{"id":396,"date":"2019-01-31T15:54:10","date_gmt":"2019-01-31T14:54:10","guid":{"rendered":"http:\/\/www.alvaromarin.com\/?p=396"},"modified":"2019-01-31T15:54:10","modified_gmt":"2019-01-31T14:54:10","slug":"dnsflagday-is-coming","status":"publish","type":"post","link":"http:\/\/www.alvaromarin.com\/2019\/01\/31\/dnsflagday-is-coming\/","title":{"rendered":"#DNSFLAGDAY is coming!"},"content":{"rendered":"\n<p>Estas \u00faltima semanas se est\u00e1 generando bastante revuelo en torno a los servidores DNS y dominios en general, debido a la campa\u00f1a <strong>#DNSFLAGDAY<\/strong>.<\/p>\n\n\n\n<p>Con dicha campa\u00f1a, los principales desarrolladores de software de resoluci\u00f3n DNS (Bind, PowerDNS&#8230;) junto con empresas como Cisco, Facebook, Google&#8230;est\u00e1n invitando a los proveedores DNS (autoritativos y\/o de resoluci\u00f3n) a que actualicen sus plataformas en caso de no ser completamente compatibles con el est\u00e1ndar DNS, de lo contrario, a partir de ma\u00f1ana, d\u00eda 1 de Febrero de 2019, puede que las respuestas DNS sean excesivamente lentas (lo cual impacta en todas las conexiones del resto de protocolos) o incluso que el dominio deje de resolver.<\/p>\n\n\n\n<p>Como bien comentan, durante muchos a\u00f1os se ha estado arrastrando el soporte de software muy antiguo, no est\u00e1ndar y que no permite la evoluci\u00f3n del protocolo e implementaci\u00f3n de mejoras, de ah\u00ed que haya llegado el momento de cortar por lo sano. Por ejemplo, hay servidores que no responden correctamente a las <em>queries<\/em> relativas a EDNS, una extensi\u00f3n del protocolo que permite paquetes UDP m\u00e1s largos de los 512 <em>bytes <\/em>habituales (<strong>ojo <\/strong>en este punto que hay <em>firewalls <\/em>que tampoco lo soportan y deben ser actualizados tambi\u00e9n), nuevos <em>flags<\/em>&#8230;etc.<\/p>\n\n\n\n<p>Por lo tanto, lo primero que habr\u00eda que hacer es comprobar si tu dominio va a seguir funcionando correctamente, algo que puede hacerse desde el formulario de la web <a rel=\"noreferrer noopener\" aria-label=\" (abre en una nueva pesta\u00f1a)\" href=\"http:\/\/www.dnsflagday.net\" target=\"_blank\">http:\/\/www.dnsflagday.net.<\/a> En ella, se mostrar\u00e1n los resultados sobre los NS del dominio consultado, indicando si va a tener problemas o si cada uno de los servidores DNS autoritativos del dominio, sigue los est\u00e1ndares. En caso de que salga alg\u00fan error \u00abrojo\u00bb, mejor contactar <strong>r\u00e1pidamente <\/strong>con tu soporte o administrador de sistemas ya que puede que a partir de ma\u00f1ana, tengas problemas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estas \u00faltima semanas se est\u00e1 generando bastante revuelo en torno a los servidores DNS y dominios en general, debido a la campa\u00f1a #DNSFLAGDAY. Con dicha campa\u00f1a, los principales desarrolladores de software de resoluci\u00f3n DNS (Bind, PowerDNS&#8230;) junto con empresas como &hellip; <a href=\"http:\/\/www.alvaromarin.com\/2019\/01\/31\/dnsflagday-is-coming\/\">Sigue leyendo <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,12],"tags":[126,118,128,127],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>#DNSFLAGDAY is coming! - www.alvaromarin.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.alvaromarin.com\/2019\/01\/31\/dnsflagday-is-coming\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"#DNSFLAGDAY is coming! - www.alvaromarin.com\" \/>\n<meta property=\"og:description\" content=\"Estas \u00faltima semanas se est\u00e1 generando bastante revuelo en torno a los servidores DNS y dominios en general, debido a la campa\u00f1a #DNSFLAGDAY. 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