A proxy server acts as an intermediary in a network, providing a channel for accessing other network resources. When a client initiates a request for access, it is first sent to the proxy server. The proxy server checks the content of the request and, if it is deemed legal, forwards it to the target server. The server responds and sends the result back to the client. The proxy server can reduce the direct connection between the client and server, protect the client's privacy, cache commo...