{"id":104418,"date":"2022-06-15T21:37:34","date_gmt":"2022-06-15T19:37:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-monolitnyj-distributiv-ubuntu-core-22"},"modified":"2022-06-15T21:37:34","modified_gmt":"2022-06-15T19:37:34","slug":"dostupen-monolitnyj-distributiv-ubuntu-core-22","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/dostupen-monolitnyj-distributiv-ubuntu-core-22","title":{"rendered":"Der monolitiske distribuerede Ubuntu Core 22 er tilg\u00e6ngelig","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Canonical har udgivet Ubuntu Core 22, en kompakt version af Ubuntu-distributionen, tilpasset til brug p\u00e5 Internet of Things (IoT) enheder, i containere, forbruger- og industrimaskiner. Ubuntu Core leveres i form af et udeleligt monolitisk grundsystembillede, hvor der ikke er anvendt opdeling i separate deb-pakker. Billederne af Ubuntu Core 22, hvis sammens\u00e6tning er synkroniseret med Ubuntu 22.04 paketbasen, er forberedt til systemer x86_64, ARMv7 og ARMv8. Udgivelsens supporttid er 10 \u00e5r.      <\/p>\n<p>Ubuntu Core fungerer som grundlag for at k\u00f8re yderligere komponenter og applikationer, der pr\u00e6senteres som selvforsynende udvidelser i snap-format. Komponenter af Ubuntu Core, inklusive grundsystemet, Linux-kernen og systemudvidelser, leveres ogs\u00e5 i snap-format og administreres med v\u00e6rkt\u00f8jet snapd. Snappy-teknologien muligg\u00f8r dannelse af et systembillede som en helhed uden opdeling i separate pakker.    <\/p>\n<p>I stedet for trinvise opdateringer p\u00e5 niveauet for individuelle deb-pakker anvendes der i Ubuntu Core en atomar opdateringsmekanisme med snap-pakker og grundsystemet, svarende til Atomic, ChromeOS, Endless, CoreOS og Fedora Silverblue. Ved opdatering af det grundl\u00e6ggende milj\u00f8 og snap-pakker er der mulighed for at rulle tilstande tilbage til en tidligere version i tilf\u00e6lde af problemer, der opdages efter opdateringen. I \u00f8jeblikket er der over 4.500 snap-pakker i SnapCraft-kataloget.    <\/p>\n<p>For at sikre sikkerheden verificeres hver komponent i systemet med digitale signaturer, hvilket beskytter distributionen mod skjulte \u00e6ndringer eller installation af uverificerede snap-pakker. De komponenter, der leveres i Span-format, isoleres ved hj\u00e6lp af AppArmor og Seccomp, hvilket skaber et ekstra lag af beskyttelse for systemet i tilf\u00e6lde af, at enkelte applikationer kompromitteres. Grundsystemet inkluderer kun det minimale s\u00e6t n\u00f8dvendige applikationer, hvilket ikke kun har reduceret st\u00f8rrelsen p\u00e5 det systemiske milj\u00f8 men ogs\u00e5 har positivt p\u00e5virket sikkerheden ved at reducere de muligeangrebvektorer.    <\/p>\n<p>Det grundl\u00e6ggende filsystem monteres i skrivebeskyttet tilstand. Der er mulighed for at bruge datakryptering p\u00e5 drevet ved hj\u00e6lp af TPM. Opdateringer frigives regelm\u00e6ssigt, leveres over-the-air (OTA) og er synkroniseret med sammens\u00e6tningen af Ubuntu 22.04. For at minimere trafik leveres opdateringerne i komprimeret format og inkluderer kun \u00e6ndringer i forhold til den tidligere opdatering (delta-opdateringer). Automatiseringen af installationsopdateringerne l\u00f8ser problemerne med at opretholde systemets sikkerhed ved brug p\u00e5 indlejrede enheder.     <\/p>\n<p>Takket v\u00e6re den logiske adskillelse af det grundl\u00e6ggende system fra applikationerne, s\u00f8rger udviklerne af Ubuntu for at holde kodebasen for Ubuntu Core ajour, mens udviklerne af applikationer tager sig af aktualiteten af de ekstra applikationer. Denne tilgang g\u00f8r det muligt at reducere omkostningerne ved vedligeholdelse af produkter, hvis softwaremilj\u00f8 er baseret p\u00e5 Ubuntu Core, da deres producenter ikke beh\u00f8ver at besk\u00e6ftige sig med udsendelse og levering af systemopdateringer og blot kan fokusere p\u00e5 deres specifikke komponenter.    <\/p>\n<p>Hovednyhederne:  <\/p>\n<ul>\n<li class=\"l\"> Konceptet med validerede pakke-s\u00e6t (Validation sets) er blevet foresl\u00e5et, hvilket g\u00f8r det muligt at bestemme et s\u00e6t snap-pakker og deres versioner, som kun kan installeres og opdateres sammen. Validerede s\u00e6t kan anvendes til at implementere restriktioner, der tillader installation af kun bestemte snap-pakker, distribution af egne yderligere testede og validerede pakker, eller til at forenkle h\u00e5ndteringen af afh\u00e6ngigheder.\n<li class=\"l\"> Der er tilf\u00f8jet v\u00e6rkt\u00f8jer til at opgradere milj\u00f8et fra Ubuntu Core 20 til version 22 uden geninstallation.\n<li class=\"l\"> Muligheden for at nulstille konfigurationen til fabriksindstillingerne er blevet implementeret.\n<li class=\"l\"> Der er givet support til gruppekvoter til begr\u00e6nsning af CPU- og hukommelsesressourcer knyttet til bestemte grupper af snap-tjenester.\n<li class=\"l\"> Der er tilf\u00f8jet support til MicroK8s-v\u00e6rkt\u00f8jet, der tilbyder en forenklet version af Kubernetes containerorkestreringsplatformen.\n<li class=\"l\"> Et Linux-kernelpakke med PREEMPT_RT patches, designet til brug i systemer, der k\u00f8rer i realtid, er blevet foresl\u00e5et.\n<li class=\"l\"> Der er tilf\u00f8jet support til MAAS (Metal-as-a-Service) v\u00e6rkt\u00f8jet til hurtig deployering af konfigurationer p\u00e5 mange systemer.  <\/li>\n<li class=\"l\"> St\u00f8tte til cloud-init er tilf\u00f8jet til systemkonfiguration under opstart.        <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57362\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 Ubuntu Core 22, \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Ubuntu, \u0430\u0434\u0430\u043f\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430 \u0432\u0435\u0449\u0435\u0439 (IoT), \u0432 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430\u0445, \u043f\u043e\u0442\u0440\u0435\u0431\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u043c \u0438 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u043c \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438. Ubuntu Core \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0444\u043e\u0440\u043c\u0435 \u043d\u0435\u0434\u0435\u043b\u0438\u043c\u043e\u0433\u043e \u043c\u043e\u043d\u043e\u043b\u0438\u0442\u043d\u043e\u0433\u043e \u043e\u0431\u0440\u0430\u0437\u0430 \u0431\u0430\u0437\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043d\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0431\u0438\u0432\u043a\u0430 \u043d\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 deb-\u043f\u0430\u043a\u0435\u0442\u044b. \u041e\u0431\u0440\u0430\u0437\u044b Ubuntu Core 22, \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d \u0441 \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0439 \u0431\u0430\u0437\u043e\u0439 Ubuntu 22.04, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104418","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 Ubuntu Core 22, \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Ubuntu, \u0430\u0434\u0430\u043f\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f 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