • LLO: • LHO: saturated injections look like blips? • Other documentation: Some blip times and scans link 5 2. RF Beats Examples: https://ldas-jobs.ligo.caltech.edu/~areeda/josh-20150828.tgz 6 RF Beats documentation • Brief description: These are beats of two or more RF oscillators that sweep quickly through the audio range. -
Glitch.Com What Is Glitch?
glitch.com What is Glitch? “Everybody has good ideas of things we want to make on the Internet. But honestly, it’s gotten too hard. Gomix fixes that. If you’re not a professional developer, the barriers are way too high. There are pretty good tools if you just went to make a marketing website or a blog, but if your idea is an app or a bot or something more interactive, you’re out of luck. It ought to be as easy to make an app as it is to edit a blog post or to change a formula in a spreadsheet.” Anil Dash, December 6, 2016 https://medium.com/gomix/introducing-gomix-aec205c421cb#.fqutfey03 https://glitch.com/about/ Glitch handles the mess • While you work with Glitch, it will seamlessly upgrade your servers and cloud infrastructure in the background. • There’s no deployment or server provisioning because it all happens automatically. Backed by a real company Glitch • Glitch is made by Fog Creek, one of the most influential small tech companies in the world. • They made Trello, FogBugz and co-created Stack Overflow. Why did they make it In some ways, Glitch is a throwback to an older era of software or the internet, when there were simpler ways to get started making cool stuff. For people who were around at that time, they'll understand Glitch easily: It brings “View Source” back. The ability to just look at the code behind something, and tweak it, and make your own thing, was essential to making the Internet fun, and weird, and diverse, in its early days. -
Coding with Kids
2018 Summer Camps Little Coders Scratch Game Development I Created specifcally for kids 5-7, this camp Start your coding journey by creating your develops computational thinking skills and own game! Campers will take the frst step fosters creativity in a fun environment! We on the Coder’s Ladder, learning computer use a blend of connected and “unplugged” programming fundamentals and design- activities designed to keep young campers ing and coding their own frst computer engaged. Kids will create their own interac- programs. Projects will include interactive Ages 5-7 tive story or computer game! Ages 8-11 stories and computer games! 3D Game Development Scratch Game Development II Take your game design into the third Ready to take your game development skills dimension. Campers will learn the ins to the next level? Campers will build on and outs of 3D games with scene design, their current coding skills and learn how to camera placement, asset creation, sprite create more challenging projects with fun scripting, and more as they create 3D features, such as AI (artifcial intelligence), games playable in any web browser! game physics, or multiplayer functionality! Ages 13-18 Ages 8-13 Minecraft Modding (9-12yr) Minecraft Modding - Java (12-18yr) Building mods is a fun way for Minecraft Build advanced Minecraft mods with Java players to learn and practice programming! programming. Campers will learn the fun- Each camper will have access to their own damentals of Java as they use it to custom- Minecraft server where they can customize ize the world of Minecraft. Learn how to their Minecraft experience with drag & drop give items special powers, create new game code, landscapes, texture packs, and more! modes, and modify the layout of your world. -
It's Time to Get Serious About Developer Relations
03/04/2018 It’s time to get serious about Developer Relations – Glitch – Medium Images haven’t loaded yet. Please exit printing, wait for images to load, and try to Anil Dash Follow CEO of Fog Creek Software, makers pofri @nt Gagliatcinh. & Manuscript. Trying to make tech more ethical & humane. (Also an advisor to Medium.) More: http://anildash.com/ Sep 27, 2017 · 4 min read It’s time to get serious about Developer Relations Developer relations is a vital part of modern business strategy, but so much of the industry still treats it like an afterthought. Glitch for Platforms is here to help everyone who does Dev Rel. If you do developer relations or evangelism, you’re probably great at your job. You’re talking to coders, getting out in the community, building relationships. But does the rest of your organization value that work as much as they should? A lot of smart people are thinking it’s time for Dev Rel to grow up, and we agree. All of us who give a damn about developer relations need to get a lot louder and more aggressive about the business value of what we do. And that means tackling the ROI question head-on: Can you really show that your developer outreach is working? Jonathan Gottfried @jonmarkgo Replying to @bwest it feels counterintuitive to spend time proving ROI to execs rather than generating value for developers but Jonathan Gottfried, Co-Founder of Major League Hacking Dev Rel’s Burden of Proof For a lot of Dev Rel people, really proving a return on investment is, well, a pain in the ass. -
Making Web Apps with Node - Paths Into Programming - Top Tips for New Coders V1.0 Glitch Is the Friendly Community Where You'll Build the App of Your Dreams
In this issue: CC BY-NC-SA 4.0 Print & Share! - Making Web Apps with Node - Paths into Programming - Top Tips for New Coders v1.0 Glitch is the friendly community where you'll build the app of your dreams. With working example apps to remix, a code editor to modify them, instant hosting and deployment - anybody can build a web app on Glitch, for free. Learn more at glitch.com Credits Illustration: Good Boy Graphics Layout: Gareth Wilson Content: Jenn Schiffer, Gareth Wilson Edited by: Maurice Cherry Guest Contributors: Cassidy Williams, Saron Yitbarek, Steve Klabnik Contents p2. How Web Servers Work Paths into Programming: p4. Cassidy Williams p10. Saron Yitbarek p14. Steve Klabnik p6. Anatomy of a Web App p9. Expert Advice for New Developers p12. What is npm Exactly? p19. Top Tips for New Coders p16. Understanding Async in Node 1 How Web Servers Work What happens when you enter a URL into your browser? It turns out, a whole bunch of things happen. But one of them is you sending a request to a server (which is just a computer) somewhere, asking it to give you the app or site that relates to that URL. You can think of a computer server as being a bit like a server in a restaurant - you request something and they should return with what you requested. At a diner, for example, if you ask them for food, they eventually return with that food. 2 So when you’re surfin' the web, and you go to example.com, or click a link, you’re asking a server to send you a web page. -
The End of Documentation
The End of Documentation A Better Way for Developers and Engineers to Preserve and Share Knowledge Introduction When software developers are trying to share knowledge within their organization, there are two principle methods most teams fall back on: documentation and conversation. Conversation can happen face to face, over email, or in chat apps. Documentation takes the form of notes left in the code, lengthy written records and company wikis. Both of these approaches, however, have serious drawbacks. In our latest developer survey, which collected answers from over 90,000 active programmers, respondents felt the greatest challenge to productivity was a distracting work environment. Developers are seeking solid chunks of time in which they can dive deep into focused work, ideally finding their way to a flow state. And as academic research on the daily lives of programmers over the last two decades has shown, the most common breaks from writing code are for meeting with colleagues, reviewing documentation and answering instant messages. Greatest challenges to productivity 68,141 responses Stack Overflow Developer Survey 2019 2 Check the receipts Expensify is an example of what these problems look like in the real world At Expensify, a fast growing Silicon Valley startup focused on simplifying the process of collecting receipts and filing for reimbursements, both of these pain points were present. To help onboard new hires, the team created a wealth of documentation, but it wasn’t easily accessible. “Our documentation at Expensify has been…fairly terrible in the past,” said software engineer John Lee. “People would rather talk to someone with more knowledge than to go search through all these pages of documentation we wrote.” Expensify prides itself on being a flat organization.