Server access method, system and device and storage medium

The invention belongs to the technical field of communication, and particularly relates to a server access method, system and device and a storage medium, and the method comprises the steps: responding to a first message of a client, and building a connection with the client; the first message carries domain name information; generating a second message based on the domain name information, sending the second message to a proxy server based on a tunnel establishment protocol, and establishing a tunnel between the target device and the server; and after the tunnel is established successfully, forwarding the transmitted target data, so that the client accesses the server. The problem of low efficiency during program development can be solved; establishing a connection between the target device and the client based on a handshake verification protocol, and establishing a connection between the target device and the proxy server based on a tunnel establishment protocol, the proxy server being capable of establish