ARNES 2011 Conference (13. 4. 2011)


The ARNES conference brings together users in the areas of education, research and culture. Our aim is to provide current and relevant information from the fields of new technology, network services and infrastructure. The conference is aimed at a broad range of delegates, covering both user and systems aspects of the use of new technologies.


Plenary sessions (Hall A, Kompas hotel)

Registration (8.00–9.30)

ARNES 2011 conference opening (9.30–10.00)

A Berkeley View of Cloud Computing (10.00–10.45)

Anthony D. Joseph, Berkeley, CA

Anthony D. Joseph is Director of Intel Labs Berkeley, and a Chancellor's Associate Professor in Electrical Engineering and Computer Science at UC Berkeley. He is developing adaptive techniques for: cloud computing, distributed network monitoring and triggering, network and computer security, and security defenses for machine learning-based decision systems. He also co-leads the DETERlab testbed, a secure scalable testbed for conducting cybersecurity research. His principal field of interest is systems and networking: cybersecurity, datacenter architectures, mobile systems and networking, and overlay networks.

Cloud Computing, the long-held dream of computing as a utility, has the potential to transform the IT industry, making software even more attractive as a service and shaping the way IT hardware is designed and purchased. Developers with innovative ideas for new Internet services no longer require large capital outlays in hardware to deploy their service or the human expense to operate it. Companies with large batch-oriented tasks can get results as quickly as their programs can scale, since using 1000 servers for one hour costs no more than using one server for 1000 hours. This elasticity of resources, is unprecedented in the history of IT. In this talk, I will discuss key enablers for Cloud Computing and several barriers to adoption.

Cloud computing at ARNES (10.45–11.00)

Jernej Porenta, Arnes

Jernej Porenta has worked at ARNES since 2007, and heads the systems-application support group.

More and more of ARNES' services are based on cloud computing. Apart from virtual servers – which we offer as part of web hosting – in 2011 more demanding users will also have access to server hosting in the cloud, known by the abbreviation IaaS – Infrastructure as a Service (a commercial example is Amazon Cloud). Such solutions allow independent monitoring of the operation of individual servers, independent design of new instances, independent selection of operating system and increased disk capacity. Users will be able to use these services to meet temporary increases in data requirements, servers, to support education etc. Cloud computing solutions are usually charged on a processor-power and data-traffic basis, but one of the advantages of ARNES' solutions is that they are available free of charge to eligible users.

Coffee break (11.00–11.30)

How strong is your cloud? (11.30–12.00)

Gorazd Božič, Arnes

Since 1995, Gorazd Božič has been head of the SI-CERT security centre, which operates within ARNES. From 2000 to 2008 he was the head of the European group of CERT centres (Computer Security and Incident Response Team Task Force), while since 2004 he has been the Slovenian representative on the board of ENISA (European Networking and Information Security Agency).

Cloud computing is gaining in popularity due to the ease of use, scalability and economics. Outsourcing our data and applications undoubtedly has a clear security component, which is often overlooked. Are we still true owners of our data and what can we do if the cloud suddenly dissipates?

Safe on the Internet (12.00–12.15)

Jasmina Mešić, ARNES

Jasmina Mešić works at ARNES and is coordinator of the national programme for public awareness of information security, which in 2011 will operate under the name Safe on the Internet. She graduated in Media Communications at the Faculty of Electrical Engineering and Computer Science.

The Slovenian network incident response centre, SI-CERT, operates within ARNES, and coordinates notification of and responses to security problems in computer networks in Slovenia. In 2011, SI-CERT is also taking on responsibility for coordination of a national project to raise public awareness of information security. In conjunction with Slovenian Ministry of Higher Education, Science and Technology, the awareness project has been established for the long term and will cover a fairly wide area of information security problems. The initial phase of the campaign will therefore focus on the three most critical areas – web fraud, identity theft and Internet banking. The Safety on the Internet project addresses the widest Slovenian audience, with some content specifically targeted at small businesses using Internet banking and web stores.

Privacy in the Cloud (12.15–12.45)

Andrej Tomšič, Information Commissioner

Andrej Tomšič graduated with a master's degree in Information and Administrative Studies from the Faculty of Economics in Ljubljana. In 2002 he started working at the Ministry of the Information Society, where as a member of the eEUROPE+ 2003 Statistical Working Group he worked mainly in the area of information society metrics. He continued working at the Ministry of Higher Education, Science and Technology, and was involved in the Council of the SAFE.SI project and the Advisory Committee for Information Society Statistics. He has been a member of the following bodies of DG INFSO at the European Commission: eEUROPE +2003 Statistical Working Group, eAccessibility Expert Group, ENISA National Liaison Officer, eEUROPE 2005/ i2010 and Safer Internet plus Management Committee. He has been employed at the Information Commissioner since May 2006.

Public cloud computing services raise concerns in terms of personal data and privacy protection, which generally touch upon the questions of contractual processing of personal data, data security issues and transfer of personal data to third countries. The article examines these concerns and puts forward some mechanisms that could foster trust in public cloud computing services. Trust in public cloud services that are out of our direct control is fundamental for legal acceptability of such services and a key enabler for deployment in practice.

National Grid Initiative (12.45–13.15)

Borut Paul Kerševan, IJS

Borut Paul Kerševan is a doctor of physics and researcher in experimental particle physics. He works at the Department of Physics of the Faculty of Mathematics and Physics of the University of Ljubljana, where since 2009 he has been an associate professor of physics. He is involved in numerous research projects in the fields of experimental particle physics and grid technology. He is a member of the National Computing Board committee of the international ATLAS collaboration, and since 2007 has been the Slovenian representative on the WorldWide LHC Computing Grid Collaboration Board (WLCG). Since 2008 he has also been the coordinator of the international ATLAS collaboration for processing Monte Carlo simulations in the grid environment.

Progress in commercial processor development is edging supercomputers out of the field of high-performance computing systems and the constant development of networks means that clusters of servers are being linked into larger systems, out of which has developed the European infrastructure of the network computing grid, operated by the European Grid Initiative (EGI). The paper will present the operation of grid infrastructure and various types of clusters, and the benefits of uniform access via intermediate grid software within the Slovenian National Grid Initiative led by ARNES, which enables individuals and organisations in Slovenia to access the power of the European grid network.

Lounch break (13.15–14.30)

Identity management in Norway (14.30–15.00)

Lars Kviteng, UNINETT

I completed my education at the NTNU (Norwegian University of Science and Technology) and the BI Norwegian School of Management. I have ten years of experience working as an IT Project Manager. During the last four years I have been working on the Feide programme at UNINETT.

Feide is the Norwegian authentication and authorisation infrastructure for the education sector. Feide gives end users access to webservices with single username and password. The Feide Federation has been in operation for ten years, and today all universities and most university colleges in Norway are members of the Federation. Feide also covers primary and lower secondary schools. My presentation will focus on what the successful policies have been for Feide, and what the benefits have been – for home organisations, service providers and end users. I will also focus on how we are currently going about this, and then mention a few words about the road ahead.

Round table: Federated services in Slovenian Education (15.00–16.00)

Chair Davor Šoštarič, MVZT

First we had to remember many telephone numbers; today, our telephone's memory removes this burden. Then came PIN numbers, remembered through more or less successful mnemonic tricks. Now there are masses of passwords for access to numerous web and computer applications and services. At least where permission to use such applications and services is linked to a particular status (student, teacher, researcher, employee), there are special systems designed to help with this problem – to enable such applications or services to recognise from a single place that access and use are permissible. But are they actually used, and what do our education and research users actually gain from this? We will discuss this and investigate which world-class services are available, and what and how our organisations (e.g. universities, schools and research institutes) should do in their internal applications and services.

Coffee break (16.00–16.30)

End user services (Hall A, Kompas hotel)

Blogs and web-based file exchange (16.30–16.50)

Mitja Mihelič, ARNES

Weblogs or blogs allow you to effortlessly publish content online. You can easily adapt your blog and even use it as a website for an organisation or a project. Users create content, while ARNES ensures uninterrupted operation of the underlying infrastructure. More and more multimedia content is sent via email every day, and documents are also growing in size. Problems arise when such large files cannot be sent or received via email. To overcome these problems, ARNES has prepared a solution that will allow you to exchange large files with your colleagues and associates via a web interface, regardless of the configuration of their mail servers.

Upgrading virtual server and dynamic web service hosting (16.50–17.05)

Domen Zalar, ARNES

Web hosting of virtual servers and dynamic websites is one of the most popular of ARNES' services, with ARNES hosting the websites of more than 700 organisations. We regularly upgrade solutions, with many innovations scheduled for 2011. All servers are now based on the Centos 6 operating system and PHP 5.3, enabling installation of the latest applications, such as Moodle 2 or Joomla 1.6. Your web services can now support the IPv6 protocol, while access to your data can be enabled via the secure HTTPS protocol. We have significantly increased disk space and available internal memory. By the end of 2011, you should also be able to manage your server to some extent yourself via an intuitive graphical interface.

Multimedia innovations at ARNES (17.05–17.25)

Matjaž Batič Finžgar, ARNES

Multimedia content increasingly accounts for the bulk of Internet traffic. Storing it requires a fast and reliable server on which you can also control who can view the content. The ARNES video web portal enables you to store and play your recordings on the web, and enables automatic conversion to the appropriate format and the input of metadata in a form adapted to global search engines. You will also be able to transfer recordings of your H.323 conferences to the new server. Most importantly, for each recording you will be able to determine which individuals or groups can view the content. VOX web conferences have had design and functional upgrades last year. As well as new functionality, such as the use of conferences on smartphones and an updated web interface, we will also present the possibility of editing your videos via a web interface.

Environment for constructivist cooperative learning using cloud infrastructure (17.25–18.10)

Andrej Brodnik, Mojca Ciglarič, Andrej Krevl, FRI, Jože Rugelj, PFUL

The paper first presents the development of web-based learning environments for constructivist learning in higher education, with the emphasis on teaching content in engineering and science. In their work, the environment's developers took account of the latest findings of education research and available new technologies to create a successful and efficient learning environment. Learning technology and the virtual laboratory are implemented as web services. In fact, the virtual laboratory becomes infrastructure used in the cloud – IaaS. We further present our experience from the first year of practical use of the environment with around 700 students of computing and informatics. The presentation includes technical specifications (e.g. the load on the system) as well as content characteristics. The conclusion provides a practical example of the use of a virtual laboratory, from preparation of laboratory exercises and student booking of the laboratory to implementation and assessment of tasks.

System administration (Hall B, Kompas hotel)

Storage and marking spam (16.30–17.00)

Jernej Porenta, ARNES

In 2011, ARNES will offer organisations certain services today known as cloud services. The presentation will first outline the possibility of storing larger amounts of data on ARNES servers. Organisations will thus obtain disk space for their own purposes, including backup storage, distribution of large files on the Internet etc. ARNES has also long since offered its users a service to mark unwanted email, or spam. This year we will also offer this service to organisations that receive email on their own mail server and that have problems in the operation of mail servers due to spam, as well as end-user dissatisfaction due to electronic messages incorrectly marked as spam.

1, 2, 3, 4 – go IPv6! (17.00–17.45)

Matjaž Straus Istenič, ARNES

The last available IPv4 address space has been allocated to regional Internet registries beginning of February 2011. New IPv4 addresses will only be available from back stock. As these are exhausted, the expansion of IPv4 networks will finally stop. We will be facing the fact that only a new protocol – IPv6 – will be possible for new network systems and services. The presentation will first examine certain fundamental differences between the IPv4 and IPv6 protocols and discuss certain key points for successful modernisation of network services: Gaining an access to IPv6 service, recruitment and training of IPv6 experts, reviewing networks and services, and research into the impact of the introduction of IPv6, gradual introduction of IPv6 to the network and modernisation of services, revision of security of IPv6 networks and services, and coexistence between the new protocol and IPv4.

IPv6 – what about services? (17.45–18.10)

Klemen Andreuzzi, ARNES

Users who will not connect to the Internet via the IPv4 protocol (either due to the exhaustion of the IPv4 address space or for some other reason) will not be able to access services that only support the IPv4 protocol. It is therefore very important that – in additional to adjusting network equipment to the IPv6 protocol – we also adjust services offered on higher layers, such as web servers, mail servers, domain name servers etc. The paper will show, based on our own experience, things to be aware of when adapting services to the IPv6 protocol.

Welcome reception with cheese tasting (Hall C, Kompas hotel) (18.15)


*The programme of the ARNES 2011 Conference is preliminary and may still change before the event.

Conference programme

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