There is more to Linux than you might know Date: 04 th April 2011

1 Linux It is just a kernel. Full OS: 1,5 - 3 % Linux, 15 % GNU and 80+ % everything else. GNU/Linux OS more than 15 years in market.

2 Open, free, gratis – Closed, proprietary, paid Free as a speech and free as in beer. Open source and commerce are fully compatible. Open source is a possibility to verify and improve. Proprietary code is a Black Box - it is either working or not. Proprietary code is not sold, it is licensed by vendor only to run.

3 Information and freedom of speech, program patents ACTA, DMCA and other tools for monopoly protection. "Those who do not want to imitate anything, produce nothing." (Salvador Dali) Users starts to loose rights to use physical things they have bought. Copyright and patents not always dependant. New technologies are judged by patent system, older than 200 years. Patents are the cold nuclear war of an IT sector. Patent trolling.

4 Get the facts Linux is cheap. Linux is easy. Linux is secure. Linux is stable and reliable. Linux is widespread and universal.

5 Get the facts: Linux is cheap Linux pricing starts from 0. TCO of Open Source systems is 19 to 36 % cheaper than Windows. (2004 Cybersource research). Microsoft end user product support prices during work hours: Lithuania: 499 Lt/hour + 21% VAT. UK: 45 or 185 pounds + VAT per incident. Canonical support for Ubuntu Linux Desktop: UK: 89 pounds per year.

6 Get the facts: Linux is easy It is just another OS providing similar functionality. It you know how to drive a car it should not matter on which side the steering wheel is. Most likely it is available in your native language. Almost everything is documented. As you can poke inside there are comments too!

7 Get the facts: Linux is secure Commercial "Linux" systems gets EAL4 certification. Methodically Designed, Tested, and Reviewed. Properly designed system remains secure when everything about the system but the keys to the system itself is known. (Kerckhoffs' security principle) Information about flaws emerges and are patched faster. That’s due to the nature of open source. If you know, you can always do it by yourself if vendor is slow to turn.

8 Get the facts: Linux is stable and reliable Since the year 2004 RedHat remains among vendor trust top 3 list. (CIO Insight Vendor Value 2010) Linux is trusted by biggest companies such as: NYSE LSE Amazon.com Google Virgin America DreamWorks GENIVI Nonprofit industry alliance with founding members BMW Group, Delphi, GM, Intel, Magneti-Marelli, PSA, Visteon and Wind River

9 Get the facts: Linux is widespread and universal Linux is much more than a simple desktop. Servers Depending on what is counted and how (sales, units): from 16 to 74 %. Supercomputers: 91,8 % Small computer appliances and external peripherals SOHO routers. Internet PC's. Home electronics Samsung, Philips TV's. GPS devices. Media players. Phones: WebOS and Android uses Linux too. In total: from 5 to 44 proc.

10 Linux Myths Complex and user unfriendly Secure Panacea to cure all diseases Incompatible It is just for enthusiasts

11 Linux Myths: Complex and user unfriendly As any other OS Requires lots of time to master, double time to relearn. Human have to think and machine have to work. Not vice versa! Linux is not a Windows replacement Alternative and replacement is not the same. BMW is a replacement for Mercedes. Linux is very user friendly It just Linux carefully chooses, who it wants to befriend with.

12 Linux Myths: Secure If you mess with a thing long enough, it will break. (Schmidt's law) Bad practices lowers security. Habit to work with root privileges. Absence of passwords or usage of primitive passwords. Do not update or patch the system. I'm using secure OS / I'm too small to be interesting. Damn Vulnerable Linux - as an extreme example of insecurity.

13 Linux Myths: Panacea to cure all diseases Lots of Linux distributions are still less than number of problems. One in seven companied responded that fulfillment of cost savings for open source systems, including Linux, was below their expectations. (2005 CIO Insight and Forrester Research data) It is not uncommon that migration is harder and takes longer than planned. Munich city migration to Open Source: workstation migration to OpenOffice: completed in period workstation migration to Linux: in period only 3000 are migrated.

14 Linux Myths: Incompatible Most of the brand name hardware works with Linux Linux rarely drops support for older hardware Linux can use Windows resources more often than otherwise

15 Linux Myths: It is just for enthusiasts Do you still think so?

16 Linux Questions?