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OpenBSD and Linux: OpenBSD and Linux: Insights into a migration ...

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The migration to OpenBSD. Why the hell OpenBSD? Why the hell OpenBSD? ... Issues with OpenBSD. Unforseen problems. ftpproxy in 3.7. Flavours: stable vs. ...

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OpenBSDandLinux: OpenBSDandLinux: InsightsintoamigrationprojectattheINIPage 1OpenBSDandLinux:OpenBSDandLinux:Insightsi ntoamigrationprojectattheINIInsightsintoam igrationprojectattheINIStephanA.RickauerLi nuxTag'07StephanA.RickauerLinuxTag'07Page 2200706012AgendaIntroductionIntroductionTh eITInfrastructureatINITheITInfrastructurea tINIProblemswithourLinuxSetupsProblemswith ourLinuxSetupsTheMigrationtoOpenBSDTheMigr ationtoOpenBSDTheOutcome/SummaryTheOutcome /SummaryPostMigrationalIssuesPostMigration alIssuesFuturePlansFuturePlansConclusionCo nclusionPage 3200706013IntroductionTheInstituteofNeuroi nformaticsEstablishedin1995AtUniversityand ETHZurich80researchers/3professorsThemissi onoftheInstituteistodiscovertheThemissiono ftheInstituteistodiscoverthekeyprinciplesb ywhichbrainsworkkeyprinciplesbywhichbrains workandandtoimplementtheseinartificialsyst emsthattoimplementtheseinartificialsystems thatinteractintelligentlywiththerealworld. interactintelligentlywiththerealworld.Page 4200706014TheITinfrastructureatINIHeteroge neousITenvironment120Linuxworkstations20Wi ndowsPC's20Servers30Specialpurposemachines 1.45workequivalentsFournetworksegmentsLANW LANDMZNUZ(Uplink)Page 5200706015NetworkoverviewPage 6200706016TheITinfrastructureatINIMainHAte chnologiesused...HeartbeatDRBDNetfilter(ip tables)...onactive/passiveclustersFileserv ers(frodo/samSuSE9.0)Mailservers(merry/pip pinSuSE9.1)Firewalls(legolas/gimliSuSE9.0) Page 7200706017ProblemswithourLinuxsetups:techn icalissuesTechnicalissuesDRBDVeryrobustbut OSupgradesarecriticalPatchingonthe'active' nodeonlyLongsynctimespriorto9.1(fixedwith' QuickSync')heartbeatSlow:takeoverupto20sdu etoARPbroadcastsLost'sessions'reconnectsre quiredNetfilterNosessionsynchronisationPag e 8200706018ProblemswithourLinuxsetups:lifec ycleLifecycleissuesCommunityreleasesvs.'bu sinessreleases'Thepriceofalong(er)lifecylc eSoftwareofqualityfocusedSoftwareofquality focusedprojectsbecomesmoreprojectsbecomesm oresecureovertime.secureovertime.AndyOzmen tStuartE.SchlechterAndyOzmentStuartE.Schle cht ...

Source: www.ini.unizh.ch

 

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