{"id":105423,"date":"2022-10-31T09:37:08","date_gmt":"2022-10-31T07:37:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-outline-ss-server-1-4-realizaczii-shadowsocks-proksi-ot-proekta-outline"},"modified":"2022-10-31T09:37:08","modified_gmt":"2022-10-31T07:37:10","slug":"vypusk-outline-ss-server-1-4-realizaczii-shadowsocks-proksi-ot-proekta-outline","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-outline-ss-server-1-4-realizaczii-shadowsocks-proksi-ot-proekta-outline","title":{"rendered":"Rilascio di outline-ss-server 1.4, implementazione del proxy Shadowsocks del progetto Outline","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stato pubblicato il rilascio del server proxy outline-ss-server 1.4, che utilizza il protocollo Shadowsocks per nascondere la natura del traffico, aggirare i firewall e ingannare i sistemi di ispezione dei pacchetti. Il server \u00e8 sviluppato dal progetto Outline, che fornisce anche un'interfaccia di gestione e un insieme di applicazioni client, consentendo un rapido deployment di server Shadowsocks multi-utente basati su outline-ss-server in ambienti cloud pubblici o su hardware proprio, gestendoli tramite un'interfaccia web e organizzando l'accesso degli utenti tramite chiavi. La sviluppo e la manutenzione del codice sono gestite da Jigsaw, una divisione di Google creata per sviluppare strumenti per aggirare la censura e promuovere il libero scambio di informazioni.          <\/p>\n<p>Outline-ss-server \u00e8 scritto in linguaggio Go e distribuito sotto licenza Apache 2.0. Come base \u00e8 stato utilizzato il codice del proxy<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3868\">server<\/a> go-shadowsocks2, creato dalla comunit\u00e0 degli sviluppatori di Shadowsocks. Negli ultimi tempi, l'attivit\u00e0 principale del progetto Shadowsocks \u00e8 focalizzata sullo sviluppo di un nuovo server in linguaggio Rust, mentre l'implementazione in linguaggio Go non \u00e8 stata aggiornata da oltre un anno e mostra un ritardo significativo nelle funzionalit\u00e0.    <\/p>\n<p>Le differenze di outline-ss-server rispetto a go-shadowsocks2 riguardano il supporto per la connessione di pi\u00f9 utenti attraverso una singola porta di rete, la possibilit\u00e0 di aprire pi\u00f9 porte di rete per ricevere connessioni, il supporto per il riavvio a caldo e l'aggiornamento della configurazione senza interrompere le connessioni, nonch\u00e9 strumenti incorporati di monitoraggio e modifica del traffico basati sulla piattaforma prometheus.io.    <center><img decoding=\"async\" alt=\"Rilascio di outline-ss-server 1.4, implementazione del proxy Shadowsocks del progetto Outline\" src=\"\/wp-content\/uploads\/2022\/10\/75060b2894a528b519d09823b5363b13.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>In outline-ss-server \u00e8 stata inoltre aggiunta una protezione contro attacchi legati all'invio di richieste di verifica e alla riproduzione del traffico. L'attacco tramite richieste di verifica mira a determinare la presenza del proxy, ad esempio l'attaccante pu\u00f2 inviare al server Shadowsocks target set di dati di diverse dimensioni e analizzare quale volume di dati il server legger\u00e0 prima di rilevare un errore e chiudere la connessione. L'attacco di riproduzione del traffico si basa sull'intercettazione della sessione tra il client e <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-prohoster\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3067\">server<\/a> con un successivo tentativo di reinvio dei dati intercettati per determinare la presenza del proxy.     <\/p>\n<p>Per proteggere dalle attacchi tramite richieste di verifica, il server outline-ss-server non interrompe la connessione e non mostra errori quando riceve dati errati, ma continua ad accettare informazioni, comportandosi come una sorta di buco nero. Per evitare la riproduzione dei dati, le informazioni ricevute dal cliente vengono ulteriormente verificate per evitare ripetizioni basate su checksum, conservati per le ultime migliaia di sequenze di handshake (massimo 40.000, la dimensione \u00e8 impostata all'avvio del server e consuma 20 byte di memoria per sequenza). Per bloccare le risposte ripetute dal server, vengono utilizzati codici di autenticazione HMAC con tag a 32 bit in tutte le sequenze di handshake server.        <\/p>\n<p>Per il livello di occultamento del traffico, il protocollo Shadowsocks nell'implementazione outline-ss-server \u00e8 simile al trasporto connesso Obfs4 nella rete anonima Tor. Questo protocollo \u00e8 stato creato per eludere i sistemi di censura del traffico in Cina (\"Il Grande firewall cinese\") e consente di nascondere in modo piuttosto efficace il traffico instradato attraverso un altro server (il traffico \u00e8 difficile da identificare grazie all'aggiunta di un'intestazione casuale e alla simulazione di un flusso continuo).     <\/p>\n<p>Per il protocollo di proxying delle richieste viene utilizzato SOCKS5 \u2014 un proxy con supporto SOCKS5 viene eseguito sulla sistema locale che incapsula il traffico verso un server remoto, dal quale vengono effettivamente eseguite le richieste. Il traffico tra cliente e server \u00e8 collocato in un tunnel crittografato (\u00e8 supportata la crittografia autenticata AEAD_CHACHA20_POLY1305, AEAD_AES_128_GCM e AEAD_AES_256_GCM), la cui occultazione \u00e8 l'obiettivo primario di Shadowsocks. Sono supportati tunneling TCP e UDP, cos\u00ec come la creazione di tunnel arbitrari non limitati a SOCKS5 attraverso l'uso di plugin, simili ai trasporti connessi in Tor.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58011\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u043a\u0441\u0438-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 outline-ss-server 1.4, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Shadowsocks \u0434\u043b\u044f \u0441\u043a\u0440\u044b\u0442\u0438\u044f \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0430 \u0442\u0440\u0430\u0444\u0438\u043a\u0430, \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0436\u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u044d\u043a\u0440\u0430\u043d\u043e\u0432 \u0438 \u043e\u0431\u043c\u0430\u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c \u0438\u043d\u0441\u043f\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u043e\u0432. \u0421\u0435\u0440\u0432\u0435\u0440 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c Outline, \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u043c \u043e\u0431\u0432\u044f\u0437\u043a\u0443 \u0438\u0437 \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0431\u044b\u0441\u0442\u0440\u043e \u0440\u0430\u0437\u0432\u0451\u0440\u0442\u044b\u0432\u0430\u0442\u044c \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 Shadowsocks-\u0441\u0435\u0440\u0432\u0435\u0440\u044b \u043d\u0430 \u0431\u0430\u0437\u0435 outline-ss-server \u0432 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u0445 \u043e\u0431\u043b\u0430\u0447\u043d\u044b\u0445 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u0445 \u0438\u043b\u0438 \u043d\u0430 \u0441\u0432\u043e\u0451\u043c \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438, \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0438\u043c\u0438 \u0447\u0435\u0440\u0435\u0437 web-\u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105424,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105423","post","type-post","status-publish","format-standard","has-post-thumbnail","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=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u043a\u0441\u0438-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 outline-ss-server 1.4, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Shadowsocks \u0434\u043b\u044f \u0441\u043a\u0440\u044b\u0442\u0438\u044f \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0430 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