Alias resource record sets

摘要

Generally described, the present disclosure is directed to managing request routing functionality corresponding to resource requests for one or more resources associated with a content provider. A service provider may assign an alias resource records that point to another alias resource record or to an IP address. A DNS server of the service provider may receive a request to resolve a DNS query for a domain for which the DNS server is authoritative. The DNS server determine that the DNS query corresponds to an alias record and may resolve the DNS query according to the data of the alias record.

主权项

1. A system for managing DNS queries, the system comprising:
a processor; a data store comprising a plurality of data records, wherein individual data records comprise a name and a record value; a non-transitory computer readable medium storing software instructions that when executed cause the processor to:
obtain a DNS query corresponding to a request from a client computing device, wherein the DNS query comprises a requested domain name;access a first data record of the plurality of data records in the data store associated with the requested domain name;determine whether a first record value of the first data record comprises information responsive to the DNS query;based on a determination that the first record value does not comprise information responsive to the DNS query and that the first record value comprises a reference to a second data record, access the second data record based, at least in part, on the first record value and determine whether a second record value of the second data record comprises information responsive to the DNS query; andif it is determined that the second record value comprises information responsive to the DNS query, resolve the DNS query by transmitting the information responsive to the DNS query to the client computing device.