{"id":71585,"date":"2020-02-27T02:48:56","date_gmt":"2020-02-26T23:48:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-ublock-origin-1-25-s-zashhitoj-ot-obhoda-blokirovki-cherez-manipulyaczii-s-dns"},"modified":"2020-03-03T16:10:43","modified_gmt":"2020-03-03T13:10:43","slug":"vypusk-ublock-origin-1-25-s-zashhitoj-ot-obhoda-blokirovki-cherez-manipulyaczii-s-dns","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/vypusk-ublock-origin-1-25-s-zashhitoj-ot-obhoda-blokirovki-cherez-manipulyaczii-s-dns","title":{"rendered":"Lanzamiento de uBlock Origin 1.25 con protecci\u00f3n contra eludir el bloqueo mediante manipulaciones con DNS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Disponible<\/a><\/noindex> nuevo lanzamiento del bloqueador de contenido no deseado uBlock Origin 1.25<\/a><\/noindex>, que proporciona el bloqueo de anuncios, elementos maliciosos, c\u00f3digo para el seguimiento de movimientos, mineros de JavaScript y otros elementos que interfieren con el funcionamiento normal. La extensi\u00f3n uBlock Origin se destaca por su alto rendimiento y bajo consumo de memoria, permitiendo no solo deshacerse de elementos intrusivos, sino tambi\u00e9n reducir el consumo de recursos y acelerar la carga de p\u00e1ginas.<\/p>\n

En la nueva versi\u00f3n, se proporciona a los usuarios de Firefox el bloqueo de una nueva t\u00e9cnica de seguimiento de movimientos y sustituci\u00f3n de bloques publicitarios basada en la creaci\u00f3n de un subdominio separado en DNS dentro del dominio del sitio actual. El subdominio creado hace referencia a un servidor de red publicitaria (por ejemplo, se crea un registro CNAME f7ds.liberation.fr que apunta al servidor de seguimiento liberation.eulerian.net), por lo que el c\u00f3digo publicitario se carga formalmente desde el mismo dominio principal que el sitio. El nombre para el subdominio se elige en forma de un identificador aleatorio, lo que dificulta el bloqueo por patr\u00f3n, ya que el subdominio vinculado con la red publicitaria es dif\u00edcil de distinguir de los subdominios para cargar otros recursos locales de la p\u00e1gina. <\/p>\n

En la nueva versi\u00f3n de uBlock Origin para determinar los hosts vinculados a trav\u00e9s de CNAME se ha agregado<\/a><\/noindex> llamada para resolver<\/a><\/noindex> el nombre en DNS, lo que permite aplicar listas de bloqueo tambi\u00e9n para nombres redirigidos a trav\u00e9s de CNAME.
\nDesde el punto de vista del rendimiento, la determinaci\u00f3n de CNAME no deber\u00eda generar costos adicionales, aparte del consumo de recursos del procesador por volver a aplicar reglas para otro nombre, ya que al acceder a un recurso, el navegador ya habr\u00e1 realizado la resoluci\u00f3n, y el valor deber\u00eda estar en cach\u00e9. Al instalar la nueva versi\u00f3n, se requerir\u00e1n permisos para obtener informaci\u00f3n de DNS.<\/p>\n

\"Lanzamiento<\/a><\/noindex><\/center><\/p>\n

El nuevo m\u00e9todo de protecci\u00f3n basado en la verificaci\u00f3n de CNAME puede ser eludido al vincular directamente un nombre a una IP sin usar CNAME, pero este enfoque complica el mantenimiento y la gesti\u00f3n de la infraestructura (en caso de que se cambie la direcci\u00f3n IP de la red publicitaria, ser\u00e1 necesario realizar cambios en todos los servidores DNS de los editores) y puede ser eludido mediante la creaci\u00f3n de una lista negra de direcciones IP de rastreadores. En la versi\u00f3n de uBlock Origin para Chrome, la verificaci\u00f3n de CNAME no funciona, debido a que la API dns.resolve()<\/a><\/noindex> solo est\u00e1 disponible para complementos en Firefox y no es compatible con Chrome. <\/p>\n

<\/a><\/noindex><\/p>\n

Fuente: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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