System and its method for protecting servers from internet traffic surge by controlling the number of sessions in a network side

The present invention ensures quality of service for one by restricting new users to measure the number of users connected to the application server exceeds the processing capacity of the server, makes the load spikes on the server removing the obstacle on the server, and the already connected user on the other hand, which relates to lower costs by using minimal server resources and application servers and services through a user's session can be controlled over the network to maximize the quality of the congestion control system and its control method. The present invention is a connection included in a session unit to an unspecified number of connection attempts that are introduced into the network application point of view that is, the user's session (session) and the session in order to identify the visitor leading to the server over the network (connection) a separator, and by comparing the number of up to accommodate the session of pre-defined server and the session information obtained here to control access to the connection of new users to reduce server failures due to an unspecified number of users connected, the differential policies for users one through already guaranteed quality of service up to the end of all the services for logged-in users, by the users of the new login attempts are waiting while connected to the server already a session with protecting the users from an existing receiving services users about the IP address or the application Kay For the non-session access to utilized the information used in the design through the control of the differential applies, and at the same time of the classification to determine the maximum number of users the user that the server can be available for access on the first couple based on a ranking service quality It is to delay the connection, redirection (redirection), connected so as to kill.