{"id":96270,"date":"2020-10-10T01:42:13","date_gmt":"2020-10-09T23:42:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-ntp-serverov-ntpsec-1-2-0-i-shrony-4-0-s-podderzhkoj-zashhishhyonnogo-protokola-nts"},"modified":"2020-10-10T01:42:13","modified_gmt":"2020-10-09T23:42:13","slug":"vypusk-ntp-serverov-ntpsec-1-2-0-i-shrony-4-0-s-podderzhkoj-zashhishhyonnogo-protokola-nts","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/vypusk-ntp-serverov-ntpsec-1-2-0-i-shrony-4-0-s-podderzhkoj-zashhishhyonnogo-protokola-nts","title":{"rendered":"Lanzamiento de los servidores NTP NTPsec 1.2.0 y Chrony 4.0 con soporte para el protocolo seguro NTS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>El Comit\u00e9 IETF (Internet Engineering Task Force), encargado del desarrollo de los protocolos y la arquitectura de internet, <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.cloudflare.com\/nts-is-now-rfc\/\">ha concluido<\/a><\/noindex> la formaci\u00f3n de RFC para el protocolo NTS (Network Time Security) y ha publicado la especificaci\u00f3n relacionada con el identificador <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rfc-editor.org\/info\/rfc8915\">RFC 8915<\/a><\/noindex>. El RFC recibi\u00f3 el estatus de \u00abEst\u00e1ndar Propuesto\u00bb, tras lo cual comenzar\u00e1 el trabajo para otorgarle al RFC el estatus de Est\u00e1ndar Borrador (Draft Standard), lo que significa la estabilizaci\u00f3n completa del protocolo y la consideraci\u00f3n de todas las observaciones realizadas. <\/p>\n<p>La estandarizaci\u00f3n de NTS es un paso importante para aumentar la seguridad de los servicios de sincronizaci\u00f3n de tiempo preciso y proteger a los usuarios de ataques que simulan un servidor NTP al que se conecta el cliente. Las manipulaciones de los delincuentes relacionadas con la configuraci\u00f3n de un tiempo incorrecto pueden ser utilizadas para comprometer la seguridad de otros protocolos que dependen del tiempo, como TLS. Por ejemplo, un cambio en el tiempo puede llevar a una interpretaci\u00f3n incorrecta de los datos sobre la validez de los certificados TLS. Hasta ahora, NTP y el cifrado sim\u00e9trico de los canales de comunicaci\u00f3n no han garantizado que el cliente interact\u00fae con el servidor NTP leg\u00edtimo y no con uno falso, y la autenticaci\u00f3n mediante claves no se ha generalizado debido a su complejidad en la configuraci\u00f3n.<\/p>\n<p>NTS utiliza elementos de infraestructura de clave p\u00fablica (PKI) y permite el uso de TLS y cifrado autenticado AEAD (Authenticated Encryption with Associated Data) para la protecci\u00f3n criptogr\u00e1fica de la interacci\u00f3n between cliente y servidor a trav\u00e9s del protocolo NTP (Network Time Protocol). NTS incluye dos protocolos separados: NTS-KE (NTS Key Establishment para el manejo de la autenticaci\u00f3n inicial y el acuerdo de claves sobre TLS) y NTS-EF (NTS Extension Fields, encargado de la cifrado y autenticaci\u00f3n de la sesi\u00f3n de sincronizaci\u00f3n de tiempo). NTS agrega varios campos extendidos a los paquetes NTP y mantiene toda la informaci\u00f3n sobre el estado solo en el lado del cliente, utilizando un mecanismo de transmisi\u00f3n de cookies. El puerto de red 4460 ha sido asignado para el manejo de conexiones a trav\u00e9s del protocolo NTS.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/10\/pasted-image-0.png\"><img decoding=\"async\" alt=\"Lanzamiento de los servidores NTP NTPsec 1.2.0 y Chrony 4.0 con soporte para el protocolo seguro NTS\" src=\"\/wp-content\/uploads\/2020\/10\/f97d82315d5964dc0cbbc22d95586ec3.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Las primeras implementaciones estandarizadas de NTS se han propuesto en lanzamientos publicados recientemente <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.ntpsec.org\/2020\/10\/06\/version-1.2.0.html\">NTPsec 1.2.0<\/a><\/noindex> y <noindex><a rel=\"nofollow\" href=\"https:\/\/listengine.tuxfamily.org\/chrony.tuxfamily.org\/chrony-announce\/2020\/10\/msg00000.html\">Chrony 4.0<\/a><\/noindex>. <noindex><a rel=\"nofollow\" href=\"https:\/\/chrony.tuxfamily.org\/\">Chrony<\/a><\/noindex> proporciona una implementaci\u00f3n independiente del cliente y servidor NTP, que se utiliza para sincronizar el tiempo exacto en varias distribuciones de Linux, incluyendo Fedora, Ubuntu, SUSE\/openSUSE y RHEL\/CentOS. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ntpsec.org\/\">NTPsec<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47362\">se desarrolla<\/a><\/noindex> bajo la direcci\u00f3n de Eric Raymond (Eric S. Raymond) y es un fork de la implementaci\u00f3n de referencia del protocolo NTPv4 (NTP Classic 4.3.34), enfocado en la reestructuraci\u00f3n de la base de c\u00f3digo con el objetivo de mejorar la seguridad (se realiz\u00f3 una limpieza del c\u00f3digo obsoleto, se implementaron m\u00e9todos para prevenir ataques y funciones seguras para trabajar con memoria y cadenas).<\/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=53862\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 NTS (Network Time Security) \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0443\u044e \u0441 \u043d\u0438\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043f\u043e\u0434 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u043c RFC 8915. RFC \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u0441\u0442\u0430\u0442\u0443\u0441 &#171;\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430&#187;, \u043f\u043e\u0441\u043b\u0435 \u0447\u0435\u0433\u043e \u043d\u0430\u0447\u043d\u0451\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u043f\u043e \u043f\u0440\u0438\u0434\u0430\u043d\u0438\u044e RFC \u0441\u0442\u0430\u0442\u0443\u0441\u0430 \u0447\u0435\u0440\u043d\u043e\u0432\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430 (Draft Standard), \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 \u0438 \u0443\u0447\u0451\u0442 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":96271,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-96270","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b.\" \/>\n\t<meta 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