{"id":113276,"date":"2024-01-31T13:41:06","date_gmt":"2024-01-31T11:41:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sboj-v-domennoj-zone-ru-iz-za-oshibki-pri-zamene-klyuchej-dnssec"},"modified":"2024-01-31T13:41:06","modified_gmt":"2024-01-31T11:41:10","slug":"sboj-v-domennoj-zone-ru-iz-za-oshibki-pri-zamene-klyuchej-dnssec","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/sboj-v-domennoj-zone-ru-iz-za-oshibki-pri-zamene-klyuchej-dnssec","title":{"rendered":"Awaria w strefie domenowej RU z powodu b\u0142\u0119du przy wymianie kluczy DNSSEC","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

30 stycznia o 18:20 (MSK) u\u017cytkownicy mieli do czynienia z masowym problemem rozpoznawania host\u00f3w w strefie domenowej RU, spowodowanym b\u0142\u0119dem podczas zmiany kluczy wykorzystywanych do weryfikacji autentyczno\u015bci strefy RU za pomoc\u0105 DNSSEC. W wyniku incydentu na serwerach DNS stosuj\u0105cych DNSSEC do weryfikacji danych, przesta\u0142y by\u0107 rozpoznawane wszystkie domeny w strefie \u201e.ru\u201d. Problem dotkn\u0105\u0142 tylko u\u017cytkownik\u00f3w korzystaj\u0105cych z resolver\u00f3w DNS dostawc\u00f3w lub publicznych us\u0142ug DNS, takich jak 8.8.8.8, kt\u00f3re weryfikowa\u0142y poprawno\u015b\u0107 zapyta\u0144 za pomoc\u0105 DNSSEC. U\u017cytkownicy resolver\u00f3w DNS, w kt\u00f3rych DNSSEC zosta\u0142 wy\u0142\u0105czony, nie ucierpieli. <\/p>\n

Zaistnia\u0142a sytuacja przypomina ubieg\u0142oroczny incydent z rejestratorem InternetNZ, odpowiedzialnym za stref\u0119 domenow\u0105 \u201e.NZ\u201d, kt\u00f3ry doprowadzi\u0142 do awarii rozwi\u0105zywania nazw domen<\/a> w strefie \u201e.nz\u201d z powodu b\u0142\u0119du podczas rotacji kluczy KSK (Key Signing Key), wykorzystywanych do cyfrowego podpisywania rekord\u00f3w DNSKEY, zawieraj\u0105cych klucze do podpisywania strefy domenowej (ZSK, Zone Signing Key). W przypadku InternetNZ b\u0142\u0105d by\u0142 zwi\u0105zany ze zmian\u0105 formatu kluczy podczas przechodzenia na nowy system informacyjny rejestratora. Przyczyny incydentu w strefie RU nie zosta\u0142y jeszcze szczeg\u00f3\u0142owo okre\u015blone \u2014 Koordynacyjny Centrum Domen\u00f3w RU tylko og\u00f3lnie potwierdzi\u0142, \u017ce problem jest zwi\u0105zany z rekonfiguracj\u0105 DNSSEC. <\/p>\n

Z wygl\u0105du na zewn\u0119trzne objawy, awaria nast\u0105pi\u0142a w wyniku pr\u00f3by wymiany klucza u\u017cywanego do weryfikacji strefy RU. Klucz ten jest korzeniem zaufania dla pozosta\u0142ych kluczy stosowanych w domenach drugiego poziomu i z kolei wykorzystuje klucz domeny \u201e.\u201d jako wy\u017cszy do potwierdzania swojego zaufania. 26 stycznia w ustawieniach DNSEC strefy RU obok g\u0142\u00f3wnego klucza o identyfikatorze 44301 pojawi\u0142 si\u0119 dodatkowy klucz 52263.

\"Awaria\"Awaria<\/center> <\/p>\n

Wczoraj oko\u0142o 18:20 nowy klucz zosta\u0142 u\u017cyty do weryfikacji rekord\u00f3w w strefie RU, ale po przej\u015bciu na nowy klucz z powodu b\u0142\u0119du przesta\u0142a przechodzi\u0107 weryfikacja autentyczno\u015bci.

\"Awaria<\/center> <\/p>\n

Podpisanie starym kluczem zosta\u0142o przywr\u00f3cone oko\u0142o godziny 21:00 (MSK), a pierwsza poprawna odpowied\u017a zosta\u0142a zarejestrowana przez serwis dnsviz.net o 22:07 (MSK). B\u0142\u0119dne ustawienia wyst\u0119powa\u0142y przez oko\u0142o dwie i p\u00f3\u0142 godziny, jednak ze wzgl\u0119du na osiedlenie si\u0119 b\u0142\u0119dnych wpis\u00f3w w pami\u0119ciach podr\u0119cznych serwer\u00f3w DNS, do pe\u0142nego przywr\u00f3cenia wymagana jest dodatkowa chwila, je\u015bli nie zostanie wymuszone czyszczenie pami\u0119ci podr\u0119cznej na rekurencyjnych serwerach DNS. Niekt\u00f3rzy dostawcy rozwi\u0105zali problem szybciej i bardziej radykalnie, tymczasowo wy\u0142\u0105czaj\u0105c w ustawieniach swoich resolver\u00f3w weryfikacj\u0119 za pomoc\u0105 DNSSEC.

\"Awaria\"Awaria<\/center>
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

30 \u044f\u043d\u0432\u0430\u0440\u044f \u0432 18:20 (MSK) \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0441\u0442\u043e\u043b\u043a\u043d\u0443\u043b\u0438\u0441\u044c \u0441 \u043c\u0430\u0441\u0441\u043e\u0432\u044b\u043c \u0441\u0431\u043e\u0435\u043c \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0445\u043e\u0441\u0442\u043e\u0432 \u0432 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u0437\u043e\u043d\u0435 RU, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u044b\u0439 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u043f\u0440\u0438 \u0441\u043c\u0435\u043d\u0435 \u043a\u043b\u044e\u0447\u0435\u0439, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u0434\u043b\u044f \u0437\u0430\u0432\u0435\u0440\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u043d\u043e\u0441\u0442\u0438 \u0437\u043e\u043d\u044b RU \u0447\u0435\u0440\u0435\u0437 DNSSEC. \u0412 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430 \u043d\u0430 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430\u0445, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0449\u0438\u0445 DNSSEC \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u0435\u0440\u0435\u0441\u0442\u0430\u043b\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0442\u044c\u0441\u044f \u0432\u0441\u0435 \u0434\u043e\u043c\u0435\u043d\u044b \u0432 \u0437\u043e\u043d\u0435 «.ru». \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0437\u0430\u0442\u0440\u043e\u043d\u0443\u043b\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 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