What is the role of a proxy server?

A proxy server functions primarily as an intermediary for requests made by clients who are seeking resources from external servers. When a client wants to access a website or a service, instead of connecting directly to the target server, the client sends the request to the proxy server. The proxy then forwards the request to the appropriate server, retrieves the response, and sends that back to the client.

This process can serve various purposes, such as enhancing security, maintaining anonymity, and managing traffic. For instance, by using a proxy server, organizations can implement access controls, filter content, and cache responses to improve the efficiency of repeated requests. Additionally, proxies can help users bypass restrictions or censorship, as the original requester's identity and location are masked.

Understanding this functionality clarifies why the role of a proxy server is vital in both individual user scenarios and organizational networks, ensuring that it facilitates better communication between clients and servers while providing a layer of separation that enhances security and manageability.