| 摘要 |
PROBLEM TO BE SOLVED: To provide a control authority management system capable of preventing malicious control.SOLUTION: A server 1 comprises: a user authentication unit 12 for determining whether or not a user has control authority to control a facility from user information on the user input via terminals 2, 3; and a communication line determination unit 13 for determining whether or not types of communication lines connected with the terminals 2, 3 are an Internet line 5. In the case where it is determined that the user has the control authority, the user authentication unit 12 does not permit the user to log in the server 1 if the communication line determination unit 13 has determined the line is the Internet line, and permits the user to perform log-in with control authority to the server 1 if the communication line determination unit 13 has not determined the line is the Internet line. |
