{"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\/it\/blog\/novosti-interneta\/v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3","title":{"rendered":"Nelle versioni notturne di Firefox \u00e8 arrivato il supporto per HTTP\/3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mozilla.org\/en-US\/firefox\/channel\/desktop\/#nightly\">build notturne<\/a><\/noindex>  Firefox, che former\u00e0 la base per il rilascio di Firefox 72, programmato per il 7 gennaio, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1581637\">aggiunta<\/a><\/noindex> \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. <\/p>\n<p>Il supporto per HTTP\/3 in Firefox \u00e8 basato su un progetto sviluppato da Mozilla, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mozilla\/neqo\">neqo<\/a><\/noindex>, che fornisce l'implementazione di client e server per il protocollo QUIC. Il codice dei componenti per supportare HTTP\/3 e QUIC \u00e8 scritto in Rust.<br \/>\nDalla parte del client, il supporto sperimentale per HTTP\/3 \u00e8 gi\u00e0 disponibile  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51526\">aggiunta<\/a><\/noindex> in Chrome e curl, mentre per i server \u00e8 disponibile sotto forma di  <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/tree\/master\/extras\/nginx\">modulo<\/a><\/noindex> per nginx e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/blob\/master\/examples\/http3-server.rs\">un server di test<\/a><\/noindex> basato sulla libreria <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\">implementazione<\/a><\/noindex>  di QUIC e HTTP\/3 in Rust da parte di Cloudflare). Per verificare il funzionamento dei client HTTP\/3, <noindex><a rel=\"nofollow\" href=\"https:\/\/bagder.github.io\/HTTP3-test\/\">sono stati avviati<\/a><\/noindex> alcuni siti di test, la maggior parte dei quali attualmente non si apre correttamente in Firefox (HTTP\/3 \u00e8 ancora in fase di <noindex><a rel=\"nofollow\" href=\"https:\/\/datatracker.ietf.org\/doc\/draft-ietf-quic-http\/\">specifica preliminare<\/a><\/noindex> ed \u00e8 ancora in fase di standardizzazione).<\/p>\n<p>Ricordiamo che HTTP\/3 standardizza l'uso del protocollo QUIC come trasporto per HTTP\/2. Il protocollo <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/quic\/\">QUIC<\/a><\/noindex> (Quick UDP Internet Connections) sviluppato da Google dal 2013 come alternativa alla combinazione di TCP+TLS per il web, risolvendo i problemi dei lunghi tempi di connessione e di handshake di TCP e riducendo i ritardi dovuti alla perdita di pacchetti durante il trasferimento dei dati. QUIC \u00e8 una sovrastruttura del protocollo UDP, che supporta il multiplexing di pi\u00f9 connessioni e fornisce metodi di crittografia equivalenti a TLS\/SSL. <\/p>\n<p>Principali <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/document\/d\/1lmL9EF6qKrk7gbazY8bIdvq3Pno2Xj_l_YShP40GLQE\/preview?sle=true#\">caratteristiche<\/a><\/noindex> QUIC:\n<\/p>\n<ul>\n<li class=\"l\"> Elevata sicurezza, simile a TLS (in sostanza, QUIC offre la possibilit\u00e0 di utilizzare TLS sopra UDP);\n<\/li>\n<li class=\"l\"> Controllo dell'integrit\u00e0 del flusso, prevenendo la perdita di pacchetti;\n<\/li>\n<li class=\"l\"> Possibilit\u00e0 di stabilire una connessione istantaneamente (0-RTT, in circa il 75% dei casi \u00e8 possibile trasmettere dati subito dopo l'invio del pacchetto di inizializzazione) e garantire latenze minime tra l'invio della richiesta e la ricezione della risposta (RTT, Round Trip Time);\n<\/li>\n<li class=\"l\"> Non utilizzare lo stesso numero di sequenza nella ritrasmissione dei pacchetti, per evitare ambiguit\u00e0 nella determinazione dei pacchetti ricevuti e eliminare i timeout;\n<\/li>\n<li class=\"l\"> La perdita di pacchetti influisce solo sulla consegna del flusso correlato e non interrompe la consegna dei dati nei flussi trasmessi in parallelo attraverso la connessione attuale;\n<\/li>\n<li class=\"l\"> Strumenti di correzione degli errori che minimizzano i ritardi causati dalla ritrasmissione dei pacchetti persi. Utilizzo di codici di correzione degli errori a livello di pacchetto per ridurre le situazioni che richiedono la ritrasmissione dei dati del pacchetto perso.\n<\/li>\n<li class=\"l\"> I limiti dei blocchi crittografici sono allineati con i limiti dei pacchetti QUIC, riducendo l'impatto delle perdite di pacchetti sulla decodifica del contenuto dei pacchetti successivi;\n<\/li>\n<li class=\"l\"> Assenza di problemi di blocco della coda TCP;\n<\/li>\n<li class=\"l\"> Supporto dell'identificatore della connessione, che consente di ridurre il tempo per stabilire una connessione di ripristino per i clienti mobili;\n<\/li>\n<li class=\"l\"> Possibilit\u00e0 di collegare meccanismi avanzati di controllo della congestione della connessione;\n<\/li>\n<li class=\"l\"> L'uso di tecniche di previsione della capacit\u00e0 in ogni direzione per garantire un'intensit\u00e0 ottimale nell'invio dei pacchetti, evitando di scivolare in uno stato di sovraccarico in cui si verifica la perdita di pacchetti;\n<\/li>\n<li class=\"l\">  Notevole <noindex><a rel=\"nofollow\" href=\"http:\/\/web.cs.wpi.edu\/~claypool\/ms\/quic\/quic-thesis.pdf\">il guadagno<\/a><\/noindex> prestazioni e capacit\u00e0 rispetto a TCP. Per i servizi video, come YouTube, l'applicazione di QUIC ha mostrato una riduzione delle operazioni di buffering durante la visione dei video del 30%.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <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-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - 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 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 &quot;network.http.http3.enabled&quot; 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\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\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-11-03T21:00:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-02-18T10:59:55+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Nelle versioni notturne di Firefox \u00e8 disponibile il supporto per HTTP\/3 | ProHoster","description":"Nelle versioni notturne di Firefox, che formeranno la base per il rilascio di Firefox 72 previsto per il 7 gennaio, \u00e8 stata aggiunta la supporto per il protocollo HTTP\/3. 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