Method and system for domain name resolution

A method for domain name resolution, comprising:

• at a system for domain name resolution deployed in a scheduling cluster, the system for domain name resolution including a scheduling system, a probe system, and an analysis system,
• receiving, by the scheduling system, one or more query requests from each of a plurality of local domain name system (DNS) servers, recording an egress Internet protocol (IP) address of each of the plurality of local DNS servers to generate a list of IP addresses that are to be probed, and reporting the list of IP addresses to the probe system;
• distributing, by the probe system, the list of IP addresses to a plurality of probes, each of the plurality of probes to probe a respective plurality of IP addresses in the list of IP addresses;
• and
• receiving, by the analysis system, probing result fed back by each of the plurality of probes, setting an authoritative DNS server for each of the plurality of local DNS servers, and processing each domain name resolution request sent by each of the plurality of local DNS servers through a corresponding authoritative DNS server;
• wherein generating the list of IP addresses that are to be probed comprises:
• classifying the egress IP address of each of the plurality of local DNS servers based on a specified address segment to obtain classified egress IP addresses for the plurality of local DNS servers;
• and
• allocating a service region identifier to each class of the classified egress IP addresses, and aggregating each class of the classified egress IP addresses carrying service region identifiers into the list of IP addresses.