{"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\/en\/blog\/news\/sboj-v-domennoj-zone-ru-iz-za-oshibki-pri-zamene-klyuchej-dnssec","title":{"rendered":"Failure in the RU domain zone due to an error in DNSSEC key replacement","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

On January 30 at 18:20 (MSK), users experienced a widespread failure in host resolution within the RU domain zone, caused by an error during the key change used for authenticating the RU zone via DNSSEC. As a result of the incident, all domains in the '.ru' zone stopped resolving on DNS servers that implement DNSSEC for data validation. The issue affected only users utilizing DNS resolvers from providers or public DNS services like 8.8.8.8, which authenticate requests using DNSSEC. Users of DNS resolvers with DNSSEC disabled were not affected. <\/p>\n

The incident is reminiscent of last year's event involving the registrar InternetNZ, responsible for the '.NZ' domain zone, which led to a resolution failure. domain names<\/a> in the '.nz' zone due to an error during the rotation of KSK keys (Key Signing Key) used for digitally signing DNSKEY records that contain keys for signing the domain zone (ZSK, Zone Signing Key). In the case of InternetNZ, the error was related to a format change of the keys during the transition to a new registrar information system. The causes of the incident in the RU zone have not yet been detailed \u2014 the Coordination Center for RU domains has only broadly confirmed that the problem was related to DNSSEC reconfiguration. <\/p>\n

Judging by the external manifestations, the failure occurred as a result of an attempt to replace the key used for verifying the RU zone. This key serves as the trust anchor for other keys used in second-level domains and, in turn, utilizes the key of the '.' domain as a parent to confirm its trust. On January 26, in the DNSEC settings of the RU zone, in addition to the main key with identifier 44301, an additional key 52263 appeared.

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

Yesterday around 18:20, the new key was activated for validating records in the RU zone, but after the transition to the new key, authentication checks failed due to an error.

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

The signature with the old key was returned around 9 PM (MSK), while the first valid response was recorded by the dnsviz.net service at 10:07 PM (MSK). The faulty settings were present for about two and a half hours, but due to the lingering erroneous records in the caches of DNS servers, additional time is required for full recovery unless the cache on the recursive DNS servers is forcibly cleared. Some providers resolved the issue more quickly and drastically by temporarily disabling DNSSEC verification in their resolver settings.

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

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