Private cloud firewall configuration method and device

The invention aims to provide a private cloud firewall configuration method and device, and the method comprises the steps: defining the attributes of a safety region corresponding to a cloud host, the attributes comprising a region type, a network type to which the region belongs, and a virtual network card; determining a source security domain and a destination security domain which need to be accessed between security domains; calculating a cloud host interface during access between the configured source security domain and the target security domain based on the attributes of the security areas, and configuring access rules between the security areas to the cloud host interface; and establishing a firewall based on the access rule configured by the cloud host interface. Therefore, a user does not need to configure access rules for the network cards one by one, which interfaces are configured can be automatically calculated according to the attributes of the regions, the arrangement difficulty of network s