Convention programme – keynotes

Convention part (keynotes) will be held at Hotel International, Miramarska 24, Zagreb, Croatia, Europe

First day, May 15th 2013

Opening of the convention, Intro talks, Open informatics award, Ivan Guštin, Svebor Prstačić

Abstract: Svebor and Ivan will be giving formal greetings to convention’s attendees, opening of the convention, Open informatics award to individuals and communities for great achievement and prolific work in FLOSS world for the year 2012.

 President’s of Croatia Greeting keynote, prof. Ivo Josipović

Interoperability, Enterprise Architecture and Public Procurement, Karel De Vriendt

Karel De Vriendt worked twenty five years (1987-2012) as an IT expert for the European Commission. From 2005 to 2011, he was leading the team responsible for the implementation of the IDABC programme and for the definition and implementation of the ISA programme. He was actively involved in initiatives such as the transeuropean network TESTA, the Open Source Observatory and Repository (OSOR) and the Semantic Interoperability Centre Europe (SEMIC) now both merged into Joinup and in the elaboration of the European Interoperability Strategy and the European Interoperability Framework. During his career, he also acquired a good practical experience in the public procurement of IT goods and services.

Karel De Vriendt is now retired but has kept his interest in improving (computer based) public services via the collaboration between public and private partners and via the sharing and re-use of software based service components. He also remains a big supporter of open standards and open source software as essential elements to support collaboration, sharing and reuse.”

About Croatian work group for open source and open standards implementation

Darko Parić, Kristijan Zimmer,


 All watched over by machines of loving grace?

Karsten Gerloff, Free software foundation Europe

Abstract: Computers are woven into the fabric of our daily lives. They are the machines we use to create knowledge, they let us talk and write to each other, they are the cars, trains and planes that we use to move around. Computers are so tremendously useful because they are general purpose machines. We routinely use them to create and do things that the people who built them never dreamed of. Yet we are in the middle of an intense battle for control of these computers. Corporations are busy turning general purpose computers into mere shopping devices. Instead of choosing our destiny, we only get to choose our masters.
It doesn’t have to be this way. Are we heading for a world of corporate surveillance, where our choices will be bought and sold? Or are we going to create a world where we live in freedom and take charge of our lives?

Biography: Karsten Gerloff is the President of the Free Software Foundation Europe. FSFE’s mission as an independent not-for-profit organization is to promote freedom in the information society through Free Software.

Karsten Gerloff works together with developers, activists, business leaders and high-level political decision makers in order to create an environment where Free Software can reach its full potential. He leads FSFE’s participation in community and policy processes at the European and global level, and is a frequent speaker at a wide variety of conferences and events.

Karsten Gerloff has conducted extensive research on the economic and social effects of Free Software for the European Commission and other clients, and has led the development of training materials for Free Software entrepreneurs in Southern and Eastern Africa.

FSFE Legal and the Legal network: What we do and how can we help you?

Matija Škulje, Free software foundation

Abstract: There are all sorts of legal questions that can arise from Free Software -from licencing and copyright assignment to linking and even more complex issues. These do not only annoy hackers, but sometimes also baffle lawyers and businesspeople.

Luckily there are organisations like FSFE and its legal department which helps individuals, government agencies, businesses as well as the community at large to understand and solve such issues. FSFE Legal also facilitates the Legal Network – the world’s premier network of legal experts in the field of Free Software.
The talk will provide an overview over FSFE Legal, how it operates, what it
does and most importantly, how you can reach it to help you. Also it will
include an introduction of the Legal Network and why it is important for
the community.

Biography: Matija Šuklje has been using free software since 1998 when he got his first user account on a computer running GNU/Linux. Ever since then he has been more and more involved in the community od free software as an active member of non government organizations and projects. He also writes articles about OSSR (open standards, systems and solutions) in a work group led by Slovenia’s government informatics centre. He is a representative of Slovenian Linux users’ group in front of the Slovenian institute for normization of open standards.

Matija Šuklje is currently employed as Legal Department Coordinator  in FSFE  and he is near the end with his law study at Law College, University of Ljubljana, Slovenia.

Lightning talks – presenting open source communities in Croatia

Free and open source technologies became (as they say it at Linux Foundation) global project. We can freely add many global projects. Every day thousands and thousands of volunteers contribute to those projects with their indomitable will and effort. In Croatia there are also volunteers who are doing exactly the same. Some of them will present themselves  at the convention:  Linux za SveUbuntu Hrvatska, Sustavi otvorenog koda, Open Street Map Hrvatska, Slobodan Softver Hrvatska, …. Maybe there will be more of them… This is an unique opportunity to meet them, network with them and maybe join them in order to gain new colleagues and increase your experience in free and open source world.

Round table: “Internet of things”

 Moderator Milan Rajačić

Sponsor’s keynote from IBM – Linux on Z-series

Ivan Turčin

Two times more for half of a less in public IT,

Marko Rakar, Association Windmill

Abstract: Marko will give his point of view on a current state of IT in public sector and suggest possibilities of expanding, consolitation and optimization of software and hardware.

Biography: Marko Rakar is president of a small Croatian NGO called Windmill. Marko has a lifelong experience in working/writing for media as well as dealing with the media. He combines his media knowledge with new technologies and was one of the earliest internet adopters in Croatia. He is a recognized lecturer and consultant on the subjects of organizing, the internet, new media as well as politics. He has run a number of successful campaigns and races for organizations, parties and independent candidates on presidential, parliament and municipal elections in Croatia, Europe, Asia and the US. His speciality is new and social media, as well as data transparency and open governance. Marko studied Philosophy and Information sciences at the University of Zagreb, speaks English fluently and is regular columnist and author to a number of blogs, web sites, newspapers and magazines in Croatia and internationally.

Digital compenetncies of teachers and students, 

Zoran Babić and  Mila Kokotović, First economy high school Zagreb, Elementary school Trnsko

Keynote abstract: Babić and Kokotović will demonstrate project “Free and open systems in education in order to develop digital competencies teachers and pupils of elementary schools”. This project is under Agency for pedagogy and education and HrOpen’s umbrella. During the demonstration will be presented goals and reasons of mentioned project, and first results.

Biography of Mila Kokotović: Kokotović is a teacher of class education and Informatics at elementary school Trnsko. She has been working as an Informatics lecturer at privately held Informatics centre Infokatedra. Kokotović is the author of: Matematika ništa strašno 1 i 2, Hrvatski ništa strašno, Priroda priča. She is the coauthor of Informatics book for elementary school “Klikni mišem”. She is the founder and lead editor at magazine Kloks meant for elementary school pupils. Kokotović was at european teachers congress “Innovative teachers Forum 2005” held at Stockholm where she presented her Informatics book for elementary schools “Klikni mišem”. She also presented that book at Carnet users conference 2006. and 2007.

Biography of Zoran Babić: Zoran Babić is a professor at first economy high school in Zagreb. He graduated at Faculty of organization and informatics in Varaždin. During his lectures at school he is trying to motivate students to use free and open source software. Not only in school but in his daily life as well. Also, he has been actively spreading the good FLOSS wibes among his fellow teachers. Babić has been cooperating with Agency for pedagogy and education. Besides Informatics Babić has been involved very sucessfully with design and music.

GitHub – About company and selling to tradional companies,

Alex Malinovich,Vlado Herman, GitHub

Keynote abstract: We will talk about how we have worked with selling our software to old-fashioned businesses and how software is changing the environment.


Vlado Herman: Mr. Vlado Herman currently serves as Chief Financial Officer of GitHub, previously he served as the Chief Financial Officer of Yelp, Inc. from November 2006 to July 2011. Mr. Herman joined Yelp in December 2006 as Director of Finance and was promoted to Vice President, Finance and Administration in 2007. He held several roles at Yahoo, most recently as Senior Director of Operations Finance for the Search & Marketplace business unit. In addition, he has held finance & accounting roles at Intel Corporation, Ernst & Young LLP and UnocalCorporation. Mr. Herman holds an MBA from the Marshall School of Business at the University of Southern California and a B.S. in accounting from California State University, Northridge.

Accessibility revisited – new interfaces and new challenges

Igor Švarc, Faculty of organization and informatics

Keynote abstract:  Several years ago Gnome was the only accessible DE for blind people and at-spi based on corba, at-spi1  was primary accessibility infrastructure, although at-spi based on dbus, at-spi2, started to prepair at that time as well.
When Gnome 3 came on scene it was the time for new accessibility infrastructure to use. This lecture tries to answer what are differences between both infrastructures? What we should adjust with at-spi2, and what we adjusted with at-spi1. Could at-spi2, bring other desktops to work –
e.g. kde or lxde?
This keynote also tries to address several distros for blind people and built-in versus bolted-on accessibility.

Biography: Igor Švarc holds Bsc in information technology. He is currently  working as a  temporary dba at Faculty of organization and informatics in Varaždin.

Second day, May 16th 2013


Breaking chains, building bridges: The Free Software Foundation Europe,

Karsten Gerloff, Free software foundation Europe

Keynote abstract: How can we bring software freedom to people who don’t have it? Since 2001, the Free Software Foundation Europe is building awareness for Free Software. We work with politicians to build a free information society, make good laws, and get rid of bad ones. We help Free    Software developers with their legal questions, and support lawyers        who want to learn about Free Software licensing.

Whether winning a record fine against Microsoft or convincing public bodies to stop advertising proprietary programs, FSFE makes a real-world impact. Together with our sister organisations in the US, Latin America and India, we drive the further development of the Free Software philosophy. We can do all these things thanks to many passionate, dedicated staff and volunteers. Find out how you can work with FSFE and its allies to take your Free Software activism to the next level.


Building a successful Enterprise Opensource product: eZ Publish CMS as an example

Ivo Lukač, Netgen

Keynote abstract: There is a very narrow space between companies building traditional closed source products and communities building free open source products. In that space you can find a limited number of companies building products the open source way and providing enterprise
services and support in sustainable way. It is not easy to achieve it, thus not many companies do it successfully, but it is possible. eZ Systems from Norway, with its flagship product ez Publish, is an example of a company building enterprise product on top of an opensource community.

Biography: Co-founder of Netgen web agency, leading web projects based on eZ Publish CMS, organizing eZ Publish Summer Camp, had numerous presentations and talks at all eZ conferences from 2010. Awarded as a eZ Community blogger of the year 2011.

Opensource in the .NET ecosystem

Nikola Stjelja, Penta Id Sistemi

Keynote abstract: The Windows and .NET worlds have a long time standing tradition of rejecting any opensource or other non Microsoft accredited technologies. In the later years this trend has been changing. More and more open source projects are written for the .NET/Mono platform event including Microsoft provided technologies like Entity Framework or ASP.NET MVC. Now the current state of technology often includes several mandatory open source projects in any .NET solution. This talk will give a quick overview of available .NET open source projects for related to various project tasks (web frameworks, unit testing, logging, mocking, inversion of control and etc). It will also give guidelines how to introduce and utilize open source technologies in .NET environments which are not yet used to the world of open source.

Biography: Nikola Stjelja is a long term software engineering enthusiasts. He currently works as a Software Architect at Penta Id Systems and has had a varied carrier in outsourcing, working primary as a technical lead and architect on many projects in different programming environment utilizing both proprietary and close source technologies. You can find more on his blog : http: //

MooseFS – Distributed File System

Bojan Mrkobrad, Altus d.o.o.

Keynote abstract: MooseFS is a distributed (fault tolerant) network data file system. In Altus d.o. We have built cluster based on MooseFS, KVM hipervisors and OpenNebula as a set of tools for management of distributed and virtualized platform. In this keynote will be pointed out concepts and possibilites that MooseFS DFS brings along. There will also be shown structure of our cluster and utilization examples. Goal of this keynote is to show how can you create a big capacity storage in short amount of time with small budget that will satisfy your needs by only using open source software and regular server with SATA disks.

Biography: Born 1970 in Bjelovar where I finished primary and secondary
school. Graduated in 1997 at Faculty of traffic sciences in Zagreb, Telecomunication course. Started to for Data Link company in the field od network tehnology implementation, industry automation and Linux embeded systems. From 2006 I have been working in Markoja d.o.o company as a Data Center manager. As company Markoja outsorced Data Center in a new company Altus d.o.o. I started to work there from 2011 as a technical board director. One of my narrow interests over the last three years is cloud services development (mostly IaaS), based on open source software: CentOS Linux, Open Nebula, QEMU-KVM, MooseFS, NoVNC, Open System , NMS, Zenoss…

 Red Hat storage

Igor Vuk and Vedran Živičnjak, Nimium

Keynote abstract: Brief demonstration of Red Hat storage as an alternative for current NAS storage systems whether as an “on premise” solution or as a part of public and hybrid cloud. We will show you components that Red Hat storage is consisted of, its architecture and personal experience gained during the work with Red Hat storage server.

Biography of Igor Vuk and Vedran Živičnjak: Vedran and Igor are both employees at Nimium company, the only company from Croatia that is Red Hat premier’s partner. They are both owners of RHCE and VCP. In free time the love to work with variety of software and hardware.

MySQL- cluster is web scale

 Nenad Merdanović, Crossvallia

Abstract: \”70x Higher JOIN Performance\”, \”99.999% availability\”, \”17.6 million queries per second\” – Anyone reading this might wonder – is this a 10 million dollar software product available only to Google, running on thousands of servers? Actually, this is MySQL-cluster using NDB engine in it\’s latest version. And it is open source. Before you start running with a big smile on your face screaming down the hallway: \”I am moving the whole infrastructure to MySQL-cluster\” take a step back, drink a beer and wait for all myths to be debunked on DORS/CLUC 2013.

Biography: Graduate student at FER, working as a deployment manager/system administrator at Crossvallia. Open source and BSD fan, working on Linux for a living. Certified MySQL hater with extensive experience in hating it. Interest include computer networks and highly scalable open source deployments.

CARNet: sys.backup

Branko Radojević, CARNet

Keynote abstract: CARNet has been connecting institutions (scientific and academic) for almost 20 years. Of course in a computer networking context. Besides that, CARNet is providing development development and maintenance of certain Internet services. One of the first CARNet’s assignments was to organize basic Internet services at CARNet member institutions. What always presented the challenge on mentioned institutions is backup. CARNet therefore decided to offer centralized solution for its member institutions using the same infrastructure and free and open source software. That way you basically have a service which has been created with minimum investment and which can be used even better than services that CARNet’s member institutions are using now, especially within critical information services.

Biography: Branko Radojević in a role of CARNet’s director assistant has
been woring for quite some time in the field of computer and data infrastructure. He is the author of many CARNet’s services. Among them is sys.backup which will be presented at the convention. Radojević holds Msc from Columbia Southern University and he is currently finishing his doctoral
study at Faculty of electrical engineering and computing in Zagreb. Radojević has been actively working on several european projects where it is important to point out GEANT3+ where he leads cloud computing work group.

How do we test MediaWiki, software that runs Wikipedia?

Željko Filipin, WikiMedia Foundation Inc

Keynote abstract: Software that runs Wikipedia[1], MediaWiki, has been developed openly as Wikipedia. This keynote’s accent is on how MediaWiki has been tested and with which success and failure have we met during testing.
Kod[3] and Jenkins[4] are also open. Only one file with passwords is hidden. If you are interested in cooperation I will show you how to get involved.[2] I will also mention a lot of tools that we are using: page object[5] Git[6], Ruby[7], RVM[8], RubyGems[9], Cucumber[10], Selenium WebDriver[11], Watir[12], Bundler[13], page-object gem[14], RubyMine[15], Jenkins[16], CloudBees[17], Sauce Labs[18] and maybe few more. I think that it is important to have several open access test automation projects for open source projects and this is our contribution.[1]:

Biography: Željko Filipin has been testing software since 2004. He is a specialist for browser automation. Tools that he has been using every day are Ruby, Selenium and his brain. He currently works for Wikimedia Foundation Inc where he tests WikiMedia, software that runs Wikipedia.

How to solve MySQL problems with 5 Percona Toolkit tools

Hrvoje Matijaković, Percona

Keynote abstract:

  • During this keynote will be shown how to solve some usual problems with MySQL using Percona Toolkit:
  • How to choose and findy queries which should be optimized
  • How to efficiently archive data
  • How to check consistency data during replication and how to turn replication back to consistency state
  • How to collect data for problem analysis in the moment when that problem occurs
  • How to execute ALTER TABLE on big tables without down time

Biography: Graduated at Faculty of organization and informatics. Worked
as Linux sysadmin, database developer, database admin for big web-hosting companies.

 Puppet- resource management automation

Jakov Šošić, SRCE

Keynote abstract: How to avoid monotone circle of: program installations, configuration file configurations, start of services, monitoring setup? How to become a determined engineer from a tehnician who is just banging on a console in a stealth manner? Or how to do a lot of work in a little period of time? No it is not a new slim fast diet commercial. Puppet really works and it is proven in a company where I work.

Biography: System engineer, Unix/Linux enthusist

Automate your car and  home with open source,

Marian Marinov, 1H ltd

Keynote abstract: In this talk Marian will show you how with a little coding you can make your own smart home. He has used Arduino + Raspberry Pi to control his lights, Air Conditioning, TV and multimedia. He will also show us his plans for Open Source car assistance technologies.

Biography: Marian is a System Administrator with more then 14 years of experience. He is Founder and CEO of 1H Ltd. – a software company providing server management and optimization software specifically for the needs of hosting providers. Marian is very keen open source supporter and regularly speaks at FOSS conferences in the Balkan region.
As Chairman of the board of Open Projects Foundation he is helping in the organization of OpenFest – Bulgaria’s biggest FOSS conference.In his spare time he is also part-time lecturer in University of Sofia, where he teaches Network Security and Linux System Administration. He is a regular speaker at DORS/CLUC.

GNU/Linux on ARM for 50-100 USD

Dobrica Pavlinušić, HULK

Keynote abstract: Over the last year Linux on ARM became solid alternative for little server tasks which everybody of us has at home (VPN, printer server, monitoring, led blinking etc…)
In this lecture Dobrica will try to point several of them, their advantages and disadvantages (especialy from real Linux perspective on them not Android) and share advices so you could decide easier do you need one of these devices and which one exactly.

Biography: Dobrica Pavlinušić is, as he likes to say for himself, Unix addict and Internet consultant. He has graduated at Faculty of organization and Informatics. His fields of interest include: Internet technologies, Unix, Linux, Free and open source movement (in sense of a freedom not price). He is a member of supervisory board of Croatian Linux Users’ Group and Croatian Open system Users’ Group. His main preoccupation is solving interesting problems by using free technology.

Vlatko Košturjak,Open closed code as well

Keynote abstract: The fact is that open source management systems are facilitating software development. However, with wrong implementation they can cause security problems especially when used for web applications development.

Biography: Vlatko is working at Diverto company as an information security consultant where he helps clients to achieve desired security level. Vlatko is specialiesd and certified in security area for: penetration testing, information systems security level enhancement, development and monitoring of ISMS based on international standards such as ISO/IEC 27001 and PCI DSS. Also, Vlatko is a certified Linux expert with rich work experience. During a decade of interest for Linux he gathered profound knowledge about Linux through its usage on different platforms from PDA to mainframe and he wrote numerous IBM Redbooks about Linux, free software and security. Vlatko has been actively conributing to development of open source software such as Snort, Metasploit, Nessus (GPL!), Nmap and OpenVas. Vlatko is a board member od Croatian Linx users’ association.

Security tips and tricks, part 0×01, Tonimir Kišasondi

Keynote abstract: In this lecture I will show a couple of tips and tricks on securing your servers and apps that use FLOSS software. This lecture will be focused on what you can do if you have some untrusted code (which by definition, is any code) or any other stuff that you have to run in your production. I hope this will prove to be useful for the attendees in the light of the recent rise in data compromises.

Biography: Junior researcher and head of Open Systems and Security laboratory at the Faculty of Organization and Informatics in Varaždin, Croatia. Likes to make and break stuff, not necessarily in that order, usually in the fields of information security and open systems.