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The OSS Paradigm ShiftThe OSS Paradigm Shift
Sherif El-KassasSherif El-Kassas
Department of Computer ScienceDepartment of Computer Science
The American University in CairoThe American University in Cairo
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Open Source SoftwareOpen Source Software
The Open Source DefinitionThe Open Source Definition1)1) Free RedistributionFree Redistribution2)2) Source CodeSource Code3)3) Allow the creation and distribution of Derived Allow the creation and distribution of Derived
WorksWorks4)4) Integrity of The Author's Source Code Integrity of The Author's Source Code 5)5) No Discrimination Against Persons or No Discrimination Against Persons or
GroupsGroups6)6) No Discrimination Against Fields of No Discrimination Against Fields of
EndeavorEndeavor7)7) ……
http://opensource.org/docs/def_print.php
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What are typical examples?What are typical examples? Operating systems: Linux, FreeBSD Specialized servers: Apache, Sendmail, Samba,
OpenLDAP Tools: GCC, Perl, PHP, XML processors Office: OpenOffice, StarOffice, Middlewares: JONAS DBMS: MySQL, PostgreSQL Graphics: GIMP Security: Nessus, nmap, Snort, GPG, OpenSSL, Security: Nessus, nmap, Snort, GPG, OpenSSL,
OpenSSHOpenSSH
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Who is using them?Who is using them?
Business:Business:AmazonAmazonHotmailHotmailYahooYahooService providers (TE DATA)Service providers (TE DATA)
Universities (AUC’s new email system)Universities (AUC’s new email system)GovernmentsGovernments IndividualsIndividuals
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Motivation and supportMotivation and support
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http://banners.noticiasdot.com/termometro/boletines/docs/paises/europa/ue/2001/ida/OSS_Fac_sheet-usage_and_experience_made.pdf
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http://banners.noticiasdot.com/termometro/boletines/docs/paises/europa/ue/2001/ida/OSS_Fact_sheet-market_structure.pdf
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http://banners.noticiasdot.com/termometro/boletines/docs/paises/europa/ue/2001/ida/OSS_Fact_sheet-market_structure.pdf
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http://techrepublic.com.com/5100-6261-1055898.html
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http://techrepublic.com.com/5100-6261-1055898.html
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http://techrepublic.com.com/5100-6261-1055898.html
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http://techrepublic.com.com/5100-6261-1055898.html
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http://news.netcraft.com/archives/web_server_survey.html
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IT VendorsIT Vendors
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HW/SW vendors supporting LinuxHW/SW vendors supporting Linux
IBMIBM Linux on Intel servers, mid-range AS/400 (iSeries) and Linux on Intel servers, mid-range AS/400 (iSeries) and
mainframesmainframes should unify IBM heterogeneous platformsshould unify IBM heterogeneous platforms
SUNSUN Linux on low- to medium-end, Solaris on high-endLinux on low- to medium-end, Solaris on high-end compatibility with Solariscompatibility with Solaris
HPHP Linux in addition to HP-UX and WindowsLinux in addition to HP-UX and Windows develop on Linux, deploy on Linux, Windows and HP-UXdevelop on Linux, deploy on Linux, Windows and HP-UX
http://www.idei.asso.fr/Commun/Conferences/Internet/OSS2002/Papiers/Valduriez.PDF
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SW vendorsSW vendors
NetscapeNetscapeClient software made OSS in 1998Client software made OSS in 1998
Mozilla.org to manage developmentMozilla.org to manage developmentNPL = compromise GPL/BSDNPL = compromise GPL/BSDsale server software, services and content (with sale server software, services and content (with
AOL)AOL)
OracleOraclecommitment to Linux, in addition to other OScommitment to Linux, in addition to other OShigh-value proprietary software
http://www.idei.asso.fr/Commun/Conferences/Internet/OSS2002/Papiers/Valduriez.PDF
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Service vendorsService vendors
Linux distributorsLinux distributorsRedHat, Caldera, SuSe, Conectiva, RedHat, Caldera, SuSe, Conectiva,
TurboLinux, MandrakeSoft, etcTurboLinux, MandrakeSoft, etcSale customer supportSale customer supportUnitedLinux.com to unify the various UnitedLinux.com to unify the various
distributionsdistributionsApplication Service ProvidersApplication Service Providers
ASP1ASP1OSS and proprietary software as serviceOSS and proprietary software as service
http://www.idei.asso.fr/Commun/Conferences/Internet/OSS2002/Papiers/Valduriez.PDF
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Open source vs. closed source Open source vs. closed source security!security!
““demand open source code for anything demand open source code for anything related to security”related to security”
““Open Source Software certainly does Open Source Software certainly does have the potential to be more secure than have the potential to be more secure than its closed source counterpart. But make no its closed source counterpart. But make no mistake, simply being open source is no mistake, simply being open source is no guarantee of security.”guarantee of security.”
http://www.dwheeler.com/secure-programs/Secure-Programs-HOWTO.pdf
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OSS In EducationOSS In Education
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AT AUCAT AUC
The AUC mail systemThe AUC mail systemComputer science coursesComputer science courses
Operating SystemsOperating SystemsSecuritySecurityStudent ProjectsStudent ProjectsOthers…Others…
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http://otp.inlimine.org/
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Paradigm ShiftsParadigm Shifts
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Mainframes
Client/Server
WebTech
P Zero
OO
OpenSourceWireless
?
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““As the rule goes, As the rule goes, when a when a paradigm shift occurs, paradigm shift occurs, everyone goes back to zeroeveryone goes back to zero, , which brings people back which brings people back onto a onto a level playing field or the same level playing field or the same starting blockstarting block.”.”
http://www.transknowformance.com/page.cfm?http://www.transknowformance.com/page.cfm?name=aprilnewslettername=aprilnewsletter
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ConclusionsConclusions
Is it a paradigm shift?Is it a paradigm shift? It will not totally replace what we knowIt will not totally replace what we knowBut we can benefit from it greatly in:But we can benefit from it greatly in:
CS and IT educationCS and IT educationResearchResearch IT securityIT security
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Questions?Questions?
Links:Links:[email protected]@aucegypt.edu
www.cs.aucegypt.edu/~skassas/osswww.cs.aucegypt.edu/~skassas/oss