{"id":170471,"date":"2026-05-06T12:25:08","date_gmt":"2026-05-06T10:25:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/domennaya-zona-de-na-neskolko-chasov-byla-vyvedena-iz-stroya-iz-za-dnssec"},"modified":"2026-05-06T12:25:08","modified_gmt":"2026-05-06T10:25:08","slug":"domennaya-zona-de-na-neskolko-chasov-byla-vyvedena-iz-stroya-iz-za-dnssec","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/domennaya-zona-de-na-neskolko-chasov-byla-vyvedena-iz-stroya-iz-za-dnssec","title":{"rendered":"Dom\u00e9nov\u00e1 z\u00f3na DE byla na n\u011bkolik hodin vy\u0159azena z provozu kv\u016fli DNSSEC.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Do\u0161lo k masivn\u00edmu v\u00fdpadku v provozu dom\u00e9nov\u00e9 z\u00f3ny \u201eDE\u201c, pou\u017e\u00edvan\u00e9 v N\u011bmecku. Probl\u00e9my vznikly kv\u016fli chyb\u011b v nastaven\u00ed DNSSEC pro ko\u0159enovou z\u00f3nu \u201eDE\u201c, kterou provedla organizace DENIC, odpov\u011bdn\u00e1 za dom\u00e9nu prvn\u00edho \u0159\u00e1du \u201eDE\u201c. Od 5. kv\u011btna 22:30 do 6. kv\u011btna 1:30 (MSK) se pokusy o resolvov\u00e1n\u00ed dom\u00e9n v z\u00f3n\u011b \u201eDE\u201c pomoc\u00ed DNS server\u016f, kter\u00e9 pou\u017e\u00edvaj\u00ed DNSSEC pro ov\u011b\u0159ov\u00e1n\u00ed dat, ukon\u010dily chybou. Na DNS serverech, kter\u00e9 pou\u017e\u00edvaj\u00ed DNSSEC, do\u0161lo k v\u00fdpadku i p\u0159i resolvov\u00e1n\u00ed. dom\u00e9n.<\/a>, kter\u00e9 p\u0159\u00edmo nevyu\u017e\u00edvaj\u00ed DNSSEC. <\/p>\n

Probl\u00e9m zas\u00e1hl mnoho DNS resolver\u016f poskytovatel\u016f a ve\u0159ejn\u00e9 DNS slu\u017eby, jako jsou 1.1.1.1 a 8.8.8.8. Jako do\u010dasn\u00e9 opat\u0159en\u00ed spole\u010dnost Cloudflare ve sv\u00e9 DNS slu\u017eb\u011b 1.1.1.1 deaktivovala ov\u011b\u0159ov\u00e1n\u00ed prost\u0159ednictv\u00edm DNSSEC pro dom\u00e9ny v z\u00f3n\u011b \u201eDE\u201c. U\u017eivatel\u00e9 DNS resolver\u016f, na kter\u00fdch je DNSSEC deaktivov\u00e1n, nebyli zasa\u017eeni. <\/p>\n

Ofici\u00e1ln\u011b d\u016fvody incidentu zat\u00edm nebyly ozn\u00e1meny. P\u0159edpokl\u00e1d\u00e1 se, \u017ee probl\u00e9m vznikl kv\u016fli chyb\u011b p\u0159i aktualizaci digit\u00e1ln\u00edho podpisu pro z\u00f3nu \u201eDE\u201c, proveden\u00e9 5. kv\u011btna v 20:49 (MSK). Pou\u017e\u00edvan\u00fd pro verifikaci kl\u00ed\u010d dom\u00e9ny prvn\u00edho \u0159\u00e1du je ko\u0159enem d\u016fv\u011bry pro ostatn\u00ed kl\u00ed\u010de, kter\u00e9 jsou pou\u017e\u00edv\u00e1ny v dom\u00e9n\u00e1ch druh\u00e9ho \u0159\u00e1du, a zase pou\u017e\u00edv\u00e1 kl\u00ed\u010d dom\u00e9ny \u201e.\u201c jako nad\u0159azen\u00fd pro potvrzen\u00ed sv\u00e9 d\u016fv\u011bry. <\/p>\n

V d\u016fsledku proveden\u00e9 operace v dom\u00e9nov\u00e9 z\u00f3n\u011b \u201eDE\u201c byl kryptografick\u00fd podpis (RRSIG \u2014 Resource Record Signature) pro DNS z\u00e1znam NSEC3 nespr\u00e1vn\u00fd. Z\u00e1znam NSEC3 se pou\u017e\u00edv\u00e1 pro potvrzen\u00ed authenticity DNS odpov\u011bd\u00ed o neexistenci dom\u00e9ny, aby se vylou\u010dily \u00fatoky za pou\u017eit\u00ed fale\u0161n\u00fdch odpov\u011bd\u00ed NXDOMAIN pro existuj\u00edc\u00ed dom\u00e9ny. V p\u0159\u00edpad\u011b probl\u00e9m\u016f s digit\u00e1ln\u00edm podpisem pro z\u00e1znam NSEC3 DNS server nem\u016f\u017ee ov\u011b\u0159it hash s daty o existenci dom\u00e9n a v d\u016fsledku toho nem\u016f\u017ee prov\u00e9st ov\u011b\u0159ov\u00e1n\u00ed, pova\u017euje odpov\u011b\u010f za fale\u0161nou a na dotazy o jak\u00e9koli dom\u00e9n\u011b vrac\u00ed chybu.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0438\u0437\u043e\u0448\u0451\u043b \u043c\u0430\u0441\u0441\u043e\u0432\u044b\u0439 \u0441\u0431\u043e\u0439 \u0432 \u0440\u0430\u0431\u043e\u0442\u0435 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u0437\u043e\u043d\u044b «DE», \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 \u0413\u0435\u0440\u043c\u0430\u043d\u0438\u0438. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432\u043e\u0437\u043d\u0438\u043a\u043b\u0438 \u0438\u0437-\u0437\u0430 \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 DNSSEC \u0434\u043b\u044f \u043a\u043e\u0440\u043d\u0435\u0432\u043e\u0439 \u0437\u043e\u043d\u044b «DE», \u0441\u043e\u0432\u0435\u0440\u0448\u0451\u043d\u043d\u043e\u0439 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0435\u0439 DENIC, \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0435\u0439 \u0437\u0430 \u0434\u043e\u043c\u0435\u043d \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f «DE». \u0421 5 \u043c\u0430\u044f 22:30 \u043f\u043e 6 \u043c\u0430\u044f 1:30 (MSK) \u043f\u043e\u043f\u044b\u0442\u043a\u0430 \u0440\u0435\u0437\u043e\u043b\u0432\u0438\u043d\u0433\u0430 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0432 \u0437\u043e\u043d\u0435 «DE» \u0447\u0435\u0440\u0435\u0437 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u044b, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0449\u0438\u0435 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, \u0437\u0430\u0432\u0435\u0440\u0448\u0430\u043b\u0430\u0441\u044c […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-170471","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Dom\u00e9na DE byla na n\u011bkolik hodin vystavena v\u00fdpadku kv\u016fli DNSSEC | ProHoster","description":"Do\u0161lo k hromadn\u00e9mu v\u00fdpadku dom\u00e9ny \"DE\", pou\u017e\u00edvan\u00e9 v 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