{"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\/pl\/blog\/news\/dns-push-uvedomleniya-poluchili-status-predlozhennogo-standarta","title":{"rendered":"Powiadomienia DNS Push uzyska\u0142y status proponowanego standardu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Komitet IETF (Internet Engineering Task Force), odpowiedzialny za rozw\u00f3j protoko\u0142\u00f3w i architektury internetu, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rfc-editor.org\/pipermail\/rfc-dist\/2020-June\/005592.html\">zako\u0144czy\u0142<\/a><\/noindex> tworzenie RFC dla mechanizmu \u201eDNS Push Notifications\u201d i opublikowanie zwi\u0105zanej z nim specyfikacji pod identyfikatorem <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc8765.txt\">RFC 8765<\/a><\/noindex>. RFC uzyska\u0142 status &#171;Proponowanego standardu&#187;, po czym rozpoczn\u0105 si\u0119 prace nad nadaniem RFC statusu standardu roboczego (Draft Standard), co w praktyce oznacza pe\u0142n\u0105 stabilizacj\u0119 protoko\u0142u oraz uwzgl\u0119dnienie wszystkich zg\u0142oszonych uwag.<\/p>\n<p>Mechanizm \u201eDNS Push Notification\u201d umo\u017cliwia klientowi odbieranie powiadomie\u0144 od serwera DNS o zmianach w rekordach DNS w trybie asynchronicznym, bez potrzeby ich okresowego odpytywania. Powiadomienia push s\u0105 obs\u0142ugiwane wy\u0142\u0105cznie przy u\u017cyciu transportu TCP z zabezpieczeniem kana\u0142u komunikacyjnego za pomoc\u0105 \u201eTLS over TCP\u201d. Autorytatywny serwer DNS mo\u017ce przyjmowa\u0107 po\u0142\u0105czenia TCP od klient\u00f3w DNS Push Notification, kt\u00f3rzy wysy\u0142aj\u0105 zapytania o subskrypcj\u0119 na okre\u015blone nazwy i typy rekord\u00f3w DNS. Po przyj\u0119ciu zapytania o subskrypcj\u0119 serwer samodzielnie b\u0119dzie wysy\u0142a\u0107 klientowi powiadomienia o zmianach wskazanych rekord\u00f3w. <\/p>\n<p>Klient ustala obecno\u015b\u0107 wsparcia dla DNS Push Notification poprzez wys\u0142anie zwyk\u0142ego zapytania DNS, kt\u00f3re sprawdza istnienie rekordu SRV \u201e_dns-push-tls._tcp.nazwa_strefy\u201d, wskazuj\u0105cego na serwery DNS obs\u0142uguj\u0105ce subskrypcje. Klient mo\u017ce r\u00f3wnie\u017c subskrybowa\u0107 nieistniej\u0105cy rekord, a serwer musi powiadomi\u0107 klienta, je\u015bli ten pojawi si\u0119 w przysz\u0142o\u015bci. Powiadomienia s\u0105 wysy\u0142ane tylko w przypadku nawi\u0105zania aktywnego po\u0142\u0105czenia TCP z serwerem i nie s\u0105 przeznaczone do monitorowania 24 godziny na dob\u0119, 7 dni w tygodniu \u2014 subskrypcja powinna by\u0107 anulowana w przypadku braku aktywno\u015bci (np. gdy urz\u0105dzenie przechodzi w tryb u\u015bpienia) i u\u017cywana tylko w razie potrzeby \u015bledzenia zmian w trybie na \u017cywo. Przez nawi\u0105zan\u0105 dla powiadomie\u0144 Push lini\u0119 TCP mog\u0105 by\u0107 r\u00f3wnie\u017c wysy\u0142ane zwyk\u0142e zapytania DSN.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <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 5.0.1.1 - 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 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