introduction to foss
DESCRIPTION
TRANSCRIPT
An Introduction
to FOSS Uditha Bandara Ambassador – Fedora Project Infrastructure Team Member – Fedora Project Manager (Initiatives) - FOSS User Academia [email protected]
What is your favorite FREE SOFTWARE?
What is FOSS? • What does 'free' mean? • Does providing source make it Open Source? • Who makes FOSS? Why do they do it? • Is FOSS just for fanatics and hobbyists? • Can you make money with FOSS? • Does FOSS make for better software?
What is FOSS?
"Free software" is a matter of liberty, not price. To
understand the concept, you should think of
"free" as in "free speech," not as in "free beer"
Definitions
- Richard Stallman (FSF)
The word "free" in our name does not refer to price;
it refers to freedom.
• First, the freedom to copy a program and
redistribute it to your neighbors, so that they can
use it as well as you.
•Second, the freedom to change a program, so that
you can control it instead of it controlling you; for
this, the source code must be made available to you
What is FOSS? Definitions
- Free Software Foundation (FSF), Feb 1986
The FOSS philosophy Two major philosophies
• Free Software Foundation (FSF) philosophy
• Open Source Initiative (OSI) philosophy
The Four Freedoms • The freedom to run the program, for any purpose (freedom 0). • The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this. • The freedom to redistribute copies so you can help your neighbor (freedom 2). • The freedom to improve the program, and release your improvements (and modified versions in general) to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this.
- Richard Stallman (FSF)
Facets of FOSS • Some see it as a resource • Some see it as an ethical choice • Some see it as a technical choice • Some see it as the enemy • Some see it as just another type of software
What is FOSS for you?
Small Story…
Small Story cont…
Small Story cont… • Open recipe
• No cost for the recipe
• Recipe is licensed under General Public License (GPL)
• Anybody can make the drink, modify and improve.
Small Story cont…
http://www.wikihow.com/Make-OpenCola
FOSS: A Bit of history
FOSS: A Bit of history
“hacker” culture
Free Software
Foundation GNU/Linux
GNU?
Richard Matthew
Stallman or “rms”
Open Source
Initiative
GNU-GPL
Netscape
Navigator (1998)
The GNU Project • Announced on September 27, 1983 • Richard Stallman was the founder • GNU’s Not Unix • Initiated GNU OS development in January, 1984 • GNU OS’s Kernel gap was filled by the third party Linux kernel, built by Linus Torvalds ,1991
Handsome GNU Head Typical beard Smart-looking curly horns
Is FOSS free?
Is FOSS free? Let us consider it again…
• “free of charge”, to a certain degree it is true • But there are non-free FOSS (Free/Open Source Software) • Licensing cost may be there • Open Source • 99.9% of the time they are cheaper than proprietary software
What is Linux? • “Linux” was the name of the kernel created by Linus Torvalds.
• Unix-like Operating System
• Kernel; heart of an Operating System
• Runs on wide variety of hardware
• Nowadays Linux
Is Linux FOSS? • FOSS Kernel (http://www.kernel.org) , Licensed under GPL
• Lot of distributions with different components
• Some components may not be FOSS
GNU and Linux • Misunderstanding between Linux kernel and “Linux” • Linus Torvalds didn’t wrote whole “Linux” • “Linux” is only ~3% of the OS • Pure Unix-like OS was GNU • All the “Linux” based distros are modified versions of GNU
Evolution of Linux
Strong idea from Small Calculation
Software Copies Cost
Kaspersky Antivirus 50 $900
MS Internet Information Server 2 $0
MS Windows Server 2008 5 $19,995
MS Commerce Server 1 $12,333
MS ISA Standard Server 1 $1,499
MS SQL Server 1 $4,999
MS Exchange Standard Server 1 $1,299
Window 7 Professional 50 $14,950
MS Visual Studio 3 $3,237
MS Office 50 $23,950
Adobe Photoshop 2 $1,218
Additional Client Access License 30 $2,010
Total $86,390
Microsoft Solution Software Cost
Software Copies Cost
Linux Enterprise Server Distribution (CentOS 6.2) Any # $0
Apache (Web Server) Any # $0
Squid (Proxy Server) Any # $0
MySQL (Database Server) Any # $0
Iptables (Firewall) Any # $0
Sendmail/Postfix (Mail Servers) Any # $0
Qt SDK / GTK + (IDE & FW) Any # $0
GIMP (Graphics) Any # $0
Libre Office Any # $0
OSCommerce (c-Commerce suite) Any # $0
Total $0
Strong idea from Small Calculation
FOSS Solution Software Cost
Software Ecosystem
License Categorization
Re Licensing
AL LGPL/MPL GPL
Advantages of FOSS • Reduced duplication of effort • Building upon the work of others • Better quality control • Reduced maintenance cost
Visit, User & Learn
http://www.gnu.org http://www.opensource.org http://www.kernel.org http://www.fsf.org
Questions?
Thank you!