Apparatus for lan booting environment-based file security and centralization, method therefor, and computer-readable recording medium on which program for performing same method is recorded

A user device for LAN booting environment-based file security and centralization, the user device comprising:

• a communication unit configured to communicate with a central server;
• a LAN booting support module configured to, when receiving an operating system image from the central server through the communication unit, perform booting by using the received operating system image;
• and
• a local storage prevention module configured to, when receiving at least one of a program list and an extension list through the communication unit after the booting is completed, block a function of leaking information among functions of an application belonging to the program list, or block information of a file having an extension included in the extension list from being leaked,
• wherein the local storage prevention module blocks a file of an application included in the program list or the file having the extension included in the extension list from being stored in an area other than a network storage area,
• blocks clipboard copy and screen capture of the application included in the program list or the file having the extension included in the extension list,
• blocks a function of attaching or transmitting a file or a link of the file by the application included in the program list, or
• blocks the file having the extension included in the extension list or the link of the file from being attached or transmitted.

A method for LAN booting environment-based file security and centralization of a central server, the method comprising:

• receiving a LAN booting start request message from a user device;
• selecting an operating system image usable in the user device among a plurality of operating systems according to user device information;
• and
• transmitting the selected operating system image to the user device,
• after the step of transmitting,
• when receiving a security list request message from the user device, transmitting at least one of a program list and an extension list to the user device, so as to block a function of leaking information among functions of an application belonging to the program list by the user device, or block information of a file having an extension included in the extension list from being leaked by the user device.

A method for LAN booting environment-based file security and centralization of a user device, the method comprising:

• receiving an operating system image from a central server;
• perform booting by using the received operating system image;
• receiving at least one of a program list and an extension list after the booting is completed;
• and
• blocking a function of leaking information among functions of an application belonging to the program list, or block information of a file having an extension included in the extension list from being leaked,
• wherein the blocking step blocks a file of an application included in the program list or the file having the extension included in the extension list from being stored in an area other than a network storage area,
• blocks clipboard copy and screen capture of the application included in the program list or the file having the extension included in the extension list,
• blocks a function of attaching or transmitting a file or a link of the file by the application included in the program list, or
• blocks the file having the extension included in the extension list or the link of the file from being attached or transmitted.