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dnes 01:55 | Bezpečnostní upozornění

Společnost Uber potvrdila bezpečnostní incident a únik dat v roce 2016. Unikly údaje o 57 milionech cestujících (jména, emailové adresy a čísla mobilních telefonů) a 600 tisících řidičích (navíc čísla řidičských průkazů).

Ladislav Hagara | Komentářů: 0
včera 23:44 | Humor

Co vypíše příkaz man půl hodiny po půlnoci? Text "gimme gimme gimme". Jedná se o virtuální velikonoční vajíčko připomínající skupinu ABBA a její hit Gimme! Gimme! Gimme! (A Man After Midnight). Problém nastane, pokud gimme gimme gimme nabourá automatizované testování softwaru. To se pak příkaz man musí opravit [Bug 1515352] [reddit].

Ladislav Hagara | Komentářů: 2
včera 18:11 | Zajímavý článek

Mozilla.cz informuje, že Firefox na Fedoře podporuje Client Side Decorations. Firefox na Linuxu se vykresluje včetně standardního záhlaví okna, které je v případě webového prohlížeče většinou nadbytečné a ubírá drahocenné vertikální místo na obrazovce. Verze distribuovaná uživatelům Fedory však nyní obsahuje experimentální podporu pro takzvané Client Side Decorations, které umožňují vykreslování „oušek“ panelů do záhlaví okna.

Ladislav Hagara | Komentářů: 8
včera 05:00 | Bezpečnostní upozornění

Maxim Goryachy a Mark Ermolov ze společnosti Positive Technologies budou mít v prosinci na konferenci Black Hat Europe 2017 přednášku s názvem "Jak se nabourat do vypnutého počítače, a nebo jak v Intel Management Engine spustit vlastní nepodepsaný kód". O nalezeném bezpečnostním problému informovali společnost Intel. Ta bezpečnostní problém INTEL-SA-00086 v Intel Management Engine (ME), Intel Server Platform Services (SPS) a Intel

… více »
Ladislav Hagara | Komentářů: 27
včera 01:33 | Zajímavý projekt

Na Humble Bundle byla spuštěna akce Humble Book Bundle: Java. Za 1 dolar a více lze koupit 5 elektronických knih, za 8 dolarů a více 10 elektronických knih a za 15 dolarů a více 15 elektronických knih věnovaných programovacímu jazyku Java od nakladatelství O'Reilly. Peníze lze libovolně rozdělit mezi nakladatelství O'Reilly, neziskovou organizaci Code for America a Humble Bundle.

Ladislav Hagara | Komentářů: 0
včera 00:11 | Zajímavý projekt

Článek na OMG! Ubuntu! představuje rodinu písma IBM Plex. Jedná se o open source písmo (GitHub) navržené a uvolněné společností IBM (YouTube, Carbon Design System). Ukázka na Font Squirrel.

Ladislav Hagara | Komentářů: 8
20.11. 23:22 | Komunita

Na Humble Bundle lze získat počítačovou hru Brütal Legend (Wikipedie, YouTube) běžící také v Linuxu zdarma. Speciální akce končí ve středu v 19:00.

Ladislav Hagara | Komentářů: 0
20.11. 06:00 | Zajímavý článek

USA Network vysílá již třetí sérii seriálu Mr. Robot (Wikipedie, ČSFD.cz). Ryan Kazanciyan, technický konzultant seriálu, se na Medium v sérii článků Mr. Robot Disassembled věnuje jednotlivým dílům a popisuje použité nástroje a postupy.

Ladislav Hagara | Komentářů: 2
19.11. 23:55 | IT novinky

Společnost StartCom oficiálně oznámila, že jako certifikační autorita končí. Od 1. ledna 2018 přestane vydávat nové certifikáty a následující 2 roky bude poskytovat OCSP a CRL. Počátkem roku 2020 budou všechny platné certifikáty zneplatněny.

Ladislav Hagara | Komentářů: 49
19.11. 22:00 | IT novinky

Hodnota Bitcoinu, decentralizované kryptoměny, překonala hranici 8 000 dolarů [reddit].

Ladislav Hagara | Komentářů: 5
Jak se vás potenciálně dotkne trend odstraňování analogového audio konektoru typu 3,5mm jack z „chytrých telefonů“?
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Celkem 732 hlasů
 Komentářů: 37, poslední včera 15:21
    Rozcestník

    University of Pardubice Uses Raydesk Virtual Desktop

    14. 6. 2010 | Reklama | Tiskové zprávy | 1820×

    The University of Pardubice is the only university type institution in the Pardubice Region. There are seven faculties overall and its more than 9 thousand students make it one of the medium size public universities in the Czech Republic. The Information Technologies study programme is mainly intended for teaching professionals who will be able to design, realise, and operate information systems and their modules for the support of learning, administrative, and management activities in companies and other organisations.

    Raydesk

    NEW VERSION

    Raydesk 3.0 brings a host of new features, with the most important being better user experience and ease of use for administrators.

    Bachelor studies are primarily focused on the area of information technology from the point of view of information processing methods, programming languages, database building and administration, and application of system analysis. Graduates also acquire basic information in theoretical subjects, such as mathematics, statistics, and basics of light-current electrical engineering. The students are also provided with the basics of economics, management, marketing, and language training in English and German.

    Academic Need

    • Lowering requirements for central administration and maintenance of classroom user profiles.
    • Elimination of user interference through settings and configuration of the working environment.
    • Substitution of an unsuitable and resource-hungry desktop on a weak server.
    • Use of a central MS Active Directory data storage with a database of all students.
    • Ability to run existing scientific and developer tools in a new environment.

    Proposed Solution

    • Lowering the load on a single server without the need to invest in new hardware.
    • Seamless classroom transition from test operation to fully functional virtual desktops.
    • Keeping the current Sun Fire V20z server (2 AMD Opteron CPUs).
    • Data storage will use the university's central MS Active Directory without any new elements.
    • Synchronisation of IDs and user logins with the data storage according to their assignments for the purpose of configuring each student's or faculty member's workplace.
    • The certified and highly stable Red Hat Enterprise Linux.

    Solution Benefits

    • Computation-intensive operations more economical.
    • Very high performance in the area of mathematical models.
    • Cost savings related to end-user and scientific professionals' workstations.
    • Ready for expansion of performance output and supported applications.
    • Providing other institutions within the university with surplus output.
    • Energy savings as per computational performance and individual workplaces.

    Initial Situation

    The University of Pardubice has a number of computer classrooms. One of them has been equipped with the ultra-thin Sun Ray terminals for some time. The main server runs the Sun Solaris 9 operating system and users work with the Java Desktop System graphical interface. This environment is based on Gnome, is quite demanding when it comes to hardware resources, and most importantly, it doesn't restrict the user's choice of applications. This has had two results. First, lack of performance for scientific and development tools, such as NetBeans, and second, use of unauthorised applications during exams.

    pardubice sitove schema

    Solution

    The solution to the aforementioned problems lies in substituting the resource-hungry and unsuitable Java Desktop System with the Raydesk virtual desktop. Raydesk is much more thrifty of resources. The solution was designed to introduce as little changes as possible into existing infrastructure. The main Sun Fire V20z server was left in place, but the Solaris operating system was replaced with Red Hat Enterprise Linux. The main advantage was a greater number of localised applications, including Matlab.

    User administration was an uneasy task. The client's primary request was to utilise the existing student and faculty data storage which necessitated the synchronisation of identities from the central MS Active Directory storage with the requirements of the Raydesk desktop. The central server running Red Hat Enterprise Linux and authorisation layers of the Raydesk virtual desktop were configured to authorise against Microsoft Active Directory, with a Kerberos server being the middleman. Kerberos runs on the same MS Windows Server 2003 as MS Active Directory while a local agent is installed on the Red Hat Enterprise Linux server.

    The identities are synchronised once in 24 hours, always in one direction only. The university can thus keep its existing identity management in one place, without the need for duplication. The Kerberos system creates a new set of local users in Red hat Enterprise Linux every day, including their access passwords which are then used by the Raydesk virtual desktop.

    Client's Evaluation

    The supplier, Stickfish, s. r. o., approached us with a presentation of future development of desktop solutions with regard to energy consumption, but more importantly, central administration and maintenance. Stickfish appeared to be an expert in the area of desktop solutions built on the Sun Ray terminals. As there already is a classroom within the faculty equipped with the Sun Ray clients, we were looking for an efficient desktop solution for the user's desktop. Because open source solutions undeniably belong to the academic ground, we had gone through a few tests of the Sun Java Desktop, GNOME and other desktops. Given the server equipment of the classroom, the original solution from Sun did not suit us very well, especially with regard to system requirements for server resources.

    We also requested a unified central user administration because students change classrooms very frequently and different tools are used for teaching different subjects. Changes to configuration and parameters burden classroom staff beyond regular classwork. For this reason we found Raydesk a suitable solution fulfilling our unique requirements, and we were surprised to learn such product was available on the market. Implementation itself went smoothly thanks to a preparation of a test pilot. Pilot operation also included connection to the MS Active Directory central identities management. Stickfish was able to handle this requirement as well before the seamless transition to live operation.

    Mgr. Tomáš Hudec
    Department of Information Technologies, Faculty of Electrical Engineering and Informatics, University of Pardubice

    Contact

    Stickfish, s. r. o.
    Koněvova 2660/141
    130 83 Prague 3

    +420 267 108 381
    info@stickfish.com

    About Stickfish

    Stickfish is an ICT company specialising in enterprise Linux and Unix technologies. Its strategy is to supply complete solutions: from analysis of requirements and the finding of the best solution, to training and subsequent technical support or outsourcing of maintenance. Stickfish provides solutions from leading vendors such as Sun, IBM, Red Hat, Oracle, or VMware, advanced networking products from Juniper and Cisco, and also its own highly secure and fast enterprise desktop solution, Raydesk. Stickfish operates the popular electronic store 64bit.eu and the technically oriented Internet portals AbcLinuxu.cz, ITBiz.cz and Hdmag.cz.

    Registered trademarks belong to their respective owners.

           

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