مخدم وسيط
المخدم الوسيط proxy server هو تطبيق مخدم يعمل كوسيط بين العميل الذي يطلب مورداً من الموارد وبين المخدم الذي يقدم ذلك المورد، بهدف زيادة الخصوصية، أو الأمان، أو رفع الأداء، أو تجاوز حجب الخدمة.
Instead of connecting directly to a server that can fulfill a request for a resource, such as a file or web page, the client directs the request to the proxy server, which evaluates the request and performs the required network transactions. This serves as a method to simplify or control the complexity of the request, or provide additional benefits such as load balancing, privacy, or security. Proxies were devised to add structure and encapsulation to distributed systems.[2] A proxy server thus functions on behalf of the client when requesting service, potentially masking the true origin of the request to the resource server.