{"id":52244,"date":"2019-11-04T00:00:00","date_gmt":"2019-11-03T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3"},"modified":"2020-02-18T13:59:55","modified_gmt":"2020-02-18T10:59:55","slug":"v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3","title":{"rendered":"I de nattliga versionerna av Firefox har st\u00f6d f\u00f6r HTTP\/3 lagts till.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mozilla.org\/en-US\/firefox\/channel\/desktop\/#nightly\">nattbyggnader<\/a><\/noindex>  Firefox, som kommer att ligga till grund f\u00f6r version 72 av Firefox, planerad till den 7 januari, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1581637\">har lagts till<\/a><\/noindex> st\u00f6d f\u00f6r HTTP\/3-protokollet. Som standard \u00e4r HTTP\/3 avst\u00e4ngt och kr\u00e4ver aktivering av alternativet &#171;network.http.http3.enabled&#187; i about:config. <\/p>\n<p>St\u00f6det f\u00f6r HTTP\/3 i Firefox \u00e4r baserat p\u00e5 ett projekt som utvecklas av Mozilla, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mozilla\/neqo\">neqo,<\/a><\/noindex>, som tillhandah\u00e5ller en implementation av klient och server f\u00f6r protokollet QUIC. Koden f\u00f6r komponenter som st\u00f6der HTTP\/3 och QUIC \u00e4r skriven i spr\u00e5k som Rust.<br \/>\nFr\u00e5n klientprogramvaran finns experimentellt st\u00f6d f\u00f6r HTTP\/3 \u00e4ven  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51526\">har lagts till<\/a><\/noindex> i Chrome och curl, och f\u00f6r servrar finns det i form av  <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/tree\/master\/extras\/nginx\">en modul<\/a><\/noindex> f\u00f6r nginx och <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/blob\/master\/examples\/http3-server.rs\">en testserver<\/a><\/noindex> baserad p\u00e5 biblioteket <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\">quiche<\/a><\/noindex> (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50061\">implementering av<\/a><\/noindex>  QUIC och HTTP\/3 p\u00e5 Rust fr\u00e5n f\u00f6retaget Cloudflare). F\u00f6r att kontrollera funktionaliteten hos klienter f\u00f6r HTTP\/3 <noindex><a rel=\"nofollow\" href=\"https:\/\/bagder.github.io\/HTTP3-test\/\">har flera testwebbplatser startats, varav de flesta fortfarande inte \u00f6ppnas korrekt i Firefox (HTTP\/3 befinner sig i ett skede av<\/a><\/noindex> arbetsnamnsspecifikation, <noindex><a rel=\"nofollow\" href=\"https:\/\/datatracker.ietf.org\/doc\/draft-ietf-quic-http\/\">och \u00e4r \u00e4nnu inte standardiserad).<\/a><\/noindex> Licens f\u00f6r projekt med \u00f6ppen k\u00e4llkod som \u00e5l\u00e4gger anv\u00e4ndare att \u00abinte orsaka skada\u00bb<\/p>\n<p>Vi p\u00e5minner om att HTTP\/3 standardiserar anv\u00e4ndningen av protokollet QUIC som transport f\u00f6r HTTP\/2. Protokollet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/quic\/\">QUIC<\/a><\/noindex> (Quick UDP Internet Connections) har utvecklats av Google sedan 2013 som ett alternativ till TCP+TLS-kopplingen f\u00f6r webben, som l\u00f6ser problem med l\u00e5ng tid f\u00f6r anslutning och f\u00f6rhandling i TCP och eliminerar f\u00f6rdr\u00f6jningar vid paketf\u00f6rlust under data\u00f6verf\u00f6ring. QUIC \u00e4r ett till\u00e4gg till UDP-protokollet som st\u00f6djer multiplexering av flera anslutningar och tillhandah\u00e5ller krypteringsmetoder motsvarande TLS\/SSL. <\/p>\n<p>Huvud <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/document\/d\/1lmL9EF6qKrk7gbazY8bIdvq3Pno2Xj_l_YShP40GLQE\/preview?sle=true#\">funktioner<\/a><\/noindex> QUIC:\n<\/p>\n<ul>\n<li class=\"l\"> H\u00f6g s\u00e4kerhet, liknande TLS (i praktiken ger QUIC m\u00f6jlighet till anv\u00e4ndning av TLS \u00f6ver UDP);\n<\/li>\n<li class=\"l\"> Kontroll av str\u00f6mmens integritet, vilket f\u00f6rhindrar pak f\u00f6rlust;\n<\/li>\n<li class=\"l\"> M\u00f6jlighet att omedelbart uppr\u00e4tta en anslutning (0-RTT, i ungef\u00e4r 75% av fallen kan data \u00f6verf\u00f6ras omedelbart efter att anslutningsinstallationspaketet skickats) och s\u00e4kerst\u00e4lla minimala f\u00f6rdr\u00f6jningar mellan beg\u00e4ran och svar (RTT, Round Trip Time);\n<\/li>\n<li class=\"l\"> Ingen anv\u00e4ndning av samma sekvensnummer vid \u00e5ter\u00f6verf\u00f6ring av paket som g\u00f6r att man kan undvika tveksamhet vid identifieringen av mottagna paket och eliminera timeout-problem;\n<\/li>\n<li class=\"l\"> Paketsf\u00f6rlust p\u00e5verkar endast leveransen av den relaterade str\u00f6mmen och stoppar inte data\u00f6verf\u00f6ringen i parallella str\u00f6mmar som s\u00e4nds via den aktuella anslutningen;\n<\/li>\n<li class=\"l\"> Felkorrekteringsmedel som minimerar f\u00f6rseningar p\u00e5 grund av \u00e5ter\u00f6verf\u00f6ring av f\u00f6rlorade paket. Anv\u00e4ndning av speciella felkorrekteringskoder p\u00e5 paketniv\u00e5 f\u00f6r att minska situationer d\u00e4r \u00e5ter\u00f6verf\u00f6ring av f\u00f6rlorad data kr\u00e4vs.\n<\/li>\n<li class=\"l\"> Gr\u00e4nserna f\u00f6r kryptografiska block \u00f6verensst\u00e4mmer med gr\u00e4nserna f\u00f6r QUIC-paketen, vilket minskar p\u00e5verkan av paketf\u00f6rluster p\u00e5 avkodningen av inneh\u00e5llet i efterf\u00f6ljande paket;\n<\/li>\n<li class=\"l\"> Ingen k\u00f6blockering som uppst\u00e5r i TCP;\n<\/li>\n<li class=\"l\"> St\u00f6d f\u00f6r anslutningsidentifierare som g\u00f6r att tiden f\u00f6r att \u00e5teransluta till mobila kunder minskar;\n<\/li>\n<li class=\"l\"> M\u00f6jlighet att ansluta avancerade mekanismer f\u00f6r \u00f6verbelastningskontroll;\n<\/li>\n<li class=\"l\"> Anv\u00e4ndning av tekniker f\u00f6r kapacitetsprognoser i varje riktning f\u00f6r att s\u00e4kerst\u00e4lla optimal paket\u00f6verf\u00f6ringstakt och f\u00f6rhindra att man hamnar i en \u00f6verbelastad status d\u00e4r paketf\u00f6rluster observeras;\n<\/li>\n<li class=\"l\">  S\u00e4rskild <noindex><a rel=\"nofollow\" href=\"http:\/\/web.cs.wpi.edu\/~claypool\/ms\/quic\/quic-thesis.pdf\">\u00f6kning<\/a><\/noindex> i prestanda och kapacitet j\u00e4mf\u00f6rt med TCP. F\u00f6r videotj\u00e4nster som YouTube har anv\u00e4ndningen av QUIC visat p\u00e5 en minskning av buffran under videoavspelning med 30%.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51807\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043d\u043e\u0447\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 Firefox, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043b\u044f\u0433\u0443\u0442 \u0432 \u043e\u0441\u043d\u043e\u0432\u0443 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 Firefox 72, \u0437\u0430\u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 7 \u044f\u043d\u0432\u0430\u0440\u044f, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 HTTP\/3. \u041f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e HTTP\/3 \u043e\u0442\u043a\u043b\u044e\u0447\u0451\u043d \u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0430\u043a\u0442\u0438\u0432\u0430\u0446\u0438\u0438 \u043e\u043f\u0446\u0438\u0438 &#171;network.http.http3.enabled&#187; \u0432 about:config. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 HTTP\/3 \u0432 Firefox \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u0430 \u043d\u0430 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u043c \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Mozilla \u043f\u0440\u043e\u0435\u043a\u0442\u0435 neqo, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u043c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 QUIC. \u041a\u043e\u0434 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 HTTP\/3 \u0438 [&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-52244","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043d\u043e\u0447\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 Firefox, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043b\u044f\u0433\u0443\u0442 \u0432 \u043e\u0441\u043d\u043e\u0432\u0443 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 Firefox 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