{"id":36712,"date":"2019-10-31T22:13:19","date_gmt":"2019-10-31T19:13:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-firefox-budet-provedyon-eksperiment-svyazannyj-s-dns-over-https\/"},"modified":"2019-10-31T22:13:19","modified_gmt":"2019-10-31T19:13:19","slug":"v-firefox-budet-provedyon-eksperiment-svyazannyj-s-dns-over-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-firefox-budet-provedyon-eksperiment-svyazannyj-s-dns-over-https","title":{"rendered":"In Firefox sar\u00e0 condotto un esperimento relativo al DNS-over-HTTPS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sviluppatori Mozilla <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.mozilla.org\/futurereleases\/2019\/07\/31\/dns-over-https-doh-update-detecting-managed-networks-and-user-choice\/\">hanno comunicato<\/a><\/noindex> sullo svolgimento di una nuova ricerca in preparazione all'implementazione della funzione di interrogazione DNS su HTTPS (DoH, DNS over HTTPS). Durante l'esperimento condotto sui sistemi di alcuni utenti delle versioni di Firefox negli Stati Uniti, verr\u00e0 raccolta statistica sull'utilizzo dei sistemi di parental control e dei resolver aziendali. \u00c8 possibile rinunciare alla partecipazione all'esperimento attraverso la pagina &#171;about:studies&#187; (lo studio \u00e8 elencato come &#171;Detection Logic for DNS-over-HTTPS&#187;).<\/p>\n<p>Per la ricerca saranno raccolti dati anonimizzati, che includono solo contatori, senza indicazione di indirizzi e domini specifici. Per identificare i sistemi di controllo parentale sar\u00e0 effettuata una richiesta per la risoluzione del nome exampleadultsite.com e, se non corrisponde all'IP effettivo, si pu\u00f2 considerare che sia attiva la blocco dei contenuti per adulti a livello di DNS. Saranno inoltre valutati <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/lir\/ipv4\/\"   title=\"Indirizzi IP\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"633\">Indirizzi IP<\/a> i risultati restituiti per Google e YouTube, per verificare la loro sostituzione con restrict.youtube.com, forcesafesearch.google.com e restrictmoderate.youtube.com. <\/p>\n<p>Per identificare l'uso di resolver aziendali interni, gli host determinati all'apertura dei siti saranno verificati per l'uso di domini di primo livello (TLD) atipici e per il ritorno di indirizzi intranet per essi. La motivazione dietro l'esperimento sono state le preoccupazioni che l'attivazione predefinita di DNS-over-HTTPS potrebbe interferire con il funzionamento dei sistemi di controllo parentale che operano tramite DNS, e creare problemi per gli utenti delle reti aziendali che utilizzano server DNS che forniscono informazioni su domini interni non visibili nella rete esterna.<\/p>\n<p>Ricordiamo che DoH pu\u00f2 rivelarsi utile per escludere fughe di informazioni sui nomi host richiesti attraverso i server DNS dei provider, combattere gli attacchi MITM e la sostituzione del traffico DNS, contrastare le blocchi a livello DNS o organizzare il funzionamento nel caso in cui non sia possibile accedere direttamente ai server DNS (ad esempio, quando si lavora tramite proxy). In una situazione normale, le richieste DNS vengono inviate direttamente a determinati server DNS configurati nel sistema, mentre nel caso di DoH la richiesta per determinare l'indirizzo IP dell'host \u00e8 incapsulata nel traffico HTTPS e inviata a un server HTTP, dove il resolver elabora le richieste tramite Web API. Lo standard attuale DNSSEC utilizza la crittografia solo per l'autenticazione del cliente e del server, ma non protegge il traffico dall'intercettazione e non garantisce la riservatezza delle richieste. <\/p>\n<p>Per abilitare il DoH in about:config \u00e8 necessario modificare il valore della variabile network.trr.mode, supportata a partire da Firefox 60. Il valore 0 disabilita completamente il DoH; 1 &#8212; utilizza DNS o DoH, a seconda di ci\u00f2 che risulta pi\u00f9 veloce; 2 &#8212; utilizza DoH di default, con DNS come opzione di riserva; 3 &#8212; utilizza solo DoH; 4 &#8212; modalit\u00e0 di mirror in cui DoH e DNS sono utilizzati parallelamente. Di default, viene utilizzato il server DNS di CloudFlare, ma pu\u00f2 essere cambiato tramite il parametro network.trr.uri; ad esempio, si pu\u00f2 impostare &#171;https:\/\/dns.google.com\/experimental&#187; o &#171;https:\/\/9.9.9.9\/dns-query&#187;.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51204\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Mozilla \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 \u043e \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 \u043d\u043e\u0432\u043e\u0433\u043e \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043a\u0438 \u043a 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\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0438 \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0445 \u0440\u0435\u0437\u043e\u043b\u0432\u0435\u0440\u043e\u0432. \u041e\u0442\u043a\u0430\u0437\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u0443\u0447\u0430\u0441\u0442\u0438\u044f \u0432 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0435 \u043c\u043e\u0436\u043d\u043e \u0447\u0435\u0440\u0435\u0437 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0443 &#171;about:studies&#187; (\u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0435 [&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-36712","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=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Mozilla \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 \u043e \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/it\/blog\/news\/v-firefox-budet-provedyon-eksperiment-svyazannyj-s-dns-over-https\" \/>\n\t<meta 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