JP2000010887A - Network interface module with security switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To physically cut off the network interface of a system against an illegal access so that the external illegal accessing user can not do anything through the network. SOLUTION: In the network interface module of a computer system, a security switch is provided which can power on and off the network interface module 1 and if a computer is accessed illegally through the network, the CPU 6 of the computer main body 5 sends a power-off signal to the security switch 4 to power off the network interface module 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network interface module with a security switch for blocking unauthorized access via a network.

[0002]

2. Description of the Related Art Security measures against unauthorized access via a network in a computer system usually involve blocking illegal access, particularly in terms of software. However, such security measures using software are generally incomplete, and are not suitable for unauthorized access via networks.
Unauthorized access could not be prevented from sabotaging or attempting to erase intrusion traces.

[0003]

As described above, conventional security measures using software are generally incomplete and have not eliminated illegal access.

Therefore, there is a need for a physical off function of a network interface that physically blocks unauthorized access and prevents unauthorized access from the outside from doing anything including deleting a log. I have.

A main object of the present invention is to provide a security switch having a function of physically blocking a system network interface so that an external unauthorized accessor cannot do anything on the network against unauthorized access. It is to provide a network interface module.

[0006]

The present invention is characterized in that a security switch capable of turning on / off the power of the network interface module is provided in the network interface module in the computer system.

Further, the present invention is characterized in that when a computer is illegally accessed via a network, a CPU of the computer generates a power-off signal to the security switch.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a network interface module with a security switch according to the present invention. The network interface module 1 shown in FIG. 1 includes a network interface 2 and a power interface unit 3, and the power interface 3 has a security switch 4.

The security switch 4 is connected to the computer main body 5
The power supply 7 is connected to the network interface module 1 via the security switch 4.

The security switch 4 is a power switch that can be turned on and off via an internal bus by a signal from the CPU 6 from the computer main body 5, and the function of the switch itself is normal.

When the security switch 4 is turned off by a CPU signal from the computer main unit 5, the function of the network interface module 1 is stopped, and the computer main unit 5 cannot use the network interface function.

Next, the operation of this embodiment will be described with reference to FIG.
This will be described with reference to FIG.

First, the operation of the security switch 4 will be described. The operation of the security switch 4 is performed by receiving a power-on signal from the CPU 6 of the computer main body 5, supplying power to the entire network interface module 1,
The computer main unit 5 can use the network interface 2.

Next, when the computer detects an unauthorized access via the network by using the OS or a security check function of ordinary security software, etc.,
Network interface module 1 from CPU 6
The security switch 4 is set to generate a power-off signal.

If there is an unauthorized access, the CPU 6
The security switch 4 is turned off by the signal from
The power of the network interface module 1 is turned off.

Although the computer main body 5 cannot use the network function, normal processing other than network-related processing can be continued, so that the log of unauthorized access is obtained and application processing is continued.

As described above, the network interface module with a security switch according to the present invention has a configuration in which the power supply of the network interface module connected to the computer is directly connected from the computer main body. -A switch is provided so that it can be turned off. This network interface module with security switch receives a signal from the computer main unit (CPU),
The operation of turning on / off the power of the network interface module itself is executed.

Therefore, when an unauthorized network access is made to the computer, the power supply of the network interface module is turned off, so that the unauthorized access can be cut off.

[0020]

As described above, according to the present invention, the power supply of the network interface module can be directly shut off for unauthorized access via the network, so that an unauthorized access person can destroy the machine or record the intrusion. Interface that attempts to erase the file can be physically disconnected.

Therefore, there is an effect that the computer system can be protected and an unauthorized access person can be traced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a network interface module with a security switch according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Network interface module with security switch 2 Network interface 3 Power supply interface 4 Security switch 5 Computer body 6 CPU 7 Power supply

Claims (6)

[Claims] 1. A network interface module with a security switch, wherein a security switch capable of turning on / off the power of the network interface module is provided in the network interface module in the computer system. 2. The security switch according to claim 1, wherein when a computer is illegally accessed via a network, a CPU of the computer generates a power-off signal to the security switch. With network interface module. 3. The network interface module with a security switch according to claim 1, wherein the unauthorized access is detected by using a security check function of an OS or ordinary security software. 4. The network interface module with a security switch according to claim 1, wherein said power supply is directly connected to a power supply of a computer main body. 5. A network interface module in a computer system, wherein a security switch capable of turning on / off the power of the network interface module is provided, and when the computer receives an unauthorized access via a network, the computer main body. Wherein the CPU generates a power-off signal to the security switch to turn off the power of the network interface module. 6. The method according to claim 5, wherein the unauthorized access is detected by using a security check function of an OS or ordinary security software.