System for monitoring access to network within secured site

A management system for managing access of an information terminal to a network within a secured site, comprising:

• a receiver for receiving security information regarding at least one information terminal from the at least one information terminal before accessing the network;
• a controller for determining whether to permit access of the information terminal to the network based on the security information received from the receiver and a latest access permission criteria in the security information, and for generating a control signal for permitting or blocking access of the information terminal to the network according to a determination result;
• and
• a filter device for permitting or blocking access of the information terminal to the network according to the control signal from the controller.

A computer program product stored on a computer readable storage medium, which executed by a computer system implements a controller to monitor access of an information terminal to a network within a secured site, and implements the following processes:

• receiving security information regarding at least one information terminal from the at least one information terminal before accessing the network;
• determining whether to permit access of the information terminal to the network based on the received security information and a latest access permission criteria on the security information;
• generating a control signal for permitting or blocking access of the information terminal to the network according to a determination result;
• and
• permitting or blocking a access of the information terminal to the network according to the control signal.