{"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\/et\/blog\/news\/v-nochnyh-sborkah-firefox-poyavilas-podderzhka-http-3","title":{"rendered":"Firefoxi \u00f6istes versioonides on lisandunud tugi HTTP\/3-le","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Uues <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mozilla.org\/en-US\/firefox\/channel\/desktop\/#nightly\">\u00f6\u00f6bikogudesse<\/a><\/noindex>  Firefox, mis asetatakse Firefox 72 versiooni aluseks, mis on planeeritud 7. jaanuariks, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1581637\">lisatud<\/a><\/noindex> HTTP\/3 protokolli tugi. Vaikimisi on HTTP\/3 keelatud ja selle aktiveerimiseks on vajalik valiku \u201enetwork.http.http3.enabled\u201c aktiveerimine men\u00fc\u00fcs about:config. <\/p>\n<p>HTTP\/3 tugi Firefoxis p\u00f5hineb Mozilla arendataval projektis <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mozilla\/neqo\">neqo<\/a><\/noindex>, mis pakub protokolli QUIC klient- ja serveriteost. HTTP\/3 ja QUIC toe komponentide kood on kirjutatud Rust'i keeles.<br \/>\nEksperimentaalne HTTP\/3 tugi on samuti juba klienttarkvaras  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51526\">lisatud<\/a><\/noindex> Chrome'is ja curl'is, ning serverite jaoks on see saadaval  <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/tree\/master\/extras\/nginx\">moodulina<\/a><\/noindex> nginx'i jaoks ja <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/blob\/master\/examples\/http3-server.rs\">testserverina<\/a><\/noindex> raamatukogul <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\">rakendus<\/a><\/noindex>  QUIC ja HTTP\/3 Rust'i keeles Cloudflare'ilt). HTTP\/3 klientide t\u00f6\u00f6 kontrollimiseks <noindex><a rel=\"nofollow\" href=\"https:\/\/bagder.github.io\/HTTP3-test\/\">on k\u00e4ivitatud<\/a><\/noindex> mitu testimisveebi, millest enamik ei avane Firefoxis korrektselt (HTTP\/3 on hetkel <noindex><a rel=\"nofollow\" href=\"https:\/\/datatracker.ietf.org\/doc\/draft-ietf-quic-http\/\">esialgne spetsifikatsioon<\/a><\/noindex> ja ei ole l\u00f5plikult standardiseeritud).<\/p>\n<p>Tuletame meelde, et HTTP\/3 standardiseerib QUIC protokolli kasutamise transpordina HTTP\/2 jaoks. Protokoll <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/quic\/\">QUIC<\/a><\/noindex> (Quick UDP Internet Connections) areneb alates 2013. aastast Google'i poolt alternatiivina TCP+TLS \u00fchenduse jaoks, lahendades TCP pika \u00fchenduse loomise ja kokku leppimise probleemid ning k\u00f5rvaldab pakettide kadumise t\u00f5ttu tekkivad viivitused andmete edastamise protsessis. QUIC on UDP protokolli peal olev lisakiht, mis toetab mitme \u00fchenduse mitmekordistamist ja pakub kr\u00fcpteerimismeetodeid, mis on v\u00f5rdsed TLS\/SSL-iga. <\/p>\n<p>Peamised <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/document\/d\/1lmL9EF6qKrk7gbazY8bIdvq3Pno2Xj_l_YShP40GLQE\/preview?sle=true#\">omadused<\/a><\/noindex> QUIC:\n<\/p>\n<ul>\n<li class=\"l\"> K\u00f5rge turvalisus, v\u00f5rreldav TLS'iga (QUIC pakub tegelikult v\u00f5imalust kasutada TLS'i UDP peal);\n<\/li>\n<li class=\"l\"> Voolu terviklikkuse j\u00e4lgimine, mis takistab pakettide kaotust;\n<\/li>\n<li class=\"l\"> V\u00f5ime koheselt \u00fchendust luua (0-RTT, umbes 75% juhtudest saab andmeid edastada kohe p\u00e4rast \u00fchenduse loomise paketi saatmist) ja tagada minimaalne viivitus k\u00fcsimise ja vastuse saamise vahel (RTT, Round Trip Time);\n<\/li>\n<li class=\"l\"> Paketi sama j\u00e4rjestuse numbri uuesti edastamisel mittekasutamine, mis v\u00f5imaldab v\u00e4ltida segadust vastuv\u00f5etud pakettide m\u00e4\u00e4ratlemisel ja kaotada aegumised;\n<\/li>\n<li class=\"l\"> Paketi kaotus m\u00f5jutab ainult selle kaasnevat voolu ja ei peata andmete edastamist samaaegselt praeguse \u00fchenduse kaudu edastatavatest voogudest;\n<\/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.\n<\/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;\n<\/li>\n<li class=\"l\"> TCP j\u00e4rjekorra ummistumise probleemide puudumine;\n<\/li>\n<li class=\"l\"> \u00dchenduse identifikaatori tugi, mis v\u00f5imaldab v\u00e4hendada mobiilsete klientide uuesti \u00fchendamise aega;\n<\/li>\n<li class=\"l\"> V\u00f5ime \u00fchendada laienevaid \u00fchenduse \u00fclekande kontrolli mehhanisme;\n<\/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;\n<\/li>\n<li class=\"l\">  T\u00e4htis <noindex><a rel=\"nofollow\" href=\"http:\/\/web.cs.wpi.edu\/~claypool\/ms\/quic\/quic-thesis.pdf\">kasv<\/a><\/noindex> t\u00f5hususes ja l\u00e4bilaskev\u00f5imes v\u00f5rreldes TCP-ga. Videoteenuste, nagu YouTube, puhul n\u00e4itas QUIC kasutamine video vaatamise jooksul uuesti vahepealsete operatsioonide v\u00e4henemist 30% v\u00f5rra.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <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 5.0.1.1 - 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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