En av 13 rot-DNS-servrar (c.root-servers.net) som s\u00e4kerst\u00e4ller funktionen av den rot-DNS-zonen (det f\u00f6rsta ledet i kedjan av dom\u00e4nnamnsuppl\u00f6sning som ger information om DNS-servrar som hanterar toppdom\u00e4ner och nycklar f\u00f6r verifiering med DNSSEC) var under fyra dagar i ett tillst\u00e5nd som inte var synkroniserat med de andra rot-DNS-servrarna. Funktionen av rot-DNS-servern \u201cC\u201d (192.33.4.12) st\u00f6ds av 12 servrar bel\u00e4gna i olika l\u00e4nder. Samtliga dessa servrar reflekterade inte \u00e4ndringar i den rot-DNS-zonen fr\u00e5n den 18 till den 22 maj, gav f\u00f6r\u00e5ldrad data och var inte synkroniserade med den \u00f6vriga rot-DNS-infrastrukturen. <\/p>\n
Under den angivna perioden gjordes inga \u00e4ndringar i den rot-DNS-zonen, men arbete med uppdateringen av den digitala signaturen DNSEC f\u00f6r toppdom\u00e4nen \u201c.gov\u201d planerades som en del av \u00f6verg\u00e5ngen till kryptografiska nycklar baserade p\u00e5 ECDSA-algoritmen. F\u00f6r att signera zonen \u201c.gov\u201d i DNSSEC anv\u00e4nds sedan en tid tillbaka algoritmerna 8 (RSA\/SHA-256) och 13 (ECDSA P-256\/SHA-256), men algoritm 8 \u00e4r fortfarande aktiv. Under helgen planerades det att en DS-post f\u00f6r algoritm 13 skulle l\u00e4ggas till i rotzonen, och d\u00e4refter p\u00e5b\u00f6rjas processen med att ta bort DS-posten f\u00f6r algoritm 8. En liknande ers\u00e4ttning planerades ocks\u00e5 f\u00f6r toppdom\u00e4nen \u201c.int\u201d. Resultatet, relaterat till st\u00f6d f\u00f6r DS-poster f\u00f6r algoritm 13 i rotzonen, servrar<\/a> \u00f6verl\u00e4mnades till IANA, men blev aldrig publicerat, eftersom processen f\u00f6r nyckelbyte avbr\u00f6ts efter identifieringen av problem tills situationen med rotservern \u201cC\u201d klarnades. <\/p>\n Funktionen av rot-DNS-servern \u201cC\u201d tillhandah\u00e5lls p\u00e5 grundval av avtal med ICANN av Tier 1-leverant\u00f6ren Cogent Communications, som finns representerad i 53 l\u00e4nder. N\u00e5gra dagar f\u00f6re incidenten noterades problem med \u00e5tkomsten fr\u00e5n Cogent Communications n\u00e4tverk till 1575 autonoma system p\u00e5 grund av att peering med den indiska Tier 1-leverant\u00f6ren Tata Communications avbr\u00f6ts. <\/p>\n Anledningen till att uppdateringar f\u00f6r den prim\u00e4ra DNS-zonen har stoppats \u00e4r ett fel i \u00f6vervakningssystemet som ansvarade f\u00f6r att sp\u00e5ra \u00e4ndringar. Felet intr\u00e4ffade efter en \u00e4ndring av routingen som inte var relaterad till DNS-servrarna (detaljerad information om orsakerna ges f\u00f6r n\u00e4rvarande inte). F\u00f6rutom desynkroniseringen har inga st\u00f6rningar i hanteringen av f\u00f6rfr\u00e5gningar till den prim\u00e4ra DNS-servern «C» registrerats. Synkroniseringen \u00e5terst\u00e4lldes helt den 22 maj klockan 19.00 (MSK). Bland m\u00f6jliga problem som kan ha uppst\u00e5tt under den l\u00e5nga desynkroniseringen n\u00e4mns risken f\u00f6r att f\u00f6r\u00e5ldrad information om nycklar som anv\u00e4nds i DNSSEC och adresser till DNS-servrar som tillhandah\u00e5ller tj\u00e4nster kan ges. dom\u00e4ner<\/a> topdomen. \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 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430\u0445, \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u043e\u043c\u0435\u043d\u044b \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f, \u0438 \u043a\u043b\u044e\u0447\u0430\u0445 \u0434\u043b\u044f \u0438\u0445 \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 DNSSEC) \u0447\u0435\u0442\u044b\u0440\u0435 \u0434\u043d\u044f \u043d\u0430\u0445\u043e\u0434\u0438\u043b\u0441\u044f \u0432 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438, \u043d\u0435 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u0441 \u043e\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u043c\u0438 \u043a\u043e\u0440\u043d\u0435\u0432\u044b\u043c\u0438 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c\u0438. \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 av de \u00f6vergripande DNS-servrarna var i ett desynkroniserat tillst\u00e5nd i 4 dagar | ProHoster","description":"En av de 13 \u00f6vergripande DNS-servrarna (c.root-servers.net) som s\u00e4kerst\u00e4ller funktionen av den \u00f6vergripande DNS-zonen (den f\u00f6rsta l\u00e4nken i kedjan f\u00f6r namnl\u00f6sning av dom\u00e4ner, som ger information om DNS-servrar som hanterar f\u00f6rsta niv\u00e5n.","canonical_url":"https:\/\/prohoster.info\/sv\/blog\/news\/odin-iz-kornevyh-dns-serverov-4-dnya-nahodilsya-v-rassinhronizirovannom-sostoyanii","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sv_SE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS 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K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"