Linux Seminar for Beginners

Mr. Ritesh Ambastha
02-02-2012

Who uses Linux?
Apps Hits/Views

Apache, Python, SuSe Linux,
YouTube 1 Billion
MySQL, lighttpd
Apache, PHP, MySQL, Redhat
Flicker 4 Billion
Linux, Squid, Memcache
Redhat Linux, perl, C++, JAVA,
Amazon 55 Million
Jboss
900 User per
Twitter Ruby, MySQL, Memcache
sec
Google Linux, Python, C++, JAVA 5 Billion

Success Stories

● More than 98% of all Domain Name Servers, which identify the machine
on which a web page is situated, use free software called BIND.
● More than 80% of all web servers use free software, called Apache, to
serve their sites.
● More than 60% of all network servers run the Linux Kernel, another free
software.
● The TCP/IP implementation on most computers, (including those
running non-free operating systems) is free software.
● “Digital Domain used 105 DEC Alphas running RedHat [GNU/]Linux to
simulate and render water for James Cameron's Titanic. Other Movies:
Avatar – 2PB disk, 35000 Cores, 4000 Blades – Ubuntu, kungfu panda,
Lords of the ring, Harry porter ........

Who uses Linux?
Sectors Abroad India
Finance & Banking Morgan Stanley, New HDFC, Axis, SBI Life, India Bulls,
York IDBI, Canara, LIC
Stock Exchange, CITI,
Reuters

Retail & E-Commerce Amazon.com, Papa IRCTC, ClearTrip, JustDial ,
John's, Naukri.com,
Tommy Hilfiger

Govt Air Force US, Govt of Maharashtra, Kerala, AP
Department of and
Energy, Dept. of others on various e-commerce
Defence, US Postal projects,
Service ePosts by Dept of Posts

Technology & Google Reliance ADA Data Center,
Communication VSNL, Airtel,
TATA Communications

Ecosystem Overview
● Server
● Mobile
● Web
● OS
● Database
● Apps
● Programming Languages
● Hardware

Chronicle
●Free Software Foundation Started by Richard Stallman
in 1984, Creates GNU

●1991 Linux Created by Linus Torvalds based on Minix,
released under GNU GPL.

1998 , Eric Raymond Starts Open Source Initiative,
●

which slight changes in the Free Software Philosophy.

●Till Date, Open Source + Free Software comprise of big
chunks of operations by Big Companies Like Google ,
Yahoo , Sony , Texas Instruments

OSS: Definition

Open-source software (OSS) is computer software
that is available in source code form for which the
source code and certain other rights normally
reserved for copyright holders are provided under
a software license that permits users to study,
change, and improve the software.

The license has to comply to the Open Source
Definition given by Open Source Initiative (OSI).

Free Software??

● Free Software Refers to the software that provides the following
freedoms :
● The freedom to run the program, for any purpose
(freedom 0).
● The freedom to study how the program works, and
change it to make it do what you wish (freedom 1).
● The freedom to redistribute copies so you can help your
neighbor (freedom 2).
● The freedom to distribute copies of your modified
versions to others (freedom 3).

Commercial Open
Source
● Red Hat Enterprise Linux
● Suse Enterprise Edition
● OpenExchange Enterprise
● Xtuple ERP
● Landscape
● Dim Dim
● Star Office

Business Models

● Support and Service Models (Ubuntu)
● Free and Enterprise Versions (MySQL,
Red Hat)
● SaaS model (Dim Dim)
● Products around Open Source (Amanda -
MySQL, Ubuntu – Landscape )

You

Participating in Open Source
Projects

Community?

● People bound by common goals
● Common Philosophy
● Different levels and kinds of expertise
● Technical , Non - Technical

How You Can
Contribute
● Development
● Testing
● Review
● Packaging, Release Management
● Manage Teams and Project Management
● Manage Communication
● Write Documentation
● Advocacy

Examples

● Linux – Ubuntu , Fedora , Debian, Slackaware
You can Learn C, C++,Python,
MediaWiki,Perl,Qt
● Firefox – Javascript , XML
● MySQL – C, C++
● Apache Server – C ++
● Android – Java

SourceForge

● SourceForge is a web-
based source code
repository. It acts as a
centralized location for
software developers to
control and manage open
source software
development.

FreshMeat.net

● Freshmeat is a website that allows computer users to keep track of
the latest software releases and updates as well as write/read
reviews and articles, send or receive comments to or from the
author, and many other features.
● Programmers register their projects and inform the site about
updates; users browse for software and download and (sometimes)
rate or comment on the software.
● Software is categorized by field of application, license, development
status, environment, intended audience, type of use, supported
operating systems, and used programming and available natural
languages.

EduForge.org

● Open Source Learning Lab
● Eduforge is a virtual collaborative learning and exploratory
environment designed for the sharing of ideas, research
outcomes and information about open source.
● It is an open access environment allowing anyone with an
interest in open source software to join the community.
Eduforge also provides the Open Source Learning Lab to
provide training for open source practitioners through a
100% online delivery model.

The Linux
Documentation Project

● http://tldp.org/
● LDP is a loosely knit team
of volunteers who provide
documentation for many
aspects of Linux. There are
several forms of
documentation: Guides,
HOWTOs, man pages, and
FAQs.

Copyleft

● Common practice for using copyleft is to codify the copying terms for a work
with a license.
● Any such license typically gives each person possessing a copy of the work
the same freedoms as the author, including (from the Free Software
Definition):

● the freedom to use the work,
● the freedom to study the work,
● the freedom to copy and share the work with others,
● the freedom to modify the work, and the freedom to distribute modified
and therefore derivative works.

Copyleft

● Copyleft says that anyone who redistributes the software, with or without
changes, must pass along the freedom to ruther copy and change it.
● If they do not, they lose their rights.
● As Stallman puts it, “Copyleft guarantees that every user has freedom, and
ensures that somebody does not remove the freedom from free software.
●
“Proprietary software
According to Free Software Foundation,
developers use copyright to take away the
users freedom; we use copyright to guarantee
their freedom. That's why we reverse the name,
changing 'copyright' into 'copyleft'.”

GNU GPL

● GNU General Public License
● The strongest copyleft and most widely used free software
license is the GNU Genral Public License, or GNU GPL for
short.
● Using the GNU GPL will require that all the released improved
versions be free software. This means you can avoid the risk of
having to compete with a proprietary modified version of your
own work.
● http://www.gnu.org/licenses/gpl-faq.html

Creative Common
License
●Attribution. You let others copy, distribute, display, and perform
your copyrighted work — and derivative works based upon it — but
only if they give credit the way you request.
●Noncommercial. You let others copy, distribute, display, and
perform your work — and derivative works based upon it — but for
noncommercial purposes only
●No Derivative Works. You let others copy, distribute, display, and
perform only verbatim copies of your work, not derivative works
based upon it.
●Share Alike. You allow others to distribute derivative works only
under a license identical to the license that governs your work.

Certifications
● The CompTIA Linux+ certification
● Linux Professional Institute (LPI)
● Novell offers three certifications: Certified Linux
Professional (CLP), Certified Linux Engineer (Novell
CLE), and Certified Linux Engineer9 (Novell CLE9).
● Red Hat has developed its Red Hat Certified Engineer
(RHCE) to certify individuals on its core Enterprise
operating system. In addition, it also has the Red Hat
Certified Technician (RHCT) and Red Hat Certified
Architect (RHCA) certifications available

Me ?
● Update every single piece of software on my system with a single action.
● Uddate nearly everything on my computer without a reboot.
● Keep my system secure without software that consumes my system resources,
requires my time, and frequently nags me.
● Run an entire operating system for free without pirating software, and without
breaking the law.
● Take my settings with me where ever I go.
● Understand everything(or few things) that is going on in my computer.
● Customize every aspect of my desktop.
● Benefit from competition between projects for each system on my computer.
● Run thousands of great pieces of software that only run on Linux.
● Learn about, support, and appreciate the value of free software.

What Next?

● Download Fedora or Ubuntu
● http://fedoraproject.org/
● http://www.ubuntu.com/
● Don't install – Run on CD/DVD
● Install once you get used to the system
● Ask us questions

Queries

Ask questions at -

http://www.iwillstudy.com/group/ubuntu

http://www.iwillstudy.com/group/linuxgroup

Linux Seminar for Beginners

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