Blackarch Linux, the Blackarch Linux Guide
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Ubuntu Installation Guide
Ubuntu Installation Guide Ubuntu Installation Guide Copyright © 2004 – 2020 the Debian Installer team Copyright © 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2015, 2018 Canonical Ltd. This document contains installation instructions for the Ubuntu 20.04 system (codename “‘Focal Fossa’”), for the S/390 (“s390x”) architecture. It also contains pointers to more information and information on how to make the most of your new Ubuntu system. This manual is free software; you may redistribute it and/or modify it under the terms of the GNU General Public License. Please refer to the license in Appendix F. Table of Contents Installing Ubuntu 20.04 “Focal Fossa” For s390x...........................................................................ix 1. Welcome to Ubuntu ........................................................................................................................1 1.1. What is Ubuntu?...................................................................................................................1 1.1.1. Sponsorship by Canonical .......................................................................................1 1.2. What is Debian? ...................................................................................................................1 1.2.1. Ubuntu and Debian..................................................................................................2 1.2.1.1. Package selection........................................................................................2 1.2.1.2. Releases.......................................................................................................3 -
Performance Assessment of Linux Kernels with PREEMPT RT on ARM-Based Embedded Devices
electronics Article Performance Assessment of Linux Kernels with PREEMPT_RT on ARM-Based Embedded Devices George K. Adam 1,* , Nikos Petrellis 2 and Lambros T. Doulos 3 1 CSLab Computer Systems Laboratory, Department of Digital Systems, University of Thessaly, 41500 Larisa, Greece 2 Department of Electrical and Computer Engineering, University of Peloponnese, 26334 Patra, Greece; [email protected] 3 School of Applied Arts, Hellenic Open University, 26335 Patra, Greece; [email protected] * Correspondence: [email protected]; Tel.: +30-241-0684-596 Abstract: This work investigates the real-time performance of Linux kernels and distributions with a PREEMPT_RT real-time patch on ARM-based embedded devices. Experimental measurements, which are mainly based on heuristic methods, provide novel insights into Linux real-time perfor- mance on ARM-based embedded devices (e.g., BeagleBoard and RaspberryPi). Evaluations of the Linux real-time performance are based on specific real-time software measurement modules, devel- oped for this purpose, and the use of a standard benchmark tool, cyclictest. Software modules were designed upon the introduction of a new response task model, an innovative aspect of this work. Measurements include the latency of response tasks at user and kernel space, the response on the exe- cution of periodic tasks, the maximum sustained frequency and general latency performance metrics. The results show that in such systems the PREEMPT_RT patch provides more improved real-time performance than the default Linux kernels. The latencies and particularly the worst-case latencies are reduced with real-time support, thus making such devices running Linux with PREEMPT_RT Citation: Adam, G.K.; Petrellis, N.; more appropriate for use in time-sensitive embedded control systems and applications. -
Introduction to Fmxlinux Delphi's Firemonkey For
Introduction to FmxLinux Delphi’s FireMonkey for Linux Solution Jim McKeeth Embarcadero Technologies [email protected] Chief Developer Advocate & Engineer For quality purposes, all lines except the presenter are muted IT’S OK TO ASK QUESTIONS! Use the Q&A Panel on the Right This webinar is being recorded for future playback. Recordings will be available on Embarcadero’s YouTube channel Your Presenter: Jim McKeeth Embarcadero Technologies [email protected] | @JimMcKeeth Chief Developer Advocate & Engineer Agenda • Overview • Installation • Supported platforms • PAServer • SDK & Packages • Usage • UI Elements • Samples • Database Access FireDAC • Migrating from Windows VCL • midaconverter.com • 3rd Party Support • Broadway Web Why FMX on Linux? • Education - Save money on Windows licenses • Kiosk or Point of Sale - Single purpose computers with locked down user interfaces • Security - Linux offers more security options • IoT & Industrial Automation - Add user interfaces for integrated systems • Federal Government - Many govt systems require Linux support • Choice - Now you can, so might as well! Delphi for Linux History • 1999 Kylix: aka Delphi for Linux, introduced • It was a port of the IDE to Linux • Linux x86 32-bit compiler • Used the Trolltech QT widget library • 2002 Kylix 3 was the last update to Kylix • 2017 Delphi 10.2 “Tokyo” introduced Delphi for x86 64-bit Linux • IDE runs on Windows, cross compiles to Linux via the PAServer • Designed for server side development - no desktop widget GUI library • 2017 Eugene -
Installing a Real-Time Linux Kernel for Dummies
Real-Time Linux for Dummies Jeroen de Best, Roel Merry DCT 2008.103 Eindhoven University of Technology Department of Mechanical Engineering Control Systems Technology group P.O. Box 513, WH -1.126 5600 MB Eindhoven, the Netherlands Phone: +31 40 247 42 27 Fax: +31 40 246 14 18 Email: [email protected], [email protected] Website: http://www.dct.tue.nl Eindhoven, January 5, 2009 Contents 1 Introduction 1 2 Installing a Linux distribution 3 2.1 Ubuntu 7.10 . .3 2.2 Mandriva 2008 ONE . .6 2.3 Knoppix 3.9 . 10 3 Installing a real-time kernel 17 3.1 Automatic (Ubuntu only) . 17 3.1.1 CPU Scaling Settings . 17 3.2 Manually . 18 3.2.1 Startup/shutdown problems . 25 4 EtherCAT for Unix 31 4.1 Build Sources . 38 4.1.1 Alternative timer in the EtherCAT Target . 40 5 TUeDACs 43 5.1 Download software . 43 5.2 Configure and build software . 44 5.3 Test program . 45 6 Miscellaneous 47 6.1 Installing ps2 and ps4 printers . 47 6.1.1 In Ubuntu 7.10 . 47 6.1.2 In Mandriva 2008 ONE . 47 6.2 Configure the internet connection . 48 6.3 Installing Matlab2007b for Unix . 49 6.4 Installing JAVA . 50 6.5 Installing SmartSVN . 50 6.6 Ubuntu 7.10, Gutsy Gibbon freezes every 10 minutes for approximately 10 sec 51 6.7 Installing Syntek Semicon DC1125 Driver . 52 Bibliography 55 A Menu.lst HP desktop computer DCT lab WH -1.13 57 i ii CONTENTS Chapter 1 Introduction This document describes the steps needed in order to obtain a real-time operating system based on a Linux distribution. -
Ubuntu Server Guide Basic Installation Preparing to Install
Ubuntu Server Guide Welcome to the Ubuntu Server Guide! This site includes information on using Ubuntu Server for the latest LTS release, Ubuntu 20.04 LTS (Focal Fossa). For an offline version as well as versions for previous releases see below. Improving the Documentation If you find any errors or have suggestions for improvements to pages, please use the link at thebottomof each topic titled: “Help improve this document in the forum.” This link will take you to the Server Discourse forum for the specific page you are viewing. There you can share your comments or let us know aboutbugs with any page. PDFs and Previous Releases Below are links to the previous Ubuntu Server release server guides as well as an offline copy of the current version of this site: Ubuntu 20.04 LTS (Focal Fossa): PDF Ubuntu 18.04 LTS (Bionic Beaver): Web and PDF Ubuntu 16.04 LTS (Xenial Xerus): Web and PDF Support There are a couple of different ways that the Ubuntu Server edition is supported: commercial support and community support. The main commercial support (and development funding) is available from Canonical, Ltd. They supply reasonably- priced support contracts on a per desktop or per-server basis. For more information see the Ubuntu Advantage page. Community support is also provided by dedicated individuals and companies that wish to make Ubuntu the best distribution possible. Support is provided through multiple mailing lists, IRC channels, forums, blogs, wikis, etc. The large amount of information available can be overwhelming, but a good search engine query can usually provide an answer to your questions. -
Some Ethical Hacking Possibilities in Kali Linux Environment
Vol. 9, No. 4, 2019 pp. 129-149 http://doi.org/10.24368/jates.v9i4.139 21 129 Journal of Applied Technical and Educational Sciences jATES ISSN 2560-5429 http://jates.org Some ethical hacking possibilities in Kali Linux environment Petar Cisara, Robert Pinterb aUniversity of Criminal Investigation and Police Studies, Cara Dusana 196, 11080 Zemun, Serbia, [email protected] bSubotica Tech - College of Applied Sciences, Marka Oreskovica 16, 24000 Subotica, Serbia, [email protected] Abstract This paper deals with the problem of ethical hacking and security of computer systems. When we talk about security of an information system, we actually mean the primary three attributes of the system: confidentiality, integrity and availability. There are various approaches with aim to identify existing security weaknesses and security assessment. One of them is using Kali Linux operating system with its integrated effective tools specially adapted to the realization of various types of attacks. The paper gives a general overview of some Kali attacking possibilities on client and server side and highlights their specificities. The undoubted benefit of this operating system is a large collection of different hacking tools in one place which significantly facilitates vulnerability assessment and security testing. Keywords: Kali Linux; tools; attack; security; ethical hacking 1. Introduction In general, four main categories (or phases) of information security assessments can be identified (Hertzog, 2017): a vulnerability assessment, a compliance (audit) test, a traditional internal/external penetration test, and an application assessment. There are various methods with aim to identify existing security weaknesses and security assessment (Allen, 2014). -
The Linux Command Line
The Linux Command Line Second Internet Edition William E. Shotts, Jr. A LinuxCommand.org Book Copyright ©2008-2013, William E. Shotts, Jr. This work is licensed under the Creative Commons Attribution-Noncommercial-No De- rivative Works 3.0 United States License. To view a copy of this license, visit the link above or send a letter to Creative Commons, 171 Second Street, Suite 300, San Fran- cisco, California, 94105, USA. Linux® is the registered trademark of Linus Torvalds. All other trademarks belong to their respective owners. This book is part of the LinuxCommand.org project, a site for Linux education and advo- cacy devoted to helping users of legacy operating systems migrate into the future. You may contact the LinuxCommand.org project at http://linuxcommand.org. This book is also available in printed form, published by No Starch Press and may be purchased wherever fine books are sold. No Starch Press also offers this book in elec- tronic formats for most popular e-readers: http://nostarch.com/tlcl.htm Release History Version Date Description 13.07 July 6, 2013 Second Internet Edition. 09.12 December 14, 2009 First Internet Edition. 09.11 November 19, 2009 Fourth draft with almost all reviewer feedback incorporated and edited through chapter 37. 09.10 October 3, 2009 Third draft with revised table formatting, partial application of reviewers feedback and edited through chapter 18. 09.08 August 12, 2009 Second draft incorporating the first editing pass. 09.07 July 18, 2009 Completed first draft. Table of Contents Introduction....................................................................................................xvi -
Manjaro Linux, Bash and Touchscreen on a Raspberry PI 4 Model B
Manjaro Linux, Bash and Touchscreen on a Raspberry PI 4 Model B A HowTo and helper for Manjaro ARM with RPI4 And a lot of generic stuff on BASH, Linux, etc. By Atanas Rusev, March 2020 www.atanasrusev.com Read time: 30+ minutes – check the Table of Contents for overview. INTRODUCTION: I decided to work with a Raspberry Pi 4 (RPI4), with attached 7 inch touch screen (sold by Kuman, HDMI based). I wanted a scalable OS, which will provide me the biggest support of SW and libraries - and this can be only Linux. I wanted to be able to custom trim it up to level where I really have only and exactly what I need - so this would be Yocto based builds. So - as I person who have used Ubuntu, Fedora, Linux Mint and Arch Linux - I had to look for better, purer and trimmable Linux. Some details related to this research are in this article. To keep the long story short - I chose Arch Linux. Arch is one of the distros known for keeping most up-to-date kernel, to be rolling release based; most limited in extra features; has a great community; and is around since 2002. I wanted to use on the test PC the same Linux Distro I can use on the RPI4 - so that I can easily transfer developed modules. And later jump on Yocto to make my custom trims. And Arch Linux turned out to be hard lately - I had multiple issues when I installed the latest version on my test PC (despite that the previous time I worked with it I seldom had blockers). -
Nix(OS) - Revolutionizing Packaging and Configuration Management!
Nix(OS) - Revolutionizing packaging and configuration management! The Purely Functional Linux Distribution 1 Before we begin (FYI) Ask questions at any time Please ask lots of questions :) The slides contain some redundancy There are a few optional slides at the end Please give me feedback Louder Faster/slower More/less details Etc. 2 About me Michael Weiss aka. primeos Computer science student at the University of Tübingen I love free soware, etc. First nixpkgs commit: 2016-10-05 I maintain ~41 packages and ~3 modules (2018-06-08) I also love privacy (i.e. no more details :P) Email: [email protected] (#privacy) 3 Main components Nix (package manager) Nixpkgs (Nix packages collection) NixOS (operating system) NixOps (DevOps / cloud deployment tool) 4 Nix* ISO/OSI model NixOps NixOS Nixpkgs Nix 5 Other tools Hydra (Nix based continuous build system) Disnix (distributed services deployment) PatchELF (change dynamic linker and RPATH) {cabal,go,node,pip,python,pypi,composer,hex,bower,vim,...}2 6 History Started as a research project (with funding) First paper in 2004 (many will follow) Nix package manager developed by Eelco Dolstra as part of his PhD research (~2003) First NixOS prototype developed by Armijn Hemel as his master's thesis project Hydra developed as part of the LaQuSo Buildfarm project 7 Timeline 2003: init (research begins) 2007: NixOS becomes usable + x86_64 support 2008: Website moved to nixos.org 2009: Nix logo + Nix(OS) build on Hydra 2011: Migration from Subversion to Git(Hub) 2013: Switch from Upstart to systemd + -
Today's Howtos Today's Howtos
Published on Tux Machines (http://www.tuxmachines.org) Home > content > today's howtos today's howtos By Roy Schestowitz Created 19/12/2020 - 10:59pm Submitted by Roy Schestowitz on Saturday 19th of December 2020 10:59:01 PM Filed under HowTos [1] How to Migrate CentOS Linux 6, 7, 8 servers to Oracle Linux - Linux Shout[2] Centos Linux 8 server or desktop which would be out of the shelf by the Redhat next year becomes a topic of apprehension for some users or administrators. However, those are on CentOS 7 they don?t have to worry yet because still, there is a time, as it will reach to end of its life in 2024. Well, one of the popular alternatives which are available to switch the CentOS 6 or 8 is the Oracle Linux, which is free and works with the same binaries used by the CentOS after all both are RPM-based and descendent of Redhat. If you are worried about your installed applications and packages on CentOS 8/7/6 Linux in the process of migration then you don?t have too much because most of them will be intact as they are, even after switching to Oracle Linux. Let?s talk a little bit about Oracle Linux, it is free to download, use, and distribute (even source code) operating system based on RedHat that?s why it is compatible with most of the binaries of RHEL or CentOS. Even enterprises can use it in a production environment free of cost without any obligation from Oracle. -
Delphi's Firemonkey for Linux Solution
Introduction to FMXLinux Delphi’s FireMonkey for Linux Solution Jim McKeeth Embarcadero Technologies [email protected] Chief Developer Advocate & Engineer Slides, replay and more https://embt.co/FMXLinuxIntro Your Presenter: Jim McKeeth Embarcadero Technologies [email protected] | @JimMcKeeth Chief Developer Advocate & Engineer Agenda • Overview • Installation • Supported platforms • PAServer • SDK & Packages • Usage • UI Elements • Samples • Database Access FireDAC • Migrating from Windows VCL • midaconverter.com • 3rd Party Support • Broadway Web Why FMX on Linux? • Education - Save money on Windows licenses • Kiosk or Point of Sale - Single purpose computers with locked down user interfaces • Security - Linux offers more security options • IoT & Industrial Automation - Add user interfaces for integrated systems • Federal Government - Many govt systems require Linux support • Choice - Now you can, so might as well! Delphi for Linux History • 1999 Kylix: aka Delphi for Linux, introduced • It was a port of the IDE to Linux • Linux x86 32-bit compiler • Used the Trolltech QT widget library • 2002 Kylix 3 was the last update to Kylix • 2017 Delphi 10.2 “Tokyo” introduced Delphi for x86 64-bit Linux • IDE runs on Windows, cross compiles to Linux via the PAServer • Designed for server side development - no desktop widget GUI library • 2017 Eugene Kryukov of KSDev release FMXLinux • Eugene was one of the original architects of FireMonkey • A modification of FireMonkey, bringing FMX to Linux • 2019 Embarcadero includes FMXLinux -
|FREE| Unix Desktop Guide To
UNIX DESKTOP GUIDE TO C C EBOOK Author: Sams Staff Number of Pages: none Published Date: 01 Nov 1991 Publisher: Prentice Hall (Higher Education Division, Pearson Education) Publication Country: New Jersey, United States Language: English ISBN: 9780672300943 Download Link: CLICK HERE Unix Desktop Guide To C C Online Read Archived from the original on October 13, What are Computer Programming Languages? Meta magazine. The language was introduced to the public in and is now owned by Oracle. Python OOP 3. Free software projects, although developed through collaborationare often produced independently of each other. Process scheduling subsystem. IBM Developer Works. Archived from the original on October 17, Archived from the original on December 30, Offers a free, extensive course in C fundamentals Microsoft Unix Desktop Guide to c C Academy. Reviews Unix Desktop Guide To C C Archived from the original PDF on January 11, These projects are based on the GTK and Qt widget toolkitsrespectively, which can also be used independently of the larger framework. It is also possible to run applications written for Android on other versions of Linux using Anbox. C Language is a structure-oriented, middle-level programming language mostly used to develop Unix Desktop Guide to c C applications. Main article: Video4Linux. Retrieved April 14, Free and open-source software. Ina new initiative was launched to automatically collect a database of all tested hardware configurations. Archived from the original on May 19, Retrieved January 5, Build a minesweeper app or choose another mini project at Make School. Archived from the original on June 3, About Unix Desktop Guide To C C Writer Java Servlets 3.