KR20000058701A - An Adaptor Card For Deciding The Access To A Special Web-Site Selectively - Google Patents

Abstract

PURPOSE: A computer adapter card for selectively determining web site connection is provided to provide a hardware device for extra installation, to prevent teenagers from connecting to noxiousness web site when teenagers use an internet and to provide locking device in order to prevent teenagers from removing the hardware device. CONSTITUTION: A computer adapter card for selectively determining web site connection is composed of a main frame of adapter card(101), a memory(103), a packet monitor(105), a memory recorder(107), a supporter(111), a link of half-moon form(113) and a lock(115). The memory(103) is nonvolatile and stores address list of web sites classified according to security level by prescribed standard. The packet monitor(105) monitors Network Layer of OSI(Open System Interconnect) Layer3. And then, the packet monitor(105) intercepts a packet moving between internet request of user and hardware device such as LAN card or Modem, analyzes the packet and determines whether the user connects to web site, by comparing with the list of web sites according to security level. The memory recorder(107) updates the address list of web sites stored at memory(103). The supporter(111) of main frame of adapter card(101) has the link of half-moon form(113) in order to prevent from removing adapter card. The lock(115) combines the adapter card to the computer through the link of half-moon form(113).

Description

An adapter card for deciding the access to a special web-site selectively}

The present invention relates to a device mountable in an additional slot of a computer to block access to a particular website. In particular, the present invention relates to an adapter card that is additionally installed in an expansion slot of a personal computer used as an internet terminal to prevent minors from indiscriminately accessing educationally harmful sites.

In today's society, called the information society, computers and the Internet have become essential tools from education to work. Thanks to the universalization of the Internet, which is able to connect with people and institutions around the world across space and time, a variety of information can be obtained with a simple operation using a computer. In the diversification of information, some sites deal with information where the content of the information is desired to be released only to a specific group of users. However, the open nature of the Internet, anyone can easily access the unspecified site and get information there. Of course, there are a lot of sites that are operated to get information on a certain qualification or a certain age by introducing a membership system, but in most cases, sites that are open to an unspecified majority are mainstream. In particular, in the case of adult-only websites, even if the membership system for adults, youth can easily register as a member using the parent's information. In addition, since many adult sites disclose free adult information without deletion, there is an urgent need for measures to protect minors from such harmful information.

In general, in order to control access to a specific website, there is a method of blocking access when a user attempts to access a corresponding Internet site by installing a specific program having a harmful site list stored on the user's computer. In this method, if the computer use ability of the user who is subject to Internet use restriction is above a certain level, the blocking program is quickly made useless. Even if it is not, if the database of the harmful site list installed in the program is not updated continuously and quickly, there is a disadvantage that it is impossible to restrict access to the newly generated harmful site.

As another blocking method, a URL filtering device such as a proxy server may be built in the server of the Internet service provider to which the user connects, so that the Internet can be used only within the authorized range. However, even in this case, it is possible to cancel the access restriction function to the harmful site by arbitrarily changing the Internet use setting so as not to go through the designated proxy server. In this case, the security level can be increased to strengthen the restriction function, which may adversely affect the access of a normal and healthy site. Moreover, when excessive users access the server at the same time, it may cause a problem that the Internet connection speed of the user using the same Internet service is drastically slowed by causing traffic to the Internet server side.

The present invention has been invented to solve the above problems of the prior art, and an object of the present invention is to provide a hardware device for adding a computer to control to selectively connect to a website. It is another object of the present invention to provide an adapter card that blocks the access to harmful web sites when a teenager uses the Internet. Still another object of the present invention is to induce sound Internet use, further comprising a locking device for preventing the arbitrary detachment and detachment of the hardware equipment for controlling the Internet site to be selectively accessed.

1 is a view showing the structure of the adapter card to block access to the youth harmful site according to the present invention.

Figure 2 is a block diagram showing an example of the flow of the operation of the adapter card for blocking access to the youth harmful site according to the present invention.

<Explanation of symbols for main parts of drawing>

101: adapter card body 103: memory means

105: packet monitoring means 107: memory recording means

111: support 113: half moon ring

115: lock

In order to achieve the above object, the present invention provides a memory means for storing a list of addresses of specific web sites, a packet header every time a computer user attempts to access a web site, and extracts an address. And a packet monitoring means for determining whether or not to connect, in comparison with the above. Hereinafter, with reference to Figure 1 showing a diagram of the configuration and driving method of the adapter card according to the present invention will be described in detail.

The adapter card according to the present invention comprises a memory means 103 which stores a list of computer users and a list of web sites classified according to a security level according to predetermined criteria. The memory means 103 preferably uses a nonvolatile and programmable so-called EEPROM. For example, assume that the computer and internet usage administrator set the security level to level 1, level 2, and level 3, and the web sites configured to meet the conditions of the levels and the levels are as follows.

Level 1: Age 15 and under; Site A, Site 1, etc.

Level 2: Access for children under 19 years of age; Site B, site 2, etc.

Level 3: Age 19 or older; Site C, site 3, etc.

Then, it is assumed that user 1, user 2 and user 3 are set at level 1, level 2 and level 3, respectively. Then, the memory means 103 stores a site list designated for each level and a database based on the ranked user list.

User list Rating User 1 Grade 1 User2 Grade 2 User3 Grade 3

Site list Rating Site A Grade 1 Site B Grade 2 Site c Grade 3 Site 1 Grade 1 Site 2 Grade 2 Site 3 Grade 3

In the case where the computer user wants to access a specific website through the Internet, it is preferable to include a packet monitoring means 105 for extracting the web site address portion from the user's request for the Internet access signal. The packet monitoring means 105 always monitors the Network Layer which is an OSI (Open System Interconnect) Layer3 step. Thus, a list of sites according to the user class stored in the memory means 103 which the user wants to access by intercepting and analyzing the packets moving between the user's Internet request and the hardware device (LAN card or Modem) for internet connection. Compare with to determine whether the connection is possible.

The data stored in the memory means 103 is not always fixed and must be periodically updated for a new web site. Therefore, the adapter card according to the present invention receives a new database from a service provider of the Internet when the necessity of updating the database arises and the memory recording means 107 can update the memory means 103. It is preferable to include.

Moreover, in order to prevent the computer user from detaching the adapter card according to the present invention arbitrarily, a half-moon hook 113 is installed on the support 111 of the adapter card main body 101, and the lock 115 is used to bind the case of the computer. It is desirable to be able to. After the adapter card is mounted to the computer and fastened to the computer case using the lock 115, the key can be stored in a safe place to prevent the user from detaching the adapter card without the administrator's permission.

Referring to the operation of the adapter card according to the present invention. 2 is a diagram showing the operation of the adapter card according to the present invention.

When the adapter card according to the present invention is mounted in an expansion slot provided in the computer main board, step 2a is performed in which a driver program for driving the adapter card is installed in the computer. Then, when the computer is turned on, the adapter card's operating program is automatically activated without the user's knowledge, and the adapter card is always running.

Perform the step (2b) in which the adapter card is activated when the computer is powered on.

When the computer's operating system is running and the system starts up, or the user tries to use the Internet, the computer will ask for a user ID and password. At this time, the step (2c) of the adapter driving program recognizes the user's use level based on the input user ID and password.

In order to access the Internet, the user enters the URL of a web site to be accessed. A step 2d of generating a TCP / IP packet including the URL is performed.

When the TCP / IP packet is generated, the packet monitoring means 105 analyzes the header of the packet and extracts the URL which is the web site address (2e).

Step 2f is performed to determine whether or not the level of the user is set to be accessible to the URL to which the user wants to connect, compared to the database stored in the memory means 103.

As a result, if access to the website entered by the current user's setting level is permitted, step (2g) of immediately connecting to the website is performed. If the current user's setting level is not allowed to access the input web site, step 2h of modifying the URL to the address of another preset web site is performed.

Then, in the state connected to the Internet, when the specified date, time or the specified time has elapsed, the update date of the database stored in the memory means 103 of the adapter card is called, and at the same time the update date of the database of the designated server and The comparing step 2i is performed.

If a new database exists as a result of the comparison, the memory recording means 107 is driven to update the database of the adapter card in the same manner as that on the server side (2j). If there is no need to update to the new database as a result of the comparison, the step 2k of waiting for a predetermined time is performed.

After a certain period of time, it is determined whether there is a request for connecting to the Internet web site address of the user (2l), and when the user's request occurs, the user's level is judged to fulfill the role of the adapter card for determining whether to connect. If there is no special request from the user, it is again checked whether there is a need to update the database of the memory means 103.

Example 1

The description of the present invention so far relates to a hardware device for specifying an available level for each user, specifying accessible web sites according to the specified level, and determining whether to access a web site based on the specified level. Explanation was made. Based on this, in order to block access to the adult web site from a computer used by adolescents, a simple method can be achieved as follows. That is, by periodically updating only the URL database of the adult web site in the memory means 103 and setting all computer users to be inaccessible to the web site address stored in the memory means 103, the youth can use it. All computers can be prevented from accessing harmful sites without removing the hardware equipment. In the present embodiment, when the newly created web site contains unhealthy contents for adolescents, and if this address is not yet registered in the memory means and is not registered, it is accessible and does not provide perfect safety. However, after being registered in the memory means, the connection is immediately interrupted.

Example 2

As another method, the memory means 103 may store the addresses of healthy web sites that are recommended for teenagers and periodically update them so that only the web sites stored in the memory means 103 can be accessed. . Then, a user using a computer equipped with the hardware equipment is always in a state of being able to access only a healthy web site. If you try to access other web sites, you will be connected to the default web site preset in memory. In the present embodiment, the connection is unconditionally blocked without knowing whether the newly created web site is sound or not. In addition, access is possible only when the web site is registered as a healthy web site. Therefore, the openness and openness of accessing a new web site, which is an advantage of the Internet, is slightly lower than that of the first embodiment, but has an advantage of being more improved than the first embodiment in terms of safety.

The present invention relates to an adapter card in which a user using the computer using the Internet can determine whether or not a user can access a web site according to an administrator's setting. That is, the present invention adopts a hardware access blocking method as an adapter card that can be effectively used to block access to youth harmful sites, so that the access blocking function cannot be easily removed. The adapter card itself has a built-in database that can determine whether it is accessible or not, so that the load on the server hosting the web can be sufficiently reduced, reducing overall network traffic. By automatically updating the database contents with a new list of rated sites on Internet-connected computers, it is possible to block harmful sites from teenagers more completely.

Claims (4)

Memory means for storing a list of addresses of specific web sites; And a packet monitoring means for analyzing the packet header every time a computer user attempts to access a web site, extracting an address, and comparing the web site list of the memory means to determine whether to access the web site. Adapter card that determines whether or not a site is accessed. The method of claim 1, And an additional memory recording means for updating the stored address list of the memory means. The method of claim 1, The memory means stores a list of web site addresses which wish to inhibit access; And said packet monitoring means blocks the connection when a computer user attempts to access a website corresponding to a website address list stored in said memory means. The method of claim 1, The memory means stores a list of web site addresses which it wishes to encourage access to; And said packet monitoring means permits access only when a computer user attempts to access a web site corresponding to a web site address list stored in said memory means.