CPC H04L 41/0654 (2013.01) [H04L 61/4511 (2022.05); H04L 61/5076 (2022.05); H04L 61/58 (2022.05); H04L 69/40 (2013.01); H04W 24/04 (2013.01); H04L 41/042 (2013.01); H04L 61/45 (2022.05)] | 17 Claims |
1. A method for indicating a degraded state of an authoritative name server, the method comprising:
determining, at a first authoritative name server, that the first authoritative name server is in a first degraded state, wherein determining that the first authoritative name server is in the first degraded state comprises:
detecting an abnormal pattern of queries received by the first authoritative name server from a plurality of requesters, or
detecting an abnormal pattern of responses sent by the first authoritative name server to the plurality of requesters;
generating a status record specifying that the first authoritative name server is in the first degraded state, wherein the status record includes at least one of:
a degradation severity value specifying a severity level of the first degraded state, or a degradation cause value specifying a cause of the first degraded state;
associating the status record with a domain name service (DNS) response to a DNS query; and
transmitting the DNS response and the associated status record to a requester.
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