| 摘要 |
Disclosed are a method and system for optimizing DNS root service access. The system comprises a recursive resolver, a root zone data buffer and a root zone file analyser, wherein the recursive resolver is responsible for resolving and searching for DNS data: firstly checking whether a set buffer of the recursive resolver is provided with a corresponding resource record (RR), if so, feeding back a query result, otherwise checking in a data buffer of the root zone data buffer, and feeding back a query result if it is found, otherwise querying in a root domain name server and performing feedback; performing DNSSEC verification on a query result of a DNSSEC query; and after the verification is passed, storing relevant data to the root zone data buffer; and the root zone file analyser is responsible for analysing whether a root zone file is updated, and if the root zone file is updated, notifying the root zone data buffer to clear the buffered data. The present invention can solve the problem of too long an access time of a root server, and cannot destroy the existing root domain name resolution mechanism potentially at the same time. |
