{"id":87049,"date":"2020-07-02T19:42:09","date_gmt":"2020-07-02T17:42:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dns-push-uvedomleniya-poluchili-status-predlozhennogo-standarta"},"modified":"2020-07-02T19:42:09","modified_gmt":"2020-07-02T17:42:09","slug":"dns-push-uvedomleniya-poluchili-status-predlozhennogo-standarta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/dns-push-uvedomleniya-poluchili-status-predlozhennogo-standarta","title":{"rendered":"As notifica\u00e7\u00f5es push DNS receberam o status de padr\u00e3o proposto.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>O Comit\u00ea IETF (Internet Engineering Task Force), respons\u00e1vel pelo desenvolvimento de protocolos e arquitetura da internet, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rfc-editor.org\/pipermail\/rfc-dist\/2020-June\/005592.html\">concluiu<\/a><\/noindex> forma\u00e7\u00e3o do RFC para o mecanismo \"DNS Push Notifications\" e publica\u00e7\u00e3o da especifica\u00e7\u00e3o relacionada sob o identificador <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc8765.txt\">RFC 8765<\/a><\/noindex>. O RFC recebeu o status de \u00abPadr\u00e3o Proposto\u00bb, ap\u00f3s o qual come\u00e7ar\u00e1 o trabalho para conceder ao RFC o status de Padr\u00e3o Draft, o que significa, na pr\u00e1tica, a completa estabiliza\u00e7\u00e3o do protocolo e a considera\u00e7\u00e3o de todos os coment\u00e1rios recebidos.<\/p>\n<p>O mecanismo \"DNS Push Notification\" permite que o cliente receba notifica\u00e7\u00f5es do servidor DNS sobre altera\u00e7\u00f5es nos registros DNS de forma ass\u00edncrona, sem a necessidade de consultas peri\u00f3dicas. As notifica\u00e7\u00f5es push s\u00e3o tratadas apenas usando transporte TCP com prote\u00e7\u00e3o da comunica\u00e7\u00e3o por meio de \"TLS over TCP\". O servidor DNS autoritativo pode aceitar conex\u00f5es TCP de clientes DNS Push Notification, que enviam solicita\u00e7\u00f5es para assinar nomes e tipos de registros DNS espec\u00edficos. Ap\u00f3s receber a solicita\u00e7\u00e3o de assinatura, o servidor enviar\u00e1 notifica\u00e7\u00f5es ao cliente sobre altera\u00e7\u00f5es nos registros especificados. <\/p>\n<p>O cliente determina a disponibilidade do suporte a DNS Push Notification enviando uma solicita\u00e7\u00e3o DNS comum, que verifica a exist\u00eancia do registro SRV \"_dns-push-tls._tcp.nome_da_zona\", que aponta para os servidores DNS que atendem \u00e0s assinaturas. O cliente tamb\u00e9m pode se inscrever em um registro inexistente, e o servidor deve notificar o cliente se ele aparecer no futuro. As notifica\u00e7\u00f5es s\u00e3o enviadas somente quando h\u00e1 uma conex\u00e3o TCP estabelecida com o servidor e n\u00e3o s\u00e3o destinadas a monitoramento 24 horas por dia, 7 dias por semana \u2014 a assinatura deve ser cancelada em caso de inatividade (por exemplo, quando o dispositivo entra em modo de espera) e utilizada apenas quando houver necessidade direta de monitorar mudan\u00e7as em tempo real. Pelo canal TCP estabelecido para as notifica\u00e7\u00f5es push, tamb\u00e9m podem ser enviados solicita\u00e7\u00f5es DSN comuns.<\/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=53276\">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 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 &#171;DNS Push Notifications&#187; \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 8765. 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 \u0432\u0441\u0435\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-87049","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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,\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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