{"id":116094,"date":"2024-05-26T14:59:21","date_gmt":"2024-05-26T12:59:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/odin-iz-kornevyh-dns-serverov-4-dnya-nahodilsya-v-rassinhronizirovannom-sostoyanii"},"modified":"2024-05-26T14:59:21","modified_gmt":"2024-05-26T12:59:21","slug":"odin-iz-kornevyh-dns-serverov-4-dnya-nahodilsya-v-rassinhronizirovannom-sostoyanii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/odin-iz-kornevyh-dns-serverov-4-dnya-nahodilsya-v-rassinhronizirovannom-sostoyanii","title":{"rendered":"Uno dei server DNS radice \u00e8 stato in uno stato di desincronizzazione per 4 giorni","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Uno dei 13 server DNS radice (c.root-servers.net) che garantiscono il funzionamento della zona radice DNS (il link iniziale nella catena di risoluzione dei nomi di dominio, che fornisce informazioni sui server DNS che gestiscono i domini di primo livello e le chiavi per la loro verifica tramite DNSSEC) \u00e8 rimasto in uno stato non sincronizzato con gli altri server DNS radice per quattro giorni. Il funzionamento del server DNS radice 'C' (192.33.4.12) \u00e8 garantito da 12 server dislocati in diversi paesi. Tutti questi server, dal 18 al 22 maggio, non riflettevano le modifiche nella zona radice, fornivano dati obsoleti e non si sincronizzavano con il resto dell'infrastruttura DNS radice.       <\/p>\n<p>Durante il periodo indicato, non sono state apportate modifiche alla zona radice, ma era prevista un'attivit\u00e0 per aggiornare la firma digitale DNSEC per il dominio di primo livello '.gov', condotta nell'ambito del passaggio a chiavi crittografiche basate sull'algoritmo ECDSA. Per la certificazione della zona '.gov' in DNSSEC, recentemente sono stati utilizzati gli algoritmi 8 (RSA\/SHA-256) e 13 (ECDSA P-256\/SHA-256), ma l'algoritmo 8 rimane attivo. Nel fine settimana era previsto aggiungere un record DS per l'algoritmo 13 nella zona radice, dopo di che iniziare il processo di rimozione del record DS per l'algoritmo 8. Un cambiamento simile era previsto anche per il dominio '.int'. Di conseguenza, i record DS associati all'algoritmo 13 per la radice <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1542\">server<\/a> sono stati inviati all'IANA, ma non sono stati pubblicati, poich\u00e9, dopo aver identificato i problemi, il processo di sostituzione delle chiavi \u00e8 stato sospeso fino a quando non sar\u00e0 chiarita la situazione con il server radice 'C'.         <\/p>\n<p>Il funzionamento del server DNS radice 'C', sulla base degli accordi con la Corporation for Assigned Names and Numbers (ICANN), \u00e8 garantito dal fornitore di servizi di rete di livello 1 (Tier 1) Cogent Communications, attivo in 53 paesi. Alcuni giorni prima dell'incidente, \u00e8 stato segnalato un problema di accesso dalla rete Cogent Communications a 1575 sistemi autonomi a causa della cessazione del peering con il fornitore indiano di livello 1 Tata Communications.    <\/p>\n<p>La causa della cessazione degli aggiornamenti per la zona DNS radice \u00e8 attribuita a un guasto nel sistema di monitoraggio responsabile del tracciamento delle modifiche. Il guasto si \u00e8 verificato dopo una modifica della routing, non correlata all'operativit\u00e0 dei server DNS (informazioni dettagliate sulle ragioni non sono ancora fornite). Oltre alla desincronizzazione, non sono state rilevate anomalie nel trattamento delle richieste al server DNS radice &#171;C&#187;. La sincronizzazione \u00e8 stata completamente ripristinata il 22 maggio alle 19:00 (MSK). Tra i possibili problemi che potrebbero essersi verificati durante il lungo periodo di desincronizzazione \u00e8 stata segnalata la possibilit\u00e0 di fornire dati obsoleti sulle chiavi utilizzate in DNSSEC e sugli indirizzi dei server DNS che forniscono assistenza. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/domain\/\"   title=\"domini\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4058\">domini<\/a> di primo livello.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61249\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 &#171;\u0421&#187; (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 [&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-116094","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=\"\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 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