{"id":99904,"date":"2021-04-17T10:22:46","date_gmt":"2021-04-17T08:22:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vklyuchenie-podderzhki-http-3-v-firefox-namecheno-na-konecz-maya"},"modified":"2021-04-17T10:22:46","modified_gmt":"2021-04-17T08:22:46","slug":"vklyuchenie-podderzhki-http-3-v-firefox-namecheno-na-konecz-maya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/vklyuchenie-podderzhki-http-3-v-firefox-namecheno-na-konecz-maya","title":{"rendered":"HTTP\/3 toe rakendamine Firefoxis on planeeritud mai l\u00f5ppu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Mozilla teatas plaanist hakata etappide kaupa rakendama HTTP\/3 ja QUIC protokolle Firefox 88 versioonis, mis on planeeritud 19. aprilliks (esialgu oodati v\u00e4ljaannet 20. aprilliks, kuid graafiku kohaselt on see \u00fche p\u00e4eva v\u00f5rra edasi l\u00fckatud). Alguses aktiveeritakse HTTP\/3 tugi vaid v\u00e4ikesele protsendile kasutajatest ja kui etten\u00e4gematud probleemid ei ilmne, laiendatakse see k\u00f5igile kasutajatele mai l\u00f5puks. \u00d6iste ehitustes ja beetaversioonides oli HTTP\/3 vaikimisi sisse l\u00fclitatud m\u00e4rtsi l\u00f5pus.    <\/p>\n<p>Tuletame meelde, et HTTP\/3 rakendamine Firefoxis p\u00f5hineb Mozilla arendatav projektil neqo, mis pakub kliendi rakendust ja <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-los-angeles\/\"   title=\"serverid\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3702\">serverid<\/a> QUIC-protokolli jaoks. HTTP\/3 ja QUIC-i toetavate komponentide kood on kirjutatud Rusti keeles. HTTP\/3 lubamine on v\u00f5imalik konfigureerida seades about:config, kus on valik &#171;network.http.http3.enabled&#187;. Eksperimentaalne HTTP\/3 tugi on samuti lisatud Chrome'i ja curl'i klientprogrammidesse.  <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/\"   title=\"serverid\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1572\">serverid<\/a> nginx-is on see olemas, samuti nginx-moodulina ja Cloudflare'i testserverina. F\u00f6deraalsel tasandil on HTTP\/3 tugi juba tagatud Google'i ja Facebooki serverites.     <\/p>\n<p>HTTP\/3 protokoll on praegu mustandspetsifikatsiooni staadiumis ja pole veel IETF-is l\u00f5plikult standardiseeritud. HTTP\/3 kasutamiseks on vajalik, et nii kliendi kui ka serveri k\u00fclgpoolsed rakendused toetaksid sama versiooni QUIC-i ja HTTP\/3 mustandstandardist, mis on n\u00e4idatud Alt-Svc p\u00e4ises (Firefox toetab mustandite spetsifikatsioone alates 27. kuni 32.).            <\/p>\n<p>HTTP\/3 m\u00e4\u00e4ratleb QUIC protokolli kasutamise HTTP\/2 transportimiseks. QUIC (Quick UDP Internet Connections) on alates 2013. aastast Google'i poolt arendatav alternatiiv TCP+TLS kombinatsioonile, mis lahendab TCP-s \u00fchenduste loomise ja kokkuleppimise pika aega ning k\u00f5rvaldab viivitused, kui andmete edastamise k\u00e4igus kaotatakse pakette. QUIC on UDP protokolli pealne kiht, mis toetab mitme \u00fchenduse multiplexerimist ja pakub kr\u00fcpteerimismeetodeid, mis on samav\u00e4\u00e4rsed TLS\/SSL-iga. IETF-is standardi arendamisel on protokolli tehtud muudatusi, mis on viinud kahe paralleelselt eksisteeriva haru tekkimiseni \u2014 \u00fcks HTTP\/3 jaoks ja teine Google'i toetatud (Chrome toetab m\u00f5lemat varianti).    <\/p>\n<p>QUICi p\u00f5hijooned:  <\/p>\n<ul>\n<li class=\"l\"> K\u00f5rge turvalisus, v\u00f5rreldav TLS'iga (QUIC pakub tegelikult v\u00f5imalust kasutada TLS'i UDP peal);  <\/li>\n<li class=\"l\"> Voolu terviklikkuse j\u00e4lgimine, mis takistab pakettide kaotust;    <\/li>\n<li class=\"l\"> V\u00f5imalus luua \u00fchendus koheselt (0-RTT, umbes 75% juhtudel saab andmeid edastada kohe p\u00e4rast \u00fchenduse loomise paketi saatmist) ja tagada minimaalne viivitus p\u00e4ringu saatmise ja vastuse saamise vahel (RTT, Round Trip Time);    <\/li>\n<li class=\"l\"> Paketi uuesti edastamisel kasutatakse teistsugust j\u00e4rjestuse numbrit, mis v\u00f5imaldab v\u00e4ltida mitmeti m\u00f5istetavust saadud pakettide m\u00e4\u00e4ratlemisel ja k\u00f5rvaldada aegumise probleemid;  <\/li>\n<li class=\"l\"> Paketi kaotus m\u00f5jutab ainult selle kaasnevat voolu ja ei peata andmete edastamist samaaegselt praeguse \u00fchenduse kaudu edastatavatest voogudest;    <\/li>\n<li class=\"l\"> Vigade parandusmeetmed, mis minimeerivad viivitusi kadunud pakettide uuesti edastamise t\u00f5ttu. Eriliste vigade parandamise koodide kasutamine paketi tasemel, et v\u00e4hendada olukordi, mis n\u00f5uavad kadunud paketi andmete uuesti edastamist.   <\/li>\n<li class=\"l\"> Kr\u00fcptograafiliste plokkide piirid on joondatud QUIC pakettide piiridega, mis v\u00e4hendab pakettide kaotuse m\u00f5ju j\u00e4rgmiste pakettide sisu dekodeerimisele;    <\/li>\n<li class=\"l\"> TCP j\u00e4rjekorra ummistumise probleemide puudumine;    <\/li>\n<li class=\"l\"> \u00dchenduse identifikaatori tugi, mis v\u00f5imaldab v\u00e4hendada mobiilsete klientide uuesti \u00fchendamise aega;  <\/li>\n<li class=\"l\"> V\u00f5ime \u00fchendada laienevaid \u00fchenduse \u00fclekande kontrolli mehhanisme;  <\/li>\n<li class=\"l\"> Igas suunas l\u00e4bilaskev\u00f5ime ennustamise tehnika kasutamine, et tagada pakkide edastamise optimaalne intensiivsus, v\u00e4ltides \u00fcleminekuid koormuse seisundisse, kus esineb pakettide kaotust;    <\/li>\n<li class=\"l\">  T\u00e4htis j\u00f5udluse ja ribalaiuse kasv v\u00f5rreldes TCP-ga. Video teenustes, nagu YouTube, on QUIC-i kasutamine v\u00e4hendanud videote vaatamisel vahem\u00e4lu operatsioone 30%.          <\/li>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54979\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430 \u043e \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u0438\u0438 \u043d\u0430\u0447\u0430\u0442\u044c \u043f\u043e\u044d\u0442\u0430\u043f\u043d\u043e\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 HTTP\/3 \u0438 QUIC \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Firefox 88, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u043e\u043c \u043d\u0430 19 \u0430\u043f\u0440\u0435\u043b\u044f (\u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e, \u0440\u0435\u043b\u0438\u0437 \u043e\u0436\u0438\u0434\u0430\u043b\u0441\u044f 20 \u0430\u043f\u0440\u0435\u043b\u044f, \u043d\u043e, \u0441\u0443\u0434\u044f \u043f\u043e \u0433\u0440\u0430\u0444\u0438\u043a\u0443, \u0441\u0434\u0432\u0438\u043d\u0443\u0442 \u043d\u0430 \u043e\u0434\u0438\u043d \u0434\u0435\u043d\u044c). \u0412\u043d\u0430\u0447\u0430\u043b\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 HTTP\/3 \u0431\u0443\u0434\u0435\u0442 \u0430\u043a\u0442\u0438\u0432\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u043b\u0438\u0448\u044c \u0434\u043b\u044f \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u043d\u0442\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438, \u0435\u0441\u043b\u0438 \u043d\u0435 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u0435\u0442 \u043d\u0435\u043f\u0440\u0435\u0434\u0432\u0438\u0434\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c, \u0431\u0443\u0434\u0435\u0442 \u0434\u043e\u0432\u0435\u0434\u0435\u043d\u0430 \u0434\u043e \u0432\u0441\u0435\u0445 \u043a \u043a\u043e\u043d\u0446\u0443 [&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-99904","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430 \u043e \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u0438\u0438 \u043d\u0430\u0447\u0430\u0442\u044c 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