{"id":39022,"date":"2019-10-31T22:27:26","date_gmt":"2019-10-31T19:27:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kompaniya-cloudflare-realizovala-modul-dlya-podderzhki-http-3-v-nginx\/"},"modified":"2019-10-31T22:27:26","modified_gmt":"2019-10-31T19:27:26","slug":"kompaniya-cloudflare-realizovala-modul-dlya-podderzhki-http-3-v-nginx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/kompaniya-cloudflare-realizovala-modul-dlya-podderzhki-http-3-v-nginx","title":{"rendered":"F\u00f6retaget Cloudflare har implementerat ett modul f\u00f6r st\u00f6d av HTTP\/3 i NGINX","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Cloudflare <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.cloudflare.com\/experiment-with-http-3-using-nginx-and-quiche\/\">beredd av<\/a><\/noindex>  <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/tree\/master\/extras\/nginx\">modul<\/a><\/noindex> f\u00f6r att m\u00f6jligg\u00f6ra st\u00f6d f\u00f6r protokollet HTTP\/3 i NGINX. Modulen \u00e4r utformad som ett till\u00e4gg till det bibliotek som utvecklas av Cloudflare <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50061\">quiche<\/a><\/noindex> med implementering av transportprotokollet QUIC och HTTP\/3. Koden f\u00f6r quiche \u00e4r skriven i Rust, medan modulen f\u00f6r NGINX \u00e4r skriven i C och anropar biblioteket med hj\u00e4lp av dynamisk l\u00e4nkning. Resultaten <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/tree\/master\/extras\/nginx\">\u00f6ppna<\/a><\/noindex> under BSD-licensen.<\/p>\n<p>F\u00f6r att sammanst\u00e4lla r\u00e4cker det att ladda ner <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/blob\/master\/extras\/nginx\/nginx-1.16.patch\">patch<\/a><\/noindex> till nginx 1.16 och <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\">kod<\/a><\/noindex> quiche-biblioteken, varefter nginx m\u00e5ste kompileras med alternativen &#171;&#8212;with-http_v3_module &#8212;with-quiche=..\\\/quiche&#187;. Vid kompilering b\u00f6r TLS-st\u00f6det baseras p\u00e5 BoringSSL-biblioteket (&#171;&#8212;with-openssl=..\\\/quiche\\\/deps\\\/boringssl&#187;), anv\u00e4ndning av OpenSSL st\u00f6ds inte f\u00f6r n\u00e4rvarande. F\u00f6r att ta emot anslutningar m\u00e5ste direktivet listen l\u00e4ggas till i inst\u00e4llningarna med flaggan &#171;quic&#187; (till exempel &#171;listen 443 quic reuseport&#187;).<\/p>\n<p>St\u00f6d f\u00f6r HTTP\/3 har redan lagts till i experimentella versioner av Chrome Canary och verktyget curl. P\u00e5 serversidan har det fortfarande kr\u00e4vts att anv\u00e4nda begr\u00e4nsade, separata <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/quiche\/blob\/master\/examples\/http3-server.rs\">testimplementationer<\/a><\/noindex>. M\u00f6jligheten att hantera HTTP\/3 i nginx kommer att f\u00f6renkla distributionen av servrar med st\u00f6d f\u00f6r HTTP\/3 avsev\u00e4rt och g\u00f6ra testimplementering av det nya protokollet mer tillg\u00e4ngligt. Den inbyggda st\u00f6det f\u00f6r HTTP\/3 i nginx <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/openforum\/vsluhforumID3\/118512.html#64\">f\u00f6rv\u00e4ntas<\/a><\/noindex> i version 1.17.x f\u00f6rv\u00e4ntas inom 6-12 m\u00e5nader.<\/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<\/li>\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=51695\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0430 \u043c\u043e\u0434\u0443\u043b\u044c \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 HTTP\/3 \u0432 NGINX. \u041c\u043e\u0434\u0443\u043b\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d \u0432 \u0444\u043e\u0440\u043c\u0435 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u043d\u0430\u0434 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0432 Cloudflare \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u043e\u0439 quiche \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 QUIC \u0438 HTTP\/3. \u041a\u043e\u0434 quiche \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust, \u043d\u043e \u0441\u0430\u043c \u043c\u043e\u0434\u0443\u043b\u044c \u0434\u043b\u044f NGINX \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u043e\u0431\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0441\u0432\u044f\u0437\u044b\u0432\u0430\u043d\u0438\u044f. \u041d\u0430\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u044b \u043f\u043e\u0434 [&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-39022","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=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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