Category: Linux

Building Embedded Linux Systems

There's loads of pleasure surrounding using Linux in embedded platforms -- for every little thing from mobile phones to vehicle ABS platforms and water-filtration crops -- yet no longer loads of useful details. Building Embedded Linux Systems bargains an in-depth, hard-core consultant to assembling embedded structures in line with Linux.

Updated for the most recent model of the Linux kernel, this new version delivers the fundamentals of establishing embedded Linux structures, besides the configuration, setup, and use of greater than forty various open resource and loose software program applications in universal use. The booklet additionally appears on the strengths and weaknesses of utilizing Linux in an embedded approach, plus a dialogue of licensing matters, and an advent to real-time, with a dialogue of real-time suggestions for Linux.

This crucial ebook positive factors arcane and formerly undocumented tactics for:

  • Building your personal GNU improvement toolchain
  • Using a good embedded improvement framework
  • Selecting, configuring, development, and fitting a target-specific kernel
  • Creating a whole aim root filesystem
  • Setting up, manipulating, and utilizing solid-state garage devices
  • Installing and configuring a bootloader for the target
  • Cross-compiling a slew of utilities and packages
  • Debugging your embedded method utilizing a plethora of instruments and techniques
  • Using the uClibc, BusyBox, U-Boot, OpenSSH, thttpd, tftp, strace, and gdb packages

By offering tips on how to construct the working method elements from pristine resources and the way to discover extra documentation or aid, Building Embedded Linux Systems tremendously simplifies the duty of retaining entire keep an eye on over your embedded working system.

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Linux Journal (October 2015)

Linux magazine is the unique journal of the worldwide Linux group, providing readers the recommendation and proposal they should get the main out in their Linux platforms. In-depth details presents an entire 360-degree examine featured themes in relation to Linux, giving a accomplished resource of every little thing readers want for developing and finishing their very own initiatives -- not only instruments they'll use at the present time, yet correct and encompassing info they are going to flip to sooner or later. as well as how-to content material, Linux magazine contains critiques, new product info, profiles of best Open resource participants and product studies. It additionally covers enterprise, social and technical information and advancements with the intention to satisfy its challenge because the valuable discussion board and suggest for the worldwide Linux neighborhood.

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Practical Linux Infrastructure

By Syed Ali

Practical Linux Infrastructure teaches you ways to take advantage of the easiest open resource instruments to construct a brand new Linux infrastructure, or modify an current infrastructure, to make sure it stands as much as enterprise-level wishes. every one bankruptcy covers a key region of implementation, with transparent examples and step by step instructions.

Using this booklet, you’ll comprehend why scale issues, and what issues you want to make. You’ll see the right way to swap to utilizing Google Cloud Platform to your hosted answer, the best way to use KVM on your virtualization, tips to use Git, Postfix, and MySQL on your model keep an eye on, e mail, and database, and the way to exploit Puppet on your configuration administration. For enterprise-level fault tolerance you’ll use Apache, and for load balancing and excessive availability, you are going to use HAProxy and Keepalived. For development research you’ll how one can use Cacti, and for notification you’ll use Nagios. You’ll additionally the way to make the most of BIND to enforce DNS, how one can use DHCP (Dynamic Host Configuration Protocol), and the way to setup distant entry on your infrastructure utilizing VPN and Iptables. you are going to end by way of taking a look at many of the instruments it is very important troubleshoot concerns that can take place together with your hosted infrastructure. This comprises the way to use CPU, community, disk and reminiscence administration instruments comparable to most sensible, netstat, iostat and vmstat.

Author Syed Ali is a senior website reliability engineering supervisor, who has large adventure with virtualization and Linux cloud dependent infrastructure. His past event as an entrepreneur in infrastructure computing deals him deep perception into how a enterprise can leverage the ability of Linux to their virtue. He brings his specialist wisdom to this booklet to educate others find out how to excellent their Linux environments. develop into a Linux infrastructure seasoned with Practical Linux Infrastructure today.

What you’ll learn

  • how to installation firm Linux infrastructure

    • Create networks, firewalls, load balancers

    • set up Postfix, Cacti, Nagios, Apache, MySQL

    • utilizing Google Cloud Platform (GCP) companies

    • difficulty shootings instruments resembling most sensible, tcpdump, iostat, vmstat

    • utilizing iptables to guard your host

    • set up a GIT server for resource code configuration management

    • Use rlog for log collections

Who this e-book is for

This booklet is perfect for Linux method directors who're at present coping with small to medium dimension Linux infrastructure environments and want to methods to deal with enterprise-level infrastructures. you'll be accustomed to uncomplicated procedure management, or web site reliability engineering paintings, yet are looking to tips on how to construct major, pro-level Linux infrastructure.

Table of Contents

  1. Chapter One: handling huge Scale Infrastructure

    2. bankruptcy : Hosted Cloud options utilizing Google Cloud Platform

    3. bankruptcy 3: Virtualization with KVM

    4. bankruptcy 4: MySQL, Git, Postfix

    5. bankruptcy 5: Configuration administration with Puppet

    6. bankruptcy Six: Apache for Enterprise-level Fault Tolerance

    7. bankruptcy Seven: tracking with Nagios & development research with Cacti

    8. bankruptcy 8: DNS utilizing Bind and DHCP

    9. bankruptcy 9: Log assortment, OpenVPN, Iptables

    10. bankruptcy Ten: Troubleshooting Tools

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Linux Format, Issue 159 (July 2012)

Ubuntu 12.04 vs home windows eight: we throw them either to our cruel testers. We've been listening to from Canonical for a while approximately how Ubuntu is making an attempt to draw new clients to Linux, that's why the corporate doesn't look too troubled to be wasting flooring to Mint: it figures that it'll greater than substitute them with people who find themselves new to desktops and should no longer also have heard of Linux. So why no longer examine it with one other working approach that's additionally had a renaissance: home windows eight? permit the conflict of the reinvented computer paradigms begin! additionally within the factor we seek advice from Allison Randal, technical architect of Ubuntu, approximately how the harmony test goes and the way the HUD matches into Canonical's grand plan, and listen to from the Ubuntu group supervisor Jono Bacon approximately how top to document insects with no making builders are looking to kill you. opt for the simplest package deal supervisor in your Linux approach, make a journey again in time with our hands-on advisor to emulating vintage video games consoles, and empathise with the past due nights Graham needed to installed to convey you the definitive standpoint on MythTV 0.25. All this and extra on your new Ubuntu layout! Er, Linux Format!

Features

Reporting insects - start with this fabulous strategy to give a contribution to the open resource neighborhood. (Jono Bacon)

Turn again Time - Do you lengthy for the distinction days of the Amiga? Fancy taking part in these outdated SNES video games back? Then subscribe to us as we try out the simplest emulators on the town. (Mike Saunders)

Ubuntu vs home windows - With home windows eight bearing a amazing similarity to Ubuntu, our testers pit the newest releases from either camps opposed to one another. (Mayank Sharma)

MythTV 0.25 - Graham Morrison selflessly suffers a nightmare set up and hours of sunlight hours television so you don't need to. (Graham Morrison)

Sysadmin - Esoteric approach management goodness from the impenetrable bowels of the server room. (Chris Brown)

Interview: Allison Randal - How do you get non-technical clients to give a contribution to the luck of loose software program? We met Allison Randal to determine. (Andrew Gregory)

Tutorials

File possession utilizing ACLS - deal with who can regulate records utilizing entry keep watch over lists. (Neil Bothwick)

Arduino: Write a few Libraries - within the final within the sequence, we assist you to write your personal Arduino libraries and feature extra enjoyable with LEDs (Nick Veitch)

Presentations - Graham Morrison distills many of the knowledge gleaned from an afternoon on Damian Conway's presentation direction. (Graham Morrison)

Raspberry Pi - If you're eagerly anticipating the supply of your Raspberry Pi, allow us to get you on top of things with this diminutive equipment. (Jonathan Roberts)

Hacking: Make Your web site secure - Get clever to hackers' tips with WebGoat. (Ben Everard)

Coding Academy

Android: neighborhood Databases - Create an SQLite database to construct a to-do record. (Juliet Kemp)

Code suggestions: Compilers - We clarify how a compiler does its magic, and the variation among compiled and interpreted languages. (Mike Saunders)

Python: learning textual content and Strings - notice that there's not anything simple approximately textual content, and how to use Unicode and ASCII with Python. (Nick Veitch)

Reviews

Calligra Suite - We have a look at the opposite open resource place of work suite. (Shashank Sharma)

CoreBreach - Race anti-gravity spacecraft to earn your freedom. (Ben Everard)

Ubuntu 12.04 - It's Ubuntu's first LTS unlock with solidarity because the default computing device, and they've bought it spot on. (Jonathan Roberts)

Package Managers - package deal administration is the final distinction among distributions, yet that is right for you? (Jonathan Roberts)

More

News: all of the most up-to-date information from the Linux universe

Google vs Oracle, Kubuntu, Steam Linux buyer, Linus Wins Millennium know-how Prize, The dying of ACTA, OpenMama aids worldwide capitalism and Mandriva lives on (Andrew Gregory)

Distrowatch: This month's roundup of stories from the vaults of Linux distro development

Rosa is going it on my own, Slitaz reaches four, Snow Linux leaves us chilly, and Canonical announce Ubuntu Glasses ... or do they? (Susan Linton)

What in the world: OStatus

We clarify how the full world-wide-web can turn into one open, interoperating social community (Marco Fioretti)

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Penetration Testing with the Bash shell

Make the main of the Bash shell and Kali Linux's commandlinebased safety evaluate tools

About This Book

  • Utilize the command line to create, run, and execute tests
  • Learn priceless command line dependent info processing utilities and free up the matter fixing strength of a Linux terminal
  • Practical demonstrations utilizing in-depth motives and screenshots that can assist you use the Linux Bash terminal to take on a suite of universal security-related problems.

Who This e-book Is For

If you're a penetration tester, process administrator, or developer who would prefer an enriching and useful creation to the Bash shell and Kali Linux command-line-based instruments, this is often the booklet for you.

What you are going to Learn

  • Perform community enumeration strategies with Dig, whois, dnsenum, dnsmap, and others
  • Learn the way to fuzz and opposite engineer utilizing the Kali Linux command line tools
  • Exploit universal net program vulnerabilities utilizing skipfish, arcachi, and sqlmap
  • Accomplish man-in-the-middle assaults directly out of your command line
  • Assess SSL safeguard utilizing sslyze and openssl
  • Carry out community site visitors research utilizing tcpdump

In Detail

This publication teaches you to take your challenge fixing functions to the subsequent point with the Bash shell, to evaluate community and alertness point safety via leveraging the ability of the command-line instruments to be had with Kali Linux.

The booklet starts off through introducing a number of the basic bash scripting and knowledge processing instruments. development in this, the following couple of chapters concentrate on detailing how you can customise your Bash shell utilizing functionalities equivalent to tab finishing touch and wealthy textual content formatting. After the elemental customization innovations and basic function instruments were mentioned, the publication breaks into issues resembling the command-line-based protection instruments within the Kali Linux working method. the final process in discussing those instruments is to contain basic objective instruments mentioned in prior chapters to combine safety evaluate instruments. this can be a one cease approach to examine Bash and resolve info safety problems.

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Linux Format, Issue 153 (January 2012)

Mozilla: greater than a browser - Mozilla, the maker of the vastly well known Firefox internet browser, is set much more than software program. (Jonathan Roberts)

Linux 2013 - 2011 used to be an enormous 12 months for Linux, with the kernel achieving its twentieth birthday. yet how varied may issues glance in 12 months' time? (Mayank Sharma)

We are loose Geek - Graham Morrison visits a non-profit emporium in Portland, Oregon, that recycles previous undefined, provides humans new abilities and installs Linux on hundreds of thousands of machines. (Graham Morrison)

12 purposes to like KDE - Graham Morrison rains positivity onto the world's so much configurable computer and selections out a few of its top features and functions (Graham Morrison)

Dr Brown's Administeria - we glance on the lifetime of Dennis Ritchie. Plus: We ask no matter if try to be qualified and delve deeper in to /etc (Chris Brown)

Interview: Arthur Richards - The Wikipedia software program engineer discusses funds, banner campaigns and his ardour for selling loose wisdom. (Mike Saunders, Graham Morrison)

PHP: construct a mystery Santa script - Why pull names from a hat if you happen to can script it? We allow you to construct any such script with Hypertext Preprocessor CLI. (James Litton)

Pencil: Produce life-like relocating works with this straightforward instrument - Jono Bacon exhibits us tips on how to get lively on Linux (Jono Bacon)

Arduino: Make a few noise - track maestro Nick Veitch takes tuning actually and transforms his Arduino right into a melody maker during this audibly nice instalment. (Nick Veitch)

Git: music your files' historical past - we glance at probably the most well known model keep watch over structures and enable you to positioned its services into every-day use. (Jonathan Roberts)

Banshee: Tidy up your library - wasting tune of all of your song and film records? enable Banshee offer you a hand, as we show this media manager's secrets and techniques (Jonathan Roberts)

Create your personal bootable pen force - whilst Android and MeeGo simply won't minimize it, subscribe to us in unleashing the entire strength of your Linux laptop anyplace you move (Bob Moss)

Android: the place am I? - Smartphones assist you get mapping and placement information at the circulate. learn on for the lowdown at the Android Maps API (Juliet Kemp)

Code strategies: development courses - discover ways to holiday difficulties into practicable chunks, as we aid you layout a courses (Jonathan Roberts)

Modern Perl: construct an internet app - Dancer is a Perl framework for development internet functions. we find it's an effective way to extend an easy analyzing record software (Dave Cross)

Python: Menus and toolbars - deal with your interface code the best way that works right for you (Nick Veitch)

Blender 2.6 - The 3D content material creations suite will get a massive replace. The strangely lively Graham Morrison discovers if that make sit down any much less difficult to take advantage of (Graham Morrison)

Scriviner - Scribbler Andrew Gregory unleashes his internal Bernard Cornwall with a note processor and venture administration app for writers (Andrew Gregory)

Oracle Solaris eleven - Graham Morrison wonders even if this is often the top or a brand new starting for an OS that after threatened Linux (Graham Morrison)

OpenSUSE 12.1 vs Fedora sixteen - the 2 major contenders for the RPM-based distro crown pull on their gloves and clamber into the hoop (Shashank Sharma)

Voxatron Alpha - This Minecraft-inspired arcade shooter seems appealing within the demos. Jonathan Roberts reveals out if it's as a lot enjoyable to play (Jonathan Roberts)

Roundup: company Distros - We positioned CentOS, ClearOs, Ubuntu Server, Debian and Zentyal to the attempt (Shashank Sharma)

News: Barnes & Noble returns hearth in patents conflict - ecu fee talks tricky on patents, Ubuntu dumps CDs, Raspberry Pi unearths ultimate recipe and our Qt Developer Days convey file (Andrew Gregory)

Distrowatch: A Slackware dog - Starring dog Linux 5.3 Slacko in remarkable new form, in addition to blackPanther 11.1 and Finnix 103 (Susan Linton)

What in the world: UEFI - a brand new boot interface which may cease Linux booting sooner or later (Marco Fioretti)

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Nginx Essentials

Excel in Nginx speedy by way of studying to exploit its such a lot crucial beneficial properties in real-life applications

About This Book

  • Learn tips to organize, configure, and function an Nginx set up for daily use
  • Explore the great beneficial properties of Nginx to control it like a professional, and use them effectively to run your website
  • Example-based consultant to get the simplest out of Nginx to lessen source utilization footprint

Who This e-book Is For

This booklet is perfect for experienced net masters and placement reliability engineers who are looking to swap to Nginx or solidify their wisdom of Nginx. wisdom of Unix and webmaster talents are required.

What you'll Learn

  • Get begun with an Nginx deploy from scratch in numerous environments and customise it in your purposes
  • Start and forestall a easy Nginx install, observe the fundamentals of procedure administration, and how you can organize Nginx to serve static data
  • Create highly-maintainable configuration documents to accomplish the main serious Nginx upkeep tasks
  • Set up Nginx as a opposite proxy and learn how to use the Nginx caching feature
  • Discover easy methods to enjoy the Nginx rewrite engine and the way to take advantage of entry regulations in Nginx
  • Use a variety of Nginx beneficial properties to regulate inbound site visitors and know how to take advantage of Nginx load balancing and fault tolerance features
  • Understand complex feature-independent functionality tuning options and optimizations
  • Manage inbound and outbound site visitors and configure entry control

In Detail

Nginx is an open resource and cross-platform opposite proxy server designed for low reminiscence utilization and excessive functionality and concurrency.

This ebook presents either easy and in-depth wisdom that can assist you successfully clear up demanding situations with Nginx, or conveniently struggle through a transition interval while switching to Nginx.

Starting with the fundamentals, you'll study by way of instance the way to organize, configure, and function an Nginx install and use beneficial properties of Nginx to elegantly resolve demanding situations you adventure on a daily basis whilst working your site. you'll learn how to use the rewrite engine to resolve day by day initiatives and have the ability to configure entry regulations in Nginx. additionally, you will have the ability to deal with inbound site visitors utilizing a few Nginx beneficial properties and use Nginx for load balancing and fault-tolerance gains. eventually, you are going to how to resolve universal functionality difficulties and practice a couple of performance-tuning strategies.

Through effortless exploration of the main problematic issues, this publication goals to convey you to the subsequent point on your Nginx experience.

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Version Control with Subversion

By Ben Collins-Sussman

Written through participants of the advance group that keeps Subversion, this can be the reliable consultant and reference handbook for the preferred open resource revision keep an eye on expertise. the recent version covers Subversion 1.5 with an entire creation and guided travel of its functions, besides most sensible perform recommendations.

Version keep watch over with Subversion comes in handy for individuals from a large choice of backgrounds, from people with no earlier model regulate adventure to skilled process administrators.

Subversion is the best device to trace person alterations whilst numerous humans collaborate on documentation or, fairly, software program improvement tasks. As a extra robust and versatile successor to the CVS revision keep an eye on approach, Subversion makes existence quite a bit easier, permitting every one group member to paintings individually after which merge resource code alterations right into a unmarried repository that retains a list of every separate version.

Inside the up to date variation model keep an eye on with Subversion, you will find:

  • An creation to Subversion and simple suggestions in the back of model control
  • A guided travel of the features and constitution of Subversion 1.5
  • Guidelines for fitting and configuring Subversion to regulate programming, documentation, or the other team-based project

  • Detailed assurance of advanced issues equivalent to branching and repository administration
  • Advanced positive factors akin to homes, externals, and entry control
  • A consultant to most sensible practices
  • Complete Subversion reference and troubleshooting guide

If you have by no means used model regulate, you will find every little thing you want to start. And if you are a professional CVS professional, this booklet may help you're making a painless jump into Subversion.

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Learning Apache Cassandra - Manage Fault Tolerant and Scalable Real-Time Data

Key Features

  • Learn the way to set up and use Cassandra from the floor up
  • Design wealthy schemas that trap the relationships among various facts forms utilizing compound basic keys
  • Master the complicated beneficial properties to be had in Cassandra 2.0 via a step by step educational that builds a real-world application's database layer.

Book Description

Cassandra is a allotted database that stands proud for its powerful characteristic set and intuitive interface, whereas nonetheless offering the excessive availability and scalability of a dispensed store.

Starting from fitting Cassandra and growing your first keyspace, to getting to know the various desk buildings Cassandra bargains and exploring the newest and strongest good points of the Cassandra question Language, CQL3, this publication explores each one subject in the course of the lens of a real-world instance program. With lots of examples, information, and transparent causes, you are going to grasp compound fundamental keys, assortment columns, light-weight transactions, and lots of different complex elements of Cassandra.

By the tip of the e-book, you will be absolutely built to construct strong, scalable Cassandra database layers in your applications.

What you are going to learn

  • Install Cassandra and create your first keyspace
  • Choose the correct desk constitution for the duty handy in various scenarios
  • Use diversity slice queries for effective information access
  • Effortlessly deal with concurrent updates with assortment columns
  • Ensure facts integrity with light-weight transactions and logged batches
  • Understand eventual consistency and use the fitting consistency point on your situation
  • Implement most sensible practices for information modeling and access

About the Author

Mat Brown is a certified software program engineer in Brooklyn, manhattan. In his occupation, he has interested by development consumer-facing net and cellular purposes for numerous businesses; he at the moment works at Genius.

Table of Contents

  1. Getting up and operating with Cassandra
  2. The First Table
  3. Organizing comparable Data
  4. Beyond Key-value Lookup
  5. Establishing Relationships
  6. Denormalizing facts for optimum Performance
  7. Expanding Your information Model
  8. Collections, Tuples, and User-defined Types
  9. Aggregating Time-series Data
  10. How Cassandra Distributes Data

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