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Web Vmstat Any Distros, Especially Here’S Where Web Vmstat Comes Those Targeted at In
FOSSPICKS Sparkling gems and new releases from the world of FOSSpicks Free and Open Source Software Mike Saunders has spent a decade mining the internet for free software treasures. Here’s the result of his latest haul… Shiny statistics in a browser Web VMStat any distros, especially Here’s where Web VMStat comes those targeted at in. It’s a system monitor that runs Madvanced users, ship an HTTP server, so you can connect with shiny system monitoring tools to it via a web browser and see on the desktop. Conky is one such fancy CSS-driven charts. Before you tool, while GKrellM was all the rage install it, you’ll need to get the in the last decade, and they are websocketd utility, which you can genuinely useful for keeping tabs find at https://github.com/ on your boxes, especially when joewalnes/websocketd. Helpfully, you’re an admin in charge of the developer has made pre- various servers. compiled executables available, so Now, pretty much all major you can just grab the 32-bit or distros include a useful command 64-bit tarball, extract it and there line tool for monitoring system you have it: websocketd. (Of course, Here’s the standard output for vmstat – not very interesting, right? resource usage: vmstat. Enter if you’re especially security vmstat 1 in a terminal window and conscious, you can compile it from copy the aforementioned you’ll see a regularly updating (once its source code.) websocketd into the same place. per second) bunch of statistics, Next, clone the Web VMStat Git Then just enter: showing CPU usage, free RAM, repository (or grab the Zip file and ./run swap usage and so forth. -
Backbox Penetration Testing Never Looked So Lovely
DISTROHOPPER DISTROHOPPER Our pick of the latest releases will whet your appetite for new Linux distributions. Picaros Diego Linux for children. here are a few distributions aimed at children: Doudou springs to mind, Tand there’s also Sugar on a Stick. Both of these are based on the idea that you need to protect children from the complexities of the computer (and protect the computer from the children). Picaros Diego is different. There’s nothing stripped- down or shielded from view. Instead, it’s a normal Linux distro with a brighter, more kid-friendly interface. The desktop wallpaper perhaps best We were too busy playing Secret Mario on Picaros Diego to write a witty or interesting caption. exemplifies this. On one hand, it’s a colourful cartoon image designed to interest young file manager. In the programming category, little young for a system like this, but the it children. Some of the images on the we were slightly disappointed to discover it may well work for children on the upper end landscape are icons for games, and this only had Gambas (a Visual Basic-like of that age range. should encourage children to investigate the language), and not more popular teaching Overall, we like the philosophy of wrapping system rather than just relying on menus. languages like Scratch or a Python IDE. Linux is a child-friendly package, but not On the other hand, it still displays technical However, it’s based on Debian, so you do dumbing it down. Picaros Diego won’t work details such as the CPU usage and the RAM have the full range of software available for every child, but if you have a budding and Swap availability. -
The Gnome Bazaar How Gnome Gets Built and How We Can Improve
the gnome bazaar how gnome gets built and how we can improve daniel g. siegel 1. some serious stuff about my thesis 2. awesome gnome stuff how do foss projects work, which structures do they have and which workflows have they established. to accomplish this, several foss will be analyzed in order to identify concertedly models. in addition they will be compared to traditional software engineering models in order to see whether they are similar or oppose differences. good selection of projects with which the analysis is able to produce reliable and reasonable results • popularity • community • age ◦ communication • category ◦ number of developers • activity ◦ conferences ◦ releases ◦ foundations ◦ downloads ◦ ongoing projects ◦ commits project origin category Debian 1993 operating system Drupal 2001 content management system Fedora 2002 operating system GNOME 1997 desktop environment KDE 1996 desktop environment MySQL/MariaDB 1997 database management system PHP 1994 interpreted programming language Plone 1999 content management system PostgreSQL 1986 database management system Python 1989 interpreted programming language results 1 • history & origin 2 • community structure 3 • release process 4 • development model "[...] rather, the community seemed to resemble a great babbling bazaar of differing agendas and approaches" eric s. raymond what? comparison 1 • history & origin 2 • community structure 3 • release process 4 • development model history & origin • diverse origin • small group of founders • big burst of growth after first release • more big bursts before big releases community structure • very hierarchical • lead by leader or team • differences in hierachical structure • though easy to step up the ladder community structure: remarks • missing visionary • role of rt • unfruitful discussions release process • mostly fixed release cycles • lead by release manager/team • similar phases in all projects release process: remarks • cycle often too long for small projects • api/abi compatibility • jhbuild etc. -
Porting a Window Manager from Xlib to XCB
Porting a Window Manager from Xlib to XCB Arnaud Fontaine (08090091) 16 May 2008 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version pub- lished by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". Contents List of figures i List of listings ii Introduction 1 1 Backgrounds and Motivations 2 2 X Window System (X11) 6 2.1 Introduction . .6 2.2 History . .6 2.3 X Window Protocol . .7 2.3.1 Introduction . .7 2.3.2 Protocol overview . .8 2.3.3 Identifiers of resources . 10 2.3.4 Atoms . 10 2.3.5 Windows . 12 2.3.6 Pixmaps . 14 2.3.7 Events . 14 2.3.8 Keyboard and pointer . 15 2.3.9 Extensions . 17 2.4 X protocol client libraries . 18 2.4.1 Xlib . 18 2.4.1.1 Introduction . 18 2.4.1.2 Data types and functions . 18 2.4.1.3 Pros . 19 2.4.1.4 Cons . 19 2.4.1.5 Example . 20 2.4.2 XCB . 20 2.4.2.1 Introduction . 20 2.4.2.2 Data types and functions . 21 2.4.2.3 xcb-util library . 22 2.4.2.4 Pros . 22 2.4.2.5 Cons . 23 2.4.2.6 Example . 23 2.4.3 Xlib/XCB round-trip performance comparison . -
Many Things Related to Qubesos
Qubes OS Many things Many things related to QubesOS Author: Neowutran Contents 1 Wiping VM 2 1.1 Low level storage technologies .................. 2 1.1.1 Must read ......................... 2 1.1.2 TL;DR of my understanding of the issue ........ 2 1.1.3 Things that could by implemented by QubesOS .... 2 2 Create a Gaming HVM 2 2.1 References ............................. 2 2.2 Prerequise ............................. 3 2.3 Hardware ............................. 3 2.4 Checklist .............................. 4 2.5 IOMMU Group .......................... 4 2.6 GRUB modification ........................ 4 2.7 Patching stubdom-linux-rootfs.gz ................ 5 2.8 Pass the GPU ........................... 6 2.9 Conclusion ............................. 6 2.10 Bugs ................................ 6 3 Create a Linux Gaming HVM, integrated with QubesOS 7 3.1 Goals ................................ 7 3.2 Hardware used .......................... 7 3.3 Main steps summary ....................... 7 3.3.1 Detailled steps ...................... 8 3.3.2 Using a kernel provided by debian ............ 8 3.4 Xorg ................................ 8 3.4.1 Pulseaudio ......................... 11 3.5 Final notes ............................ 11 3.6 References ............................. 12 4 Nitrokey and QubeOS 12 5 Recovery: Mount disk 12 6 Disposable VM 13 6.1 Introduction ............................ 14 6.1.1 References ......................... 14 6.1.2 What is a disposable VM? ................ 14 6.2 Playing online video ....................... 14 6.3 Web browsing ........................... 15 6.4 Manipulating untrusted files/data ................ 16 1 6.5 Mounting LVM image ...................... 17 6.6 Replace sys-* VM ......................... 18 6.7 Replace some AppVMs ...................... 18 7 Building a new QubesOS package 18 7.1 References ............................. 18 7.2 Goal ................................ 18 7.3 The software ............................ 19 7.4 Packaging ............................. 19 7.5 Building ............................. -
SMTP Protocol
CS 280 Lecture 4: Application Layer, Email, DNS, P2P John Magee 21 September 2016 Most slides adapted from Kurose and Ross, Computer Networking 7/e Source material copyright 1996-2016 1 J.F Kurose and K.W. Ross Chapter 2: outline Last Class: 2.1 principles of network Next Class: applications 2.6 video streaming and 2.2 Web and HTTP content distribution networks Today: 2.7 socket programming with UDP and TCP 2.3 electronic mail • SMTP, POP3, IMAP 2.4 DNS 2.5 P2P applications Application Layer 2-2 outgoing Electronic mail message queue user mailbox Three major components: user agent . user agents . mail servers mail user server . simple mail transfer agent protocol: SMTP SMTP mail user server agent User Agent SMTP . a.k.a. “mail reader” SMTP user agent . composing, editing, reading mail server mail messages user . e.g., Outlook, Thunderbird, agent iPhone mail client user . outgoing, incoming agent messages stored on server Application Layer 2-3 Electronic mail: mail servers mail servers: user agent . mailbox contains incoming messages for user mail user server . message queue of outgoing agent (to be sent) mail messages SMTP mail user . SMTP protocol between server agent mail servers to send email SMTP messages SMTP user agent • client: sending mail mail server server • “server”: receiving mail user server agent user agent Application Layer 2-4 Electronic Mail: SMTP [RFC 2821] . uses TCP to reliably transfer email message from client to server, port 25 . direct transfer: sending server to receiving server . three phases of transfer • handshaking (greeting) • transfer of messages • closure . command/response interaction (like HTTP) • commands: ASCII text • response: status code and phrase . -
Statement from Directtrust Regarding the EFAIL Vulnerability
Statement from DirectTrust regarding the EFAIL Vulnerability Summary EFAIL is a set of attacks used to exploit vulnerabilities in email clients that decrypt and display PGP and S/MIME encrypted messages by coercing them into sending the decrypted text of the emails to an attacker. Properly implemented, Direct is NOT vulnerable. However, we recommend that if you are exchanging with anyone outside of the DirectTrust Network, you will want to understand at a reasonable depth how their implementation protects against EFAIL. How does EFAIL work? EFAIL consists of two different attack scenarios that create “backchannels” to send the decrypted text to an attacker. Both require an attacker to first obtain the encrypted message. 1. The attacker “wraps” the encrypted body with carefully crafted markup that can result in an email client decrypting the message and sending the decrypted body to the attacker. 2. The attacker manipulates the encrypted body of the message using well known S/MIME weaknesses that produce a message that can send the decrypted body to the attacker once rendered in the email client. Although the attacks are different, the end result is the same: a vulnerable email client sends the decrypted text to the attacker. How is this relevant to Direct? Direct uses S/MIME to encrypt messages, so in theory every Direct message could be vulnerable to this attack. However, Direct, when implemented correctly, is NOT vulnerable. The vulnerability is only applicable if decryption and rendering of the message are done in certain email clients like Thunderbird, iOS, Apple Mail, and some versions of Outlook. -
[Hal-00744922, V1] Improving Content Availability in the I2P Anonymous
Improving Content Availability in the I2P Anonymous File-Sharing Environment Juan Pablo Timpanaro, Isabelle Chrisment*, Olivier Festor INRIA Nancy-Grand Est, France *LORIA - ESIAL, Universit´ede Lorraine Email: fjuanpablo.timpanaro, [email protected] Email: [email protected] Abstract. Anonymous communication has gained more and more inter- est from Internet users as privacy and anonymity problems have emerged. Dedicated anonymous networks such as Freenet and I2P allow anony- mous file-sharing among users. However, one major problem with anony- mous file-sharing networks is that the available content is highly reduced, mostly with outdated files, and non-anonymous networks, such as the BitTorrent network, are still the major source of content: we show that in a 30-days period, 21648 new torrents were introduced in the BitTor- rent community, whilst only 236 were introduced in the anonymous I2P network, for four different categories of content. Therefore, how can a user of these anonymous networks access this varied and non-anonymous content without compromising its anonymity? In this paper, we improve content availability in an anonymous environment by proposing the first internetwork model allowing anonymous users to access and share content in large public communities while remaining anonymous. We show that our approach can efficiently interconnect I2P users and public BitTorrent swarms without affecting their anonymity nor their performance. Our model is fully implemented and freely usable. 1 Introduction Peer-to-peer file-sharing has always been one of the major sources of the Internet hal-00744922, version 1 - 24 Oct 2012 traffic, since its early beginnings in 2000. It has been moving from semi-central approaches (eDonkey2000, for example), to semi-decentralized approaches (Kazaa, for instance) to fully decentralized file-sharing architectures (like the KAD net- work). -
Github: a Case Study of Linux/BSD Perceptions from Microsoft's
1 FLOSS != GitHub: A Case Study of Linux/BSD Perceptions from Microsoft’s Acquisition of GitHub Raula Gaikovina Kula∗, Hideki Hata∗, Kenichi Matsumoto∗ ∗Nara Institute of Science and Technology, Japan {raula-k, hata, matumoto}@is.naist.jp Abstract—In 2018, the software industry giants Microsoft made has had its share of disagreements with Microsoft [6], [7], a move into the Open Source world by completing the acquisition [8], [9], the only reported negative opinion of free software of mega Open Source platform, GitHub. This acquisition was not community has different attitudes towards GitHub is the idea without controversy, as it is well-known that the free software communities includes not only the ability to use software freely, of ‘forking’ so far, as it it is considered as a danger to FLOSS but also the libre nature in Open Source Software. In this study, development [10]. our aim is to explore these perceptions in FLOSS developers. We In this paper, we report on how external events such as conducted a survey that covered traditional FLOSS source Linux, acquisition of the open source platform by a closed source and BSD communities and received 246 developer responses. organization triggers a FLOSS developers such the Linux/ The results of the survey confirm that the free community did trigger some communities to move away from GitHub and raised BSD Free Software communities. discussions into free and open software on the GitHub platform. The study reminds us that although GitHub is influential and II. TARGET SUBJECTS AND SURVEY DESIGN trendy, it does not representative all FLOSS communities. -
How to Use Encryption and Privacy Tools to Evade Corporate Espionage
How to use Encryption and Privacy Tools to Evade Corporate Espionage An ICIT White Paper Institute for Critical Infrastructure Technology August 2015 NOTICE: The recommendations contained in this white paper are not intended as standards for federal agencies or the legislative community, nor as replacements for enterprise-wide security strategies, frameworks and technologies. This white paper is written primarily for individuals (i.e. lawyers, CEOs, investment bankers, etc.) who are high risk targets of corporate espionage attacks. The information contained within this briefing is to be used for legal purposes only. ICIT does not condone the application of these strategies for illegal activity. Before using any of these strategies the reader is advised to consult an encryption professional. ICIT shall not be liable for the outcomes of any of the applications used by the reader that are mentioned in this brief. This document is for information purposes only. It is imperative that the reader hires skilled professionals for their cybersecurity needs. The Institute is available to provide encryption and privacy training to protect your organization’s sensitive data. To learn more about this offering, contact information can be found on page 41 of this brief. Not long ago it was speculated that the leading world economic and political powers were engaged in a cyber arms race; that the world is witnessing a cyber resource buildup of Cold War proportions. The implied threat in that assessment is close, but it misses the mark by at least half. The threat is much greater than you can imagine. We have passed the escalation phase and have engaged directly into full confrontation in the cyberwar. -
HHS Lesson 8: Forensics
LESSON 8 DIGITAL FORENSICS AND COUNTER FORENSICS Lesson 8: Forensics WARNING The Hacker Highschool Project is a learning tool and as with any learning tool there are dangers. Some lessons, if abused, may result in physical injury. Some additional dangers may also exist where there is not enough research on possible effects of emanations from particular technologies. Students using these lessons should be supervised yet encouraged to learn, try, and do. However ISECOM cannot accept responsibility for how any information herein is abused. The following lessons and workbooks are open and publicly available under the following terms and conditions of ISECOM: All works in the Hacker Highschool Project are provided for non-commercial use with elementary school students, junior high school students, and high school students whether in a public institution, private institution, or a part of home-schooling. These materials may not be reproduced for sale in any form. The provision of any class, course, training, or camp with these materials for which a fee is charged is expressly forbidden without a license, including college classes, university classes, trade-school classes, summer or computer camps, and similar. To purchase a license, visit the LICENSE section of the HHS web page at http://www.hackerhighschool.org/licensing.html. The Hacker Highschool Project is an open community effort and if you find value in this project, we ask that you support us through the purchase of a license, a donation, or sponsorship. 2 Lesson 8: Forensics Table of -
Diplomat: Using Delegations to Protect Community Repositories
Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy, Santiago Torres-Arias, Vladimir Diaz, and Justin Cappos, New York University https://www.usenix.org/conference/nsdi16/technical-sessions/presentation/kuppusamy This paper is included in the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16). March 16–18, 2016 • Santa Clara, CA, USA ISBN 978-1-931971-29-4 Open access to the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16) is sponsored by USENIX. Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy Santiago Torres-Arias Vladimir Diaz Justin Cappos Tandon School of Engineering, New York University Abstract software. Major repositories run by Adobe, Apache, Debian, Fedora, FreeBSD, Gentoo, GitHub, GNU Sa- Community repositories, such as Docker Hub, PyPI, vannah, Linux, Microsoft, npm, Opera, PHP, RedHat, and RubyGems, are bustling marketplaces that distribute RubyGems, SourceForge, and WordPress repositories software. Even though these repositories use common have all been compromised at least once [4,5,7,27,28,30, software signing techniques (e.g., GPG and TLS), at- 31,35,36,39–41,48,59,61,62,67,70,79,80,82,86,87,90]. tackers can still publish malicious packages after a server For example, a compromised SourceForge repository compromise. This is mainly because a community repos- mirror located in Korea distributed a malicious ver- itory must have immediate access to signing keys in or- sion of phpMyAdmin, a popular database administration der to certify the large number of new projects that are tool [79]. The modified version allowed attackers to gain registered each day.