{"id":99501,"date":"2021-03-21T10:22:35","date_gmt":"2021-03-21T08:22:35","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-nochnyh-i-beta-sborkah-firefox-vklyuchena-po-umolchaniyu-podderzhka-http-3"},"modified":"2021-03-21T10:22:35","modified_gmt":"2021-03-21T08:22:35","slug":"v-nochnyh-i-beta-sborkah-firefox-vklyuchena-po-umolchaniyu-podderzhka-http-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/v-nochnyh-i-beta-sborkah-firefox-vklyuchena-po-umolchaniyu-podderzhka-http-3","title":{"rendered":"U no\u0107nim i beta verzijama Firefox-a uklju\u010dena je po defaultu podr\u0161ka za HTTP\/3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>U no\u0107nim izradama Firefoxa, kao i u beta verziji, podr\u0161ka za HTTP\/3 je uklju\u010dena prema zadanim postavkama. U stabilnoj verziji, uklju\u010divanje HTTP\/3 planirano je za izdanja Firefoxa 88, zakazanog za 20. travnja. U Chromeu, selektivno aktiviranje HTTP\/3 zapo\u010delo je u listopadu 2020. godine.      <\/p>\n<p>Podr\u0161ka za HTTP\/3 u Firefoxu temelji se na projektu neqo koji je razvila tvrtka Mozilla, koji osigurava implementaciju klijenta i <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/dts-los-angeles\/\"   title=\"poslu\u017eitelja\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3679\">poslu\u017eitelja<\/a> za protokol QUIC. Kod komponenti za podr\u0161ku HTTP\/3 i QUIC napisan je u jeziku Rust. Za upravljanje uklju\u010divanjem HTTP\/3 u about:config predvi\u0111ena je opcija \"network.http.http3.enabled\". U klijentkom softveru eksperimentalna podr\u0161ka za HTTP\/3 tako\u0111er je ve\u0107 dodana u Chrome i curl, a za  <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/\"   title=\"poslu\u017eitelja\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1559\">poslu\u017eitelja<\/a> dostupna u nginxu, kao i u obliku nginx modula i testnog servera od tvrtke Cloudflare. Za provjeru rada klijenata HTTP\/3 pokrenuto je nekoliko testnih web stranica.        <\/p>\n<p>Protokol HTTP\/3 jo\u0161 uvijek je u fazi skice specifikacije i nije kona\u010dno standardiziran u IETF-u. HTTP\/3 definira kori\u0161tenje protokola QUIC kao transporta za HTTP\/2. Protokol QUIC (Quick UDP Internet Connections) razvija se od 2013. godine od strane tvrtke Google kao alternativa kombinaciji TCP+TLS za web, rje\u0161avaju\u0107i probleme s vremenom uspostavljanja i dogovaranja konekcija u TCP-u i eliminiraju\u0107i ka\u0161njenja uzrokovana gubitkom paketa tijekom prijenosa podataka. QUIC je nadogradnja na UDP protokol koja podr\u017eava multiplexiranje vi\u0161e konekcija i osigurava metode \u0161ifriranja jednake TLS\/SSL-u. Tijekom razvoja standarda u IETF-u, u protokol su unesene promjene, \u0161to je dovelo do stvaranja dvije paralelne grane, jedne za HTTP\/3, a druge podr\u017eane od strane Googlea (Chrome podr\u017eava obje varijante).     <\/p>\n<p>Glavne zna\u010dajke QUIC-a:  <\/p>\n<ul>\n<li class=\"l\"> Visoka sigurnost, sli\u010dna TLS-u (u su\u0161tini QUIC pru\u017ea mogu\u0107nost kori\u0161tenja TLS-a preko UDP-a);  <\/li>\n<li class=\"l\"> Kontrola cjelovitosti toka, koja sprje\u010dava gubitak paketa;    <\/li>\n<li class=\"l\"> Mogu\u0107nost trenutnog uspostavljanja veze (0-RTT, u otprilike 75% slu\u010dajeva podaci se mogu prenositi odmah nakon slanja paketa za uspostavljanje veze) i osiguranje minimalnih ka\u0161njenja izme\u0111u slanja zahtjeva i primanja odgovora (RTT, Round Trip Time);    <\/li>\n<li class=\"l\"> Kori\u0161tenje drugog broja sekvencijalnog paketa prilikom ponovnog slanja, \u0161to omogu\u0107ava izbjegavanje nejasno\u0107a prilikom odre\u0111ivanja primljenih paketa i eliminira vrijeme \u010dekanja;  <\/li>\n<li class=\"l\"> Gubitak paketa utje\u010de samo na isporuku povezane struje i ne zaustavlja isporuku podataka u paralelno prijenosima kroz trenutno uspostavljene struje;    <\/li>\n<li class=\"l\"> Sredstva za ispravak gre\u0161aka, koja minimiziraju ka\u0161njenja uzrokovana ponovnim slanjem izgubljenih paketa. Kori\u0161tenje specijalnih kodova za ispravak gre\u0161aka na razini paketa za smanjenje situacija koje zahtijevaju ponovno slanje podataka izgubljenog paketa.   <\/li>\n<li class=\"l\"> Granice kriptografskih blokova su poravnate s granicama QUIC paketa, \u0161to smanjuje utjecaj gubitaka paketa na dekodiranje sadr\u017eaja sljede\u0107ih paketa;    <\/li>\n<li class=\"l\"> Nema problema s blokiranjem TCP reda;    <\/li>\n<li class=\"l\"> Podr\u0161ka za identifikator veze, koji omogu\u0107ava smanjenje vremena potrebnog za ponovnu uspostavu veze za mobilne klijente;  <\/li>\n<li class=\"l\"> Mogu\u0107nost povezivanja s pro\u0161irenim mehanizmima kontrole optere\u0107enja veze;  <\/li>\n<li class=\"l\"> Kori\u0161tenje tehnike predvi\u0111anja propusnosti u svakom smjeru za osiguranje optimalne intenziteta slanja paketa, sprje\u010davaju\u0107i povratak u stanje preoptere\u0107enja u kojem se primje\u0107uje gubitak paketa;    <\/li>\n<li class=\"l\">  Primjetan porast performansi i propusnosti u usporedbi s TCP-om. Za video servise poput YouTubea, kori\u0161tenje QUIC-a pokazalo je smanjenje operacija ponovnog predmemoriranja tijekom gledanja videa za 30%.          <\/li>\n<\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54801\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043d\u043e\u0447\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 Firefox, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432 \u0431\u0435\u0442\u0430-\u0432\u0435\u0440\u0441\u0438\u0438 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 HTTP\/3. \u0412 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 HTTP\/3 \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043e \u043d\u0430 \u0432\u044b\u043f\u0443\u0441\u043a Firefox 88, \u0437\u0430\u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 20 \u0430\u043f\u0440\u0435\u043b\u044f. \u0412 Chrome \u0432\u044b\u0431\u043e\u0440\u043e\u0447\u043d\u0430\u044f \u0430\u043a\u0442\u0438\u0432\u0430\u0446\u0438\u044f HTTP\/3 \u043d\u0430\u0447\u0430\u043b\u0430\u0441\u044c \u0432 \u043e\u043a\u0442\u044f\u0431\u0440\u0435 2020 \u0433\u043e\u0434\u0430. \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 [&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-99501","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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