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Intranet je interno telekomunikacijsko omrežje znotraj organizacije, ki uporablja standardno internetno tehniko, kot so spletni strežniki, TCP/IP in HTML. To je torej zasebni internet, ki uporablja tehniko, programsko opremo, protokole ter standarde javnega interneta in se uporablja za iskanje in prikaz dokumentov, za elektronsko pošto ter za skupinsko delo znotraj podjetja. Lahko je povsem izoliran ali pa je prek ustreznih varnostnih mehanizmov povezan s svetovnim internetom.
Contextualized monitoring
Podatke nadzornega sistema, ki spremlja kvaliteto storitev in kvaliteto uporabniške izkušnje, se lahko poveže tudi z drugimi zunanjimi podatki in tako ugotavlja številne korelacije z dogodki, ki niso neposredno povezani z nadzorovanim okoljem.
Tak sistem, ki v realnem času nadzoruje IPTV promet, je bil vzpostavljen v sodelovanju Laboratorija za telekomunikacije in Telekoma Slovenije.
IKT igrajo ključno vlogo pri pametnih omrežjih
Pri pametnih elektroenergetskih omrežjih pomembne vloge ne igra samo energetika, ampak tudi informacijske in komunikacijske tehnologije (IKT). Brez njih pametnih omrežij sploh ne bi bilo.
27. delavnica VITEL – Pametna mesta
Na Brdu pri Kranju je 12. in 13. novembra potekala 27. delavnica o telekomunikacijah. Vodilna tema tokratne delavnice so pametna mesta.
Zasnova opozorilnega sistema na odstopanje storitev GNSS
During the maximum of solar cycle some harmful events can be observed. Their effects might disrupt normal operation of satellite communications by changing the signal propagation path, causing computer errors and destroying vulnerable hardware. The ongoing research project “Determination and evaluation of irregular solar activities’ impact to satellite positioning” (2009-2013, funded by ARRS) has a goal to pin-point those massively used location based services for positioning which might be degraded due to increased solar activities, and, to explain how strong this impact may be. This paper will outline the emerging concept of warning system by introducing its inputs, possible outputs aligned to service classes and the evaluation of threat during the last period since the year 2000.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
Low Cost Video on Demand Platform Based on Open Source Software
Video on demand servers are complex, expensive and inappropriate to be used in low-budget environments. This work proposes an approach to use an open source web server and an open source content management system as a video on demand platform for public web purposes. Pseudo-streaming over the hyper text transfer protocol is introduced with the supporting web server features. A practical implementation of the solution is provided with the extensions made to Wordpress content management system.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
Analiza postavljanja storitev RCS na aplikacijskem sloju IMS
In the paper we have analysed the service placement of RCS services on IMS application layer. Using real test bed we have analysed five services which we have placed on three application servers. We have analysed characteristics of services, corresponding messages, possibilities for placement and side of services. General parameters of users which we used for traffic analysis of busy hour were defined. On one configuration where all the services were on each application server we simulated four scenarios. The results show that the traffic on the S-CSCF for voice services is in range from 10 % to 59 % of all the traffic for these scenarios.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
User behavior analysis based on Identity management systems’ log data
Identity Management Systems (IdM systems) are repositories where users’ security credentials are kept and managed. One of many tasks performed by IdM system is an authentication and authorization of users while they are using applications. In case where IdM systems are organized as central repository, which means that authentications and authorizations for different applications are carried out on one central IdM system. This case is common for enterprises with more than 50 employees where various aspects of users’ behavior can be analyzed. By applying machine learning method SVM (Support Vector Machines) on IdM system log data with application on searching employees that are acting enthusiastically within working day, we showed that analysis of IdM systems log data can be successfully applied for analyzing employees behavior within an enterprise.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
A Tool for Development and Evaluation of Accessible Web 2.0 Applications
Many Web applications are not designed in a way which would allow persons with disabilities and older adults to fully benefit from modern Web 2.0 services. Implementation of Web accessibility has traditionally been plagued by inefficient tools and tedious evaluation procedures. The I2Web project is developing software frameworks that will support Web developers better during the implementation phase and is introducing new methods for accessibility validation based on simulation of user preferences and device models.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
A Platform Enabling 2nd Screen Functionality for Mobile Applications
We address the problem of presenting an arbitrary content from the mobile device on additional screen. A television is usually considered as such example but it is also possible to use other devices as an additional or second screen. A working platform that enables 2nd screen functionality is presented and compared to some of the most known related technologies, such as DLNA, AirPlay, Anymote and specific solutions from TV manufacturers.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
Sistemi za zaznavo vdorov
Intrusion detection and prevention systems are an important part of network security infrastructure. In this article we test two open source implementation of intrusion detection systems.
The introduction gives an overview, technologies and types of IDS systems. We follow up with presentation of two open source IDS implementations – Snort and Suricata. Testing conditions with results are presented at the end.
Za ogled vsebine si prenesite PDF datoteko.
Prispevek je objavljen v Zborniku 21. mednarodne Elektrotehniške in računalniške konference ERK 2012.
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