The invention provides a reverse
domain name resolution method and device, equipment, a medium and a product, and the method comprises the steps: detecting the operation state of a local reverse
domain name resolution link in response to a reverse
domain name resolution request sent by a terminal; and determining whether to import a reverse domain
name resolution record in the local
Zone file according to the running state, wherein the reverse domain
name resolution record is used for providing a reverse domain
name resolution service for the terminal. According to the embodiment of the invention, the reliability of a reverse domain name resolution scheme can be improved, the reverse domain
name resolution service can be provided for the terminal even under the extreme conditions that the domain name root, the top-level domain name and the authoritative service are interrupted, and the like, and the reverse domain
name resolution service can be provided for the terminal on the premise that the Local DNS does not need to be configured by an administrator and does not need to be networked with a protection platform. And reverse domain name resolution protection can be realized adaptively based on the original resolution protection snapshot.