Data processing method, system and equipment for cluster nodes and storage medium

The invention discloses a data processing method, system and device for cluster nodes and a storage medium. The method comprises the following steps: acquiring network service data of a cluster and security port filing data of each node; according to the network service data, establishing an original association information table of the node and the NodePort port; according to the security port filing data corresponding to each node, updating the original associated information table to obtain a target associated information table; receiving a request data packet, and analyzing the request data packet to obtain target IP address information and target port information; querying whether an association relationship between the target IP address information and the target port information exists in a target association information table, and if yes, performing service processing on the request data packet; or, if the request data packet does not exist, discarding the request data packet. The method can improve t