Domain name address obtaining method and device

The embodiment of the invention provides a domain name address obtaining method and device, and the method comprises the step of executing operations related to a domain name addressrefreshing recordwhen a first condition is met; and the first condition comprises at least one selected from confirming the address change of the obtained DNS, redirecting PDU session, confirming that the acquired IPaddress is changed, a first DNN being no longer available, a second DNN being available, moving a terminal from a first area to a second area, moving the terminal out of the first area, moving the terminal into the second area, receiving a first indication; switching the terminal, and the terminal being in the connected state. The first area comprises at least one of a service area of the first local service, a service area of the non-local service and an available area of the first DNN; and the second area comprises at least one of a service area of the second local service, a service area ofthe non-local service and