{"id":102209,"date":"2021-11-04T15:36:48","date_gmt":"2021-11-04T13:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-nginx-1-21-4"},"modified":"2021-11-04T15:36:48","modified_gmt":"2021-11-04T13:36:48","slug":"vypusk-nginx-1-21-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-nginx-1-21-4","title":{"rendered":"Uscita di nginx 1.21.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata rilasciata la versione principale di nginx 1.21.4, nell'ambito della quale continua lo sviluppo di nuove funzionalit\u00e0 (nella parallela versione stabile 1.20 vengono apportate solo modifiche per risolvere gravi errori e vulnerabilit\u00e0).     <\/p>\n<p>Variazioni principali:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata interrotta la supporto per l'installazione di connessioni HTTP\/2 utilizzando l'estensione NPN (Next Protocol Negotiation) invece di ALPN;\n<li class=\"l\"> \u00c8 stata garantita la chiusura <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/ssl-sertifikat\/\"   title=\"SSL\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2298\">SSL<\/a>-delle connessioni quando il client utilizza l'estensione ALPN, se durante la negoziazione delle connessioni non viene selezionato un protocollo supportato;\n<li class=\"l\"> Nella direttiva \u00absendfile_max_chunk\u00bb il valore predefinito \u00e8 stato modificato a 2 megabyte;\n<li class=\"l\"> Nel modulo stream \u00e8 stata aggiunta la direttiva proxy_half_close, che consente di configurare il comportamento alla chiusura di una connessione TCP proxy su uno dei lati (\u00abTCP half-close\u00bb);\n<li class=\"l\"> Nel modulo stream \u00e8 stata aggiunta la direttiva ssl_alpn per determinare l'elenco dei protocolli ALPN supportati (h2, http\/1.1) e la variabile $ssl_alpn_protocol, che riflette il protocollo ALPN concordato con il client;\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per la chiamata SSL_sendfile() utilizzando OpenSSL 3.0;\n<li class=\"l\"> \u00c8 stata aggiunta la direttiva \u00abmp4_start_key_frame\u00bb nel modulo ngx_http_mp4_module per lo streaming video a partire dal fotogramma chiave.\n<li class=\"l\"> \u00c8 stata corretta l'impostazione della variabile $content_length quando si utilizza il chunked transfer encoding;\n<li class=\"l\"> \u00c8 stato corretto un errore di caching della connessione quando si riceve una risposta di lunghezza errata dal backend proxy;\n<li class=\"l\"> Corretto il logging a livello \u00aberror\u00bb anzich\u00e9 \u00abinfo\u00bb in caso di intestazioni non valide dai backend;\n<li class=\"l\"> Sono stati corretti gli errori di blocco delle richieste quando si utilizza HTTP\/2 e la direttiva aio_write.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56096\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 nginx 1.21.4, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u043e\u0432\u044b\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 (\u0432 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0435 1.20 \u0432\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439). \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u041f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 HTTP\/2-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f NPN (Next Protocol Negotiation) \u0432\u043c\u0435\u0441\u0442\u043e ALPN; \u041e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u043e 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