{"id":38121,"date":"2019-10-31T22:21:46","date_gmt":"2019-10-31T19:21:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-chrome-78-nachnutsya-eksperimenty-s-vklyucheniem-dns-over-https\/"},"modified":"2019-10-31T22:21:46","modified_gmt":"2019-10-31T19:21:46","slug":"v-chrome-78-nachnutsya-eksperimenty-s-vklyucheniem-dns-over-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/v-chrome-78-nachnutsya-eksperimenty-s-vklyucheniem-dns-over-https","title":{"rendered":"En Chrome 78 comenzar\u00e1n los experimentos con la inclusi\u00f3n de DNS-over-HTTPS.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Siguiendo a <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51439\">Mozilla<\/a><\/noindex> la empresa Google <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.chromium.org\/2019\/09\/experimenting-with-same-provider-dns.html\">inform\u00f3<\/a><\/noindex> sobre la intenci\u00f3n de realizar un experimento para comprobar la implementaci\u00f3n de \"DNS sobre HTTPS\" (DoH, DNS over HTTPS) desarrollada para el navegador Chrome. En la versi\u00f3n 78 de Chrome, programada para el 22 de octubre, algunas categor\u00edas de usuarios tendr\u00e1n esta opci\u00f3n habilitada por defecto. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.chromium.org\/developers\/dns-over-https\">convertidas<\/a><\/noindex> En el experimento de habilitaci\u00f3n de DoH, solo participar\u00e1n los usuarios cuyos ajustes de sistema actuales indiquen ciertos proveedores de DNS reconocidos como compatibles con DoH. <\/p>\n<p>La lista blanca de proveedores de DNS incluye <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/tips\/info\/3087.shtml\">servicios<\/a><\/noindex> Google (8.8.8.8, 8.8.4.4), Cloudflare (1.1.1.1, 1.0.0.1), OpenDNS (208.67.222.222, 208.67.220.220), Quad9 (9.9.9.9, 149.112.112.112), Cleanbrowsing (185.228.168.168, 185.228.169.168) y DNS.SB (185.222.222.222, 185.184.222.222). Si uno de los servidores DNS mencionados est\u00e1 indicado en la configuraci\u00f3n de DNS del usuario, DoH se activar\u00e1 por d\u00e9faut en Chrome. Para aquellos que utilizan servidores DNS proporcionados por su proveedor de internet local, todo permanecer\u00e1 sin cambios y se seguir\u00e1 utilizando el resolvedor de sistema para las consultas DNS. <\/p>\n<p>Una diferencia importante en la implementaci\u00f3n de DoH en Firefox, donde la habilitaci\u00f3n gradual de DoH por defecto <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51439\">comenzar\u00e1<\/a><\/noindex> a finales de septiembre, es la ausencia de vinculaci\u00f3n a un solo servicio de DoH. Si en Firefox se utiliza por defecto <noindex><a rel=\"nofollow\" href=\"https:\/\/support.mozilla.org\/en-US\/kb\/firefox-dns-over-https\">se utiliza<\/a><\/noindex> el servidor DNS de CloudFlare, en Chrome solo se actualizar\u00e1 el m\u00e9todo de trabajo con DNS a un servicio equivalente, sin cambiar al proveedor de DNS. Por ejemplo, si un usuario tiene configurado el DNS 8.8.8.8 en sus ajustes, en Chrome se utilizar\u00e1 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/document\/d\/15Ss0OaJeb-T3g2RMwgikHvsC0CPKd-MLeGeetv1wYY4\/edit#\">activar\u00e1<\/a><\/noindex> El servicio DoH de Google (\"https:\/\/dns.google.com\/dns-query\"), y si DNS es 1.1.1.1, entonces el servicio DoH de Cloudflare (\"https:\/\/cloudflare-dns.com\/dns-query\"). <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/curl\/curl\/wiki\/DNS-over-HTTPS#publicly-available-servers\">as\u00ed sucesivamente.<\/a><\/noindex><\/p>\n<p>Si se desea, el usuario puede activar o desactivar DoH mediante la configuraci\u00f3n \"chrome:\/\/flags\/#dns-over-https\". Se admiten tres modos de operaci\u00f3n: \"secure\", \"automatic\" y \"off\". En el modo \"secure\", los hosts se determinan \u00fanicamente en base a los valores seguros previamente almacenados en cach\u00e9 (obtenidos a trav\u00e9s de una conexi\u00f3n segura) y las solicitudes a trav\u00e9s de DoH, sin retroceder al DNS convencional. En el modo \"automatic\", si DoH y la cach\u00e9 segura no est\u00e1n disponibles, se permite obtener datos de la cach\u00e9 no segura y realizar consultas a trav\u00e9s del DNS tradicional. En el modo \"off\", primero se verifica la cach\u00e9 global y si no hay datos, la solicitud se env\u00eda a trav\u00e9s del DNS del sistema. El modo se configura a trav\u00e9s de <noindex><a rel=\"nofollow\" href=\"https:\/\/cs.chromium.org\/chromium\/src\/net\/dns\/dns_config.h?l=27&#038;rcl=3cf5b735fc8dcce6d9d8a5a9591d2a3700dceca4\">la configuraci\u00f3n<\/a><\/noindex> kDnsOverHttpsMode, y el patr\u00f3n de coincidencia de servidores a trav\u00e9s de kDnsOverHttpsTemplates.<\/p>\n<p>El experimento para activar DoH se realizar\u00e1 en todas las plataformas compatibles con Chrome, excepto Linux e iOS debido a la complejidad de procesar la configuraci\u00f3n del resolutor y a la limitaci\u00f3n del acceso a la configuraci\u00f3n del DNS del sistema. En caso de que tras activar DoH se produzcan fallos al enviar solicitudes al servidor DoH (por ejemplo, debido a bloqueos, p\u00e9rdida de conectividad de red o fallos), el navegador volver\u00e1 autom\u00e1ticamente a la configuraci\u00f3n DNS del sistema. <\/p>\n<p>El objetivo de este experimento es realizar una verificaci\u00f3n final de la implementaci\u00f3n de DoH y estudiar el impacto del uso de DoH en el rendimiento. Cabe se\u00f1alar que el soporte para DoH hab\u00eda sido <noindex><a rel=\"nofollow\" href=\"https:\/\/bugs.chromium.org\/p\/chromium\/issues\/detail?id=799753\">se ha a\u00f1adido<\/a><\/noindex> integrado en el c\u00f3digo base de Chrome desde febrero, pero se requer\u00eda <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/tips\/3120_chrome_firefox_dns_doh_https_crypt_privacy.shtml\">iniciar Chrome con un flag especial y un conjunto de opciones no obvias.<\/a><\/noindex> Recordemos que DoH puede ser \u00fatil para evitar fugas de informaci\u00f3n sobre los nombres de host solicitados a trav\u00e9s de los servidores DNS de los proveedores, combatir ataques MITM y la suplantaci\u00f3n del tr\u00e1fico DNS (por ejemplo, al conectarse a Wi-Fi p\u00fablico), contra los bloqueos a nivel de DNS (DoH no puede reemplazar a un VPN en eludir bloqueos implementados a nivel de DPI) o para facilitar el trabajo cuando no se puede acceder directamente a los servidores DNS (por ejemplo, al trabajar a trav\u00e9s de un proxy). En situaciones normales, las consultas DNS se env\u00edan directamente a los servidores DNS configurados en el sistema, pero en el caso de DoH, la consulta para determinar la direcci\u00f3n IP del host se encapsula en el tr\u00e1fico HTTPS y se env\u00eda a un servidor HTTP, donde el resolutor procesa las solicitudes a trav\u00e9s de la API Web. El est\u00e1ndar existente DNSSEC utiliza cifrado solo para autenticar al cliente y al servidor, pero no protege el tr\u00e1fico contra la interceptaci\u00f3n ni garantiza la confidencialidad de las solicitudes.<\/p>\n<p>A continuaci\u00f3n, la empresa Google <\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51488\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 Mozilla \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430 \u043e \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u0438\u0438 \u043f\u0440\u043e\u0432\u0435\u0441\u0442\u0438 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442 \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 Chrome \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 &#171;DNS \u043f\u043e\u0432\u0435\u0440\u0445 HTTPS&#187; (DoH, DNS over HTTPS). \u0412 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Chrome 78, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u043e\u043c \u043d\u0430 22 \u043e\u043a\u0442\u044f\u0431\u0440\u044f, \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0431\u0443\u0434\u0443\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u044b \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 DoH. \u0412 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0435 \u043f\u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044e DoH \u043f\u0440\u0438\u043c\u0443\u0442 \u0443\u0447\u0430\u0441\u0442\u0438\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438, \u0432 \u0442\u0435\u043a\u0443\u0449\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u043d\u0430\u0441\u0442\u043e\u0439\u043a\u0430\u0445 [&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-38121","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 Mozilla 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