En af de 13 rod DNS-servere (c.root-servers.net), der sikrer funktionaliteten af rod DNS-zonen (det indledende led i k\u00e6den til opl\u00f8sning af dom\u00e6nenavne, der giver oplysninger om DNS-serverne, der betjener topniveau dom\u00e6ner, og n\u00f8glerne til deres verifikation ved hj\u00e6lp af DNSSEC), var i fire dage ikke synkroniseret med de andre rod DNS-servere. Rod DNS-serveren 'C' (192.33.4.12) underst\u00f8ttes af 12 servere placeret i forskellige lande. Alle disse servere reflekterede ikke \u00e6ndringer i rodzonen fra den 18. til den 22. maj, leverede for\u00e6ldede data og synkroniserede sig ikke med den \u00f8vrige rodinfrastruktur for DNS. <\/p>\n
I den angivne periode blev der ikke foretaget \u00e6ndringer i rodzonen, men der var planlagt arbejde til opdatering af den digitale signatur DNSEC for topdom\u00e6net '.gov', som blev udf\u00f8rt som led i overgangen til kryptografiske n\u00f8gler baseret p\u00e5 ECDSA-algoritmen. For attestation af zonen '.gov' i DNSSEC anvendes der for nylig algoritmerne 8 (RSA\/SHA-256) og 13 (ECDSA P-256\/SHA-256), men algoritme 8 forbliver aktiv. I weekenden var det planlagt at tilf\u00f8je en DS-post for algoritme 13 i rodzonen, hvorefter processen med at fjerne DS-posten for algoritme 8 skulle begynde. En tilsvarende udskiftning var planlagt for dom\u00e6net '.int'. I sidste ende blev de DS-poster, der var relateret til underst\u00f8ttelsen af algoritme 13 for rodzonen, servere<\/a> overf\u00f8rt til IANA, men blev aldrig offentliggjort, da udskiftningen af n\u00f8glerne blev suspenderet p\u00e5 grund af opdagelsen af problemer, indtil situationen med rodserveren 'C' blev klarlagt. <\/p>\n Driften af rod DNS-serveren 'C' sikres baseret p\u00e5 aftaler med ICANN af Tier 1 udbyderen Cogent Communications, der er repr\u00e6senteret i 53 lande. Flere dage f\u00f8r h\u00e6ndelsen blev problemer med adgangen fra Cogent Communications-netv\u00e6rket til 1575 autonome systemer bem\u00e6rket p\u00e5 grund af oph\u00f8r af peering med den indiske Tier 1-udbyder Tata Communications. <\/p>\n \u00c5rsagen til oph\u00f8r af modtagelse af opdateringer til den prim\u00e6re DNS-zone er en fejl i overv\u00e5gningssystemet, der var ansvarligt for at spore \u00e6ndringer. Fejlen opstod efter \u00e6ndringer i routing, der ikke var relateret til arbejdet med DNS-serverne (detaljerede oplysninger om \u00e5rsagerne gives endnu ikke). Udover desynkronisering er der ikke registreret forstyrrelser i behandlingen af foresp\u00f8rgsler til den prim\u00e6re DNS-server 'C'. Synkroniseringen blev fuldst\u00e6ndig genoprettet den 22. maj kl. 19.00 (MSK). Blandt de mulige problemer, der kunne opst\u00e5 under l\u00e6ngerevarende desynkronisering, n\u00e6vnes muligheden for at udlevere for\u00e6ldede oplysninger om n\u00f8gler, der bruges i DNSSEC, samt adresserne p\u00e5 DNS-servere, der leverer tjenesten. domains<\/a> f\u00f8rste niveau. \u041e\u0434\u0438\u043d \u0438\u0437 13 \u043a\u043e\u0440\u043d\u0435\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432 DNS (c.root-servers.net), \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0440\u0430\u0431\u043e\u0442\u0443 \u043a\u043e\u0440\u043d\u0435\u0432\u043e\u0439 \u0437\u043e\u043d\u044b DNS (\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0435 \u0437\u0432\u0435\u043d\u043e \u0432 \u0446\u0435\u043f\u043e\u0447\u043a\u0435 \u0440\u0435\u0437\u043e\u043b\u0432\u0438\u043d\u0433\u0430 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u0438\u043c\u0451\u043d, \u043e\u0442\u0434\u0430\u044e\u0449\u0435\u0435 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\u0420\u0430\u0431\u043e\u0442\u0443 \u043a\u043e\u0440\u043d\u0435\u0432\u043e\u0433\u043e DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 «\u0421» (192.33.4.12) \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 12 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d\u043d\u044b\u0445 […]<\/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-116094","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\udd47En af root DNS-serverne var i desynkroniseret tilstand i 4 dage | 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Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"