abclinuxu.cz AbcLinuxu.cz itbiz.cz ITBiz.cz HDmag.cz HDmag.cz abcprace.cz AbcPráce.cz
AbcLinuxu hledá autory!
Inzerujte na AbcPráce.cz od 950 Kč
Rozšířené hledání
×
dnes 13:44 | Zajímavý článek

Glenn 'devalias' Grant publikoval na svém blogu příspěvek věnovaný reverznímu inženýrství USB. Příspěvek obsahuje celu řadu odkazů na potřebný software a hardware, jakož i odkazy na hackery věnující se reverznímu inženýrství a odkazy na další zajímavé články.

Ladislav Hagara | Komentářů: 0
dnes 12:11 | Nová verze

Byla vydána verze 10.8 a krátce na to opravná verze 10.8.1 open source alternativy GitHubu, tj. softwarového nástroje s webovým rozhraním umožňujícího spolupráci na zdrojových kódech, GitLab (Wikipedie). Představení nových vlastností i s náhledy v příspěvku na blogu.

Ladislav Hagara | Komentářů: 0
včera 10:44 | Komunita

Společně s openSUSE Conference 2018 probíhá dnes v Praze na Fakultě informačních technologií ČVUT jednodenní seminář CryptoFest 2018 (Twitter). Přednášky lze sledovat online na YouTube nebo na CCC.

Ladislav Hagara | Komentářů: 2
včera 02:22 | Komunita

Barton George, zakladatel a vedoucí projektu Sputnik, představil na svém blogu čtyři nové mobilní pracovní stanice Dell Precision s předinstalovaným Ubuntu. Jedná se o modely 3530, 5530, 7530 a 7730. Mobilní pracovní stanice budou certifikovány pro RHEL 7.5.

Ladislav Hagara | Komentářů: 11
včera 01:11 | Nová verze

Vyšla verze 5.12 prohlížeče map a GPS logů GPXSee. Nová verze přidává podporu Garmin JNX map a přináší mírné zlepšení výkonu/UX.

Martin Tůma | Komentářů: 0
25.5. 12:11 | Komunita

V Praze na Fakultě informačních technologií ČVUT probíhá openSUSE Conference 2018. Přednášky lze sledovat také online. Aktuální dění lze sledovat na Twitteru. Stisknutím zeleného tlačítka bylo dnes dopoledne vydáno openSUSE Leap 15.0.

Ladislav Hagara | Komentářů: 12
25.5. 11:44 | Komunita

Na Steamu probíhá do 28. května akce s názvem Spring Cleaning (Jarní úklid). V rámci akce lze hrát hry Don't Starve Together, Cities: Skylines, Tyranny, Borderlands 2, Middle-earth: Shadow of Mordor a Left 4 Dead 2 běžící na Linuxu zdarma [GamingOnLinux].

Ladislav Hagara | Komentářů: 2
24.5. 23:23 | Humor

Nová služba České pošty nazvaná Bezpečné úložiště nabízí až 100GB kapacitu pro "bezpečnou správu Vašich dat pod patronací důvěryhodného partnera Česká pošta".

… více »
Lol Phirae | Komentářů: 56
24.5. 22:14 | Bezpečnostní upozornění

Nova kritická hrozba VPNfilter bola zistená po dlhšiej spolupráce Talos s verejnými i súkromnými bezpečnostnými agentúrami. VPNfilter ohrozuje približne 500 000 zariadení v približne 54 krajinach. Zasiahnutí výrobcovia sú Linksys, MikroTik, NETGEAR, TP-Link (SOHO), QNAP (NAS). Správanie malwaru je nebezpečnej povahy, čo môže v určitých prípadoch spôsobiť škody veľkého rozsahu. Často tieto zariadenia sú na perimetri sieťe bez ochrany.

ewew | Komentářů: 5
24.5. 21:55 | Pozvánky

CSNOG (Czech and Slovak Network Operators Group), první československé setkání síťových operátorů, se uskuteční 11. a 12. června v Brně. Akce je určena poskytovatelům internetového připojení, síťovým operátorům, provozovatelům registrů, internetovým odborníkům a všem zájemcům o internetové a síťové technologie. Program je zaměřený na odborná, technická témata jako například síťová architektura, bezpečnost sítí, zpracování dat, DNS a další. Nutná je registrace.

Ladislav Hagara | Komentářů: 0
Používáte pro některé služby inetd?
 (35%)
 (23%)
 (42%)
Celkem 156 hlasů
 Komentářů: 5, poslední 22.5. 16:46
    Rozcestník

    University of Pardubice Uses Raydesk Virtual Desktop

    14. 6. 2010 | Reklama | Tiskové zprávy | 1865×

    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.

           

    Hodnocení: -

    zatím nehodnoceno
            špatnédobré        

    Nástroje: Tisk bez diskuse

    Tiskni Sdílej: Linkuj Jaggni to Vybrali.sme.sk Google Del.icio.us Facebook

    Komentáře

    Vložit další komentář

    ISSN 1214-1267   www.czech-server.cz
    © 1999-2015 Nitemedia s. r. o. Všechna práva vyhrazena.