KR102019284B1 - Web notificatio service system, router apparatus and control method thereof - Google Patents

Abstract

The present invention provides a web notification service system capable of realizing a web notification service that can notify a customer (user terminal) of a web server failure to a customer (user terminal) of a customer's web server while minimizing design changes and processes of network equipment. And a router apparatus and a method of operating the router apparatus applied thereto.

Description

Web Announcement Service System and Router Applied to It and Operation Method of Router Apparatus {WEB NOTIFICATIO SERVICE SYSTEM, ROUTER APPARATUS AND CONTROL METHOD THEREOF}

The present invention relates to a technology for providing a web notification service, and more particularly, a web notification service for notifying a customer of a web server failure to a customer of a client when a client's web server fails. The present invention relates to a technique for minimizing the process.

In general, when a user terminal wants to access a web server through the Internet, the user terminal obtains an IP address of the domain of the web server from a DNS (Domain Name Service) server of the Internet service provider. After that, the web server can be accessed through the Internet using the obtained IP address.

Here, in a process in which a user terminal accesses a DNS server of an Internet service provider, and a process in which a user terminal accesses a web server, routing paths between nodes (eg, terminals, network equipment, servers, etc.) of the same network and / or other networks. At least one switch and / or at least one router for controlling the is involved.

On the other hand, due to work on the web server or unexpected failure of the web server (e.g., internet line failure, etc.), there is a failure situation in which the user terminal cannot access the web server or use normal web services even if the user terminal is connected. May occur.

In the event of such a failure, a large number of unspecified customers (user terminals) attempting to access the web server cannot know why the normal web service cannot be used. Dissatisfaction / convenience will increase as you will need to inquire separately at the customer center.

Thus, when a customer's web server fails, the necessity of providing a web notification service that can notify the customer (user terminal) of the web server failure is recognized.

However, the current web announcement service providing method has to be accompanied by a design change and a complicated process for the existing network equipment, so there is a problem in terms of its performance and operation.

Accordingly, the present invention proposes a method for realizing a web notification service that can notify a customer (user terminal) of a web server failure in case of a failure of a client web server, by minimizing design changes and processes of network equipment. I would like to.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a web notification service that can notify a customer (user terminal) of a web server failure to a customer (user terminal) of a customer's web server, It is to provide a plan (technology) that can be realized by minimizing the design changes and processes of network equipment.

Web notification service system according to a first aspect of the present invention for achieving the above object, based on the predetermined routing information, the user terminal attempting to access using the IP address of the web server and the routing path between the web server A first router for controlling; Based on the forced routing function activated when the web server fails, a routing path between the user terminal and the specific server is forcibly bypassed by attempting to access the user terminal using the IP address to a specific server providing a web announcement service. A second router for controlling the; And a specific server providing a web announcement service by transmitting a web announcement screen mapped to an IP address according to the access attempt to the user terminal based on a previously stored web announcement screen for each web server.

In detail, the specific server is a security device built for network security, and the web announcement service may be provided by a web server daemon running inside the security device.

Specifically, the forced routing function stores specific routing information such that, when a failure of the web server occurs, a connection attempt using the IP address is transmitted to the specific server via the second router instead of the first router. At least one of the switch and the router sharing with the switch and the router between the user terminal and the web server and receiving the access attempt of the user terminal using the IP address, transmits the access attempt instead of the first router. It can be delivered to 2 routers.

A router apparatus according to a second aspect of the present invention for achieving the above object, routing for controlling the routing path between the user terminal and the server of the IP address attempting to connect using the IP address based on the predetermined routing information part; And a disability chapter for recognizing whether there is a specific web server where a failure occurs. When recognizing the specific web server, the user stores the specific routing information so that the connection attempt using the IP address of the specific web server is transmitted to the specific server providing the web announcement service via the router device instead of the separate first router. A control unit sharing a switch and a router between the terminal and the specific web server; The routing unit controls a routing path between the user terminal and the specific server by forcibly bypassing a connection attempt of the user terminal using the IP address of the specific web server to the specific server based on the specific routing information.

Specifically, the first router controls the routing path between the user terminal and the specific web server attempting to connect using the IP address of the specific web server based on previously stored routing information for the specific web server. The specific routing information may be set to a greater number of subnet masks for IP addresses of the specific web server than routing information of the specific web server stored in the first router.

Specifically, when the failure recovery of the specific web server is recognized, may further include a failure recovery reflecting unit for deleting the stored specific routing information.

A method of operating a router device according to a third aspect of the present invention for achieving the above object comprises: a handicapped step of recognizing whether there is a specific web server in which a failure occurs; When recognizing the specific web server, the user stores the specific routing information so that the connection attempt using the IP address of the specific web server is transmitted to the specific server providing the web announcement service via the router device instead of the separate first router. Activating a forced routing function shared with a switch and a router between the terminal and the specific web server; And a forced routing step of controlling a routing path between the user terminal and the specific server by forcibly bypassing a connection attempt of the user terminal using the IP address of the specific web server to the specific server based on the specific routing information. do.

Specifically, the first router controls the routing path between the user terminal and the specific web server attempting to connect using the IP address of the specific web server based on previously stored routing information for the specific web server. The specific routing information may be set to a greater number of subnet masks for IP addresses of the specific web server than routing information of the specific web server stored in the first router.

Specifically, the method may further include deleting the stored specific routing information when recognizing a failure recovery of the specific web server.

In detail, the specific server is a security device built for network security, and the web announcement service may be provided by a web server daemon running inside the security device.

Therefore, according to the web notification service system of the present invention, and the router apparatus and the method of operating the router apparatus applied thereto, the web to the customer (user terminal) of the client company in case of failure of the client web server while minimizing the design change and the process of the network equipment. The effect of realizing a web announcement service that can notify the server of failure can be derived.

1 is an exemplary view showing a service environment (system) in which the existing web announcement service is realized.
2 is an exemplary view showing a web notification service system according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a router apparatus according to an embodiment of the present invention.
4 is an operation flowchart showing a method of operating a router apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

The present invention relates to a technique for providing a web announcement service.

In general, when a user terminal wants to access a web server through the Internet, the user terminal obtains an IP address of the domain of the web server from a DNS (Domain Name Service) server of the Internet service provider. After that, the web server can be accessed through the Internet using the obtained IP address.

On the other hand, due to work on the web server or unexpected failure of the web server (e.g., internet line failure, etc.), there is a failure situation in which the user terminal cannot access the web server or use normal web services even if the user terminal is connected. May occur.

In the event of such a failure, a large number of unspecified customers (user terminals) attempting to access the web server cannot know why the normal web service cannot be used. Dissatisfaction / convenience will increase as you will need to inquire separately at the customer center.

Therefore, when a customer's web server fails, the necessity of providing a web notification service that can notify the customer's customer (user terminal) of the web server's failure is emerging, and a service environment in which the web notification service is currently realized (provided). The system will be described with reference to FIG. 1 as follows.

As shown in FIG. 1, when a customer (hereinafter, referred to as a user terminal 10) of a client company wants to access a web server (eg, 50) through the Internet, the user terminal 10 may be a DNS server of an Internet service provider. 40 to request an IP address for the domain of the web server 50 (Query), DNS server 40 is the user terminal 10 to the IP address of the web server 50 mapped to the requested domain Provide in response.

Thus, the user terminal 10 receives a response from the DNS server 40, accesses the web server 50 through the Internet using the verified / obtained IP address, and receives a web screen provided from the web server 50. You can use normal web services such as / display.

Here, in the process of connecting the user terminal 10 to the DNS server 40 of the Internet service provider, and the process of connecting the user terminal 10 to the web server 50, the nodes of the same network and / or another network (eg : At least one switch and / or at least one router controlling a routing path between a terminal, a network device, and a server).

In FIG. 1, for convenience of description, at least one switch and / or at least one router involved in a process of the user terminal 10 connecting to the DNS server 40, located at the end of the DNS server 40. The router 30 is shown as an example.

In addition, as shown in FIG. 1, the existing web notification service providing method is provided with a separate notification server 70 for providing a web notification service, and presupposes a design change of the DNS server 40.

In the following description, it is assumed that a failure situation of the web server 50 occurs among the client's web servers (eg, 50, 60, etc.).

In this case, according to the existing web notification service providing method, the DNS server 40, when receiving an IP address request (Query) for the domain of the web server 50, instead of responding to the IP address of the web server 50, the notification server The design is changed by the operator, such as changing the mapping address to respond to the IP address of 70.

Accordingly, according to the existing web notification service providing method, the user terminal 10 for querying the IP address to the DNS server 40 to access the web server 50 in a failure state of the web server 50, DNS The server 40 receives the IP address of the notice server 70 instead of the IP address of the web server 50, and uses the IP address of the notice server 70 to confirm / acquire the notice server 70 through the Internet. And the web notification service, such as receiving / displaying a web announcement screen explaining the reason why the web server 50 cannot use the normal web service from the notification server 70.

In FIG. 1, for convenience of description, at least one switch and / or at least one router that is involved in a process in which the user terminal 10 is connected to the notification server 70 is located at the end of the notification server 70. The router 20 is shown as an example.

As such, in the case of the existing web notification service providing method, a separate notification server 70 should be installed, and the IP address of the web server in the existing network equipment, that is, DNS server 40, whenever a failure occurs in the client's web server. Instead, change the mapping address to respond to the IP address of the notice server 70, and if the failure situation is solved again, the design change to restore the mapping address to respond to the IP address IP address of the web server every time is premised (accompanying). As a result, all processes for providing a service are complicated.

That is, the existing web announcement service providing method must be accompanied by a design change and complicated process for the existing network equipment, that is, DNS server 40, there is a problem that is not reasonable in terms of performance and operation.

Thus, in one embodiment of the present invention, in order to solve the above problems, the web notification service that can notify the customer of the customer (user terminal) of the web server failure when the customer's web server failure, design changes and I would like to propose a method that can be realized by minimizing the process.

2 shows a web notification service system according to an embodiment of the present invention.

As shown in FIG. 2, a first router for controlling a routing path between a user terminal and a web server attempting to connect using an IP address of a web server and a failure of the web server based on preset routing information. A second router for controlling a routing path between the user terminal and the specific server by forcibly bypassing a connection attempt of the user terminal using the IP address to a specific server providing a web announcement service based on a forced routing function activated at the time of occurrence. And a specific server providing a web announcement service by transmitting a web announcement screen mapped to an IP address according to the access attempt to the user terminal based on a previously stored web announcement screen for each web server.

In the web notification service system according to an embodiment of the present invention, the first router assumes a failure situation of the web server 50 among the web servers (eg, 50, 60, etc.) of the client company. It refers to a router located at the end of the web server 50 in the situation, Figure 2 shows the router 30 as an example.

In FIG. 2, for convenience of description, the router located at the end of the DNS server 80 is also assumed to be the router 30.

Thus, when the customer's customer, that is, the user terminal 10 requests the IP address to the DNS server 80 to access the web server 50, the corresponding query is at least one switch and / or at least one. The router 30 is transmitted to the first router, that is, the router 30, and the router 30 transmits the corresponding query to the DNS server 80 based on the preset routing information, thereby allowing the user terminal 10 to transmit the DNS. The routing path between the user terminal 10 and the DNS server 40 can be controlled to be connected to the server 80.

The DNS server 80 provides the IP address of the web server 50 mapped to the requested domain in response to the user terminal 10.

At this time, according to an embodiment of the present invention, in the DNS server 80, whether a failure does not occur in the customer's web server (for example 50) or if a failure occurs, regardless of the request from the user terminal 10 Provides the IP address of the web server 50 mapped to the domain in response.

That is, according to the present invention, the DNS server 80, in the existing web notification service to change the mapping address every time a failure situation occurs in the client's web server and restore the mapping address whenever the failure situation is solved again. Is not accompanied by design changes.

Accordingly, the user terminal 10 will attempt to connect using the IP address of the web server 50 received / received from the DNS server 80.

In this case, assuming that the web server 50 is not in a failure state, the aforementioned connection attempt of the user terminal 10 is transmitted to the first router, that is, the router 30 via at least one switch and / or at least one router. The router 30 transmits the connection attempt to the web server 50 based on the preset routing information, so that the user terminal 10 accesses the web server 50 and is provided by the web server 50. The routing path between the user terminal 10 and the web server 50 may be controlled to use a normal web service such as receiving / displaying a screen.

In the web announcement service system according to an embodiment of the present invention, the specific server is a network device that provides a web announcement service implemented in the present invention, and more preferably, a security device built for network security.

Accordingly, in FIG. 2, the UTM device, which is one of the security devices built for network security, is shown as a specific server providing a web announcement service realized in the present invention. Hereinafter, the UTM device 90 instead of the specific server is shown. Collectively I will explain.

The UTM device 90, which is one of advanced security devices such as processing / operation, has a built-in web server function, and in the present invention, a pre-built security device such as UTM device for network security. (90) The web announcement service will be realized by utilizing the internal web server function.

More specifically, it is preferable that the web announcement service realized by the present invention is provided by a web server daemon running inside the UTM device 90.

That is, according to the present invention, without installing a separate notification server 70 for providing a web notification service, more specifically, the web server function (ie, web server) inside the UTM equipment 90 more than the existing security equipment Daemon) to realize the web announcement service.

In the web notification service system according to an embodiment of the present invention, the second router refers to a router located at the end of a specific server, that is, the UTM device 90, for the web announcement service implemented in the present invention. The router 100 is shown.

The second router, that is, the router 100, attempts to access the user terminal 10 using the IP address of the web server 50 based on the forced routing function activated when a web server (for example, 50) fails. When delivered, the connection attempt is forcibly bypassed to a specific server, that is, the UTM device 90 to control the routing path between the user terminal 10 and the UTM device 90.

Here, the forced routing function, when a failure of the web server (for example, 50), the connection attempt using the IP address of the web server 50 is a second router, router 100 instead of the original first router, router 30 It is a function to store specific routing information to be delivered to the UTM device 90 via) and share with the switch and router between the user terminal 10 and the web server 50.

Here, the specific routing information is set to a larger number of subnet masks for the IP address of the web server 50 than the routing information of the web server 50 stored in the first router, that is, the router 30. It is preferable.

For example, if the subnet mask set to the IP address of the web server 50 in the routing information of the web server 50 stored in the router 30 is 24bit, the router 100 is connected to the web server by the forced routing function. For certain IP addresses of 50), specific routing information having more than 24 bits (or more subdivided) subnet masks, for example 32 bits, is stored.

Switches and routers that control routing paths between nodes (e.g., terminals, network equipment, servers, etc.) on the same network and / or other networks may send packets (e.g., queries, connection attempts, etc.) In order to establish a routing path (control) for transmitting up to an address), routing information (or a routing path configurable based on routing information) may be exchanged with another adjacent switch and / or router.

Accordingly, in the router 100 located at the end of the UTM device 90, based on the forced routing function activated when a failure of the web server 50 occurs, the above-described specific routing information is stored and other adjacent switches and / or routers are stored. For example, the user terminal 10 and the web server 50 by exchanging and sharing switches and routers between the user terminal 10 and the web server 50 with routing information (or a routing path configurable based on the routing information). Allows switches and routers between to use as a basis for later routing path establishment (control).

On the other hand, the switch and the router use the various factors based on the predefined factors when setting the routing path (control) for delivering the packet (eg, query, connection attempt, etc.) to the destination (destination IP address). The optimal routing path is set (controlled). The subnet mask set in the destination IP address is one of the important factors used at this time.

Thus, the switch or router that receives the connection attempt (packet) of the user terminal 10 using the IP address of the web server 50, the other adjacent switch and / or router (router 30, router 100) In the process of establishing (controlling) a routing path for delivering a connection attempt (packet) based on known routing information (or a routing path that can be set based on routing information). The 32-bit is transmitted to the connection attempt (packet) to the router 100 having a specific routing information (or a routing path configurable based on the specific routing information).

Accordingly, when the access attempt (packet) of the user terminal 10 using the IP address of the web server 50 is delivered, the router 100 transmits the access attempt (packet) to the UTM device ( 90), the routing path between the user terminal 10 and the UTM device 90 can be controlled so that the user terminal 10 connects to the UTM device 90.

In this case, the UTM device 90 executes a web server daemon upon receiving a web service traffic, that is, a web server 50 using the IP address of the web server 50, and sends the web server daemon to the web server. You can redirect to the daemon.

Accordingly, the web server daemon executed in the UTM device 90 displays the web announcement screen of the web server 50 mapped to the IP address according to the current connection attempt, based on the previously stored web announcement screen for each web server. By transmitting to the user terminal 10 to provide a web notification service, so that the user terminal 10 can use the web notification service, such as receiving / displaying the web notification screen.

In this case, since the capacity of the web announcement screen that can be produced as an html file is very small, it is difficult in terms of resources in storing / managing web announcement screens for each web server in the web server daemon in the UTM device 90. Will not be at all.

As described above, in the web notification service system according to an embodiment of the present invention, there is no failure to install a separate notification server for providing a web announcement service, without accompanying design changes to existing network equipment, that is, DNS server, With a simple process of storing and sharing specific routing information (setting a more detailed subnet mask (e.g. 32 bit) on the web server IP address), the web server is provided to the customer's customer (user terminal) in case of failure of the client's web server. It is possible to realize a web notification service that can notify the fact of failure.

Hereinafter, a configuration of a router (router device) applied in the web announcement service system of the present invention will be described in more detail with reference to FIG. 3.

Figure 3 shows a schematic configuration of a router device (hereinafter, router 100) according to an embodiment of the present invention.

As shown in FIG. 3, the router 100 according to an exemplary embodiment of the present invention has a routing path between a user terminal attempting to connect using an IP address and a server of the IP address based on preset routing information. Routing unit 110 for controlling the, and the disabled 120 to recognize whether there is a specific web server failure occurs, and when the specific web server, the connection attempt using the IP address of the specific web server is separate And a control unit 140 for storing specific routing information to be transmitted to a specific server providing a web announcement service through the router device instead of the first router, and sharing the switch and router between a user terminal and the specific web server. In response to the specific routing information, the routing unit 110 forcibly bypasses a connection attempt of a user terminal using the IP address of the specific web server to the specific server. , And it controls the user terminal and the routing path between a particular server.

In addition, the router 100 may further include a failover recovery unit 130.

The whole or at least part of the configuration of the router 100 may be implemented in the form of a hardware module or a software module, or may be implemented in the form of a combination of a hardware module and a software module.

Here, the software module may be understood as, for example, an instruction executed by a processor controlling an operation in the router 100, and the instruction may have a form mounted in a memory in the router 100.

After all, the router 100 according to an embodiment of the present invention through the above-described configuration, while minimizing the design change and the process of the network equipment, the fact that the web server failure to the customer (user terminal) of the customer of the customer web server The present invention provides a technology (a method) for providing a web announcement service that can be known. Hereinafter, each component in the router 100 for realizing this will be described in more detail.

The routing unit 110 controls the routing path between the user terminal 10 and the server of the IP address that attempts to connect using the IP address based on the predetermined routing information managed in the form of the routing table 150.

That is, in the router 100 of the present invention, the routing unit 110 transmits a connection attempt (packet) of the user terminal 10 attempting to connect using an IP address (IP address of the destination) from a lower switch or a router. If so, the routing attempt between the user terminal 10 and the server of the IP address may be controlled by transferring the connection attempt (packet) to the server of the IP address based on the predetermined routing information.

The routing path control (setting) operation of the routing unit 110 will be the same as the routing path control (setting) operation of a general router.

The disabled branch 120 recognizes whether there is a specific web server where a failure occurs.

For example, a failure of a specific web server may be requested from a customer company subscribed to a web notification service or a non-subscribed company.

In this case, the disability guide 120 may recognize the web server that is requested for the notification of the failure as the specific web server where the failure occurs.

Alternatively, in the router 100 of the present invention or another network device, the packet is delivered at regular intervals to the web server of the customer subscribed to the web announcement service to be realized in the present invention, so that a normal packet response is returned. You can check whether or not.

In this case, the disability branch 120 may recognize a web server to which a normal packet response is not returned among the web servers of the client company as a specific web server in which the failure occurs.

When the controller 140 recognizes a specific web server that is failing, the controller 140 attempts to connect to the web server using the IP address of the specific web server via the router 100 instead of a separate first router, that is, a router located at the end of the specific web server. It stores specific routing information to be delivered to a specific server that provides a notification service, that is, the above-described UTM device 90 and share with the switch and router between the user terminal 10 and a specific web server.

The controller 140 may be referred to as a functional unit that performs a forced routing function that is activated in the router 100 as described above with reference to FIG. 2.

Hereinafter, for convenience of description, as a specific web server recognized the occurrence of a failure, it will be described referring to the web server 50 shown in FIG.

As described above, the first router described above, that is, the router (router 30 of FIG. 2) located at the end of the web server 50 in which the failure is recognized, has previously stored routing information for the web server 50. Based on the above, the routing path between the user terminal 10 and the web server 50 that attempts to access using the IP address of the web server 50 can be controlled.

Specifically, for example, the user terminal 10 will attempt to connect using the IP address of the web server 50 received / received from the DNS server 80 and confirmed / obtained.

In this case, assuming that the web server 50 is not in a failure state, the aforementioned connection attempt of the user terminal 10 is transmitted to the first router, that is, the router 30 via at least one switch and / or at least one router. The router 30 transmits the connection attempt to the web server 50 based on the predetermined routing information, whereby the user terminal 10 accesses the web server 50 and is provided by the web server 50. The routing path between the user terminal 10 and the web server 50 may be controlled to use a normal web service such as receiving / displaying a web screen.

On the other hand, the router 140 according to an embodiment of the present invention more specifically, the control unit 140, when the failure occurs web server 50 is recognized, the connection attempt using the IP address of the web server 50 is original Instead of the router 30, the routing table 150 stores specific routing information to be transmitted to the UTM device 90 via the router 100 and switches and routers between the user terminal 10 and the web server 50. Share.

In this case, the specific routing information includes a larger number (or more granular) subnet masks for the IP address of the web server 50 compared to the routing information of the web server 50 stored in the first router, that is, the router 30. It is preferable to be set.

For example, if the subnet mask set to the IP address of the web server 50 in the routing information of the web server 50 stored in the router 30 is 24bit, the router 100 is connected to the web server by the forced routing function. For certain IP addresses of 50), specific routing information having more than 24 bits (or more subdivided) subnet masks, for example 32 bits, is stored.

And, more specifically, the controller 140 stores the specific routing information with respect to the web server 50 in which a failure occurs as described above, and then, other routers and / or adjacent switches. Routers, for example, the user terminal 10 and the web server 50 by exchanging and sharing the switches and routers between the user terminal 10 and the web server 50 and routing information (or a routing path configurable based on the routing information). The switches and routers are used as a basis for later routing path establishment (control).

In the present invention, since there is no design change (mapping address change / restore) in the DNS server 80, the user terminal 10 receives a response from the DNS server 80 even in the case of a failure of the web server 50. The connection will be attempted using the IP address of the confirmed / obtained web server 50.

Thus, the switch or router that receives the connection attempt (packet) of the user terminal 10 using the IP address of the web server 50, the other adjacent switch and / or router (router 30, router 100) In the process of establishing (controlling) a routing path for delivering a connection attempt (packet) based on known routing information (or a routing path that can be set based on routing information). The 32-bit is transmitted to the connection attempt (packet) to the router 100 having a specific routing information (or a routing path configurable based on the specific routing information).

Thus, more specifically, the router 110 according to an embodiment of the present invention, the routing unit 110, the connection attempt (packet) of the user terminal 10 using the IP address of the web server 50 is a lower switch or router When transmitted from the UE, the connection attempt (packet) is forcibly bypassed to the UTM device 90 based on the stored specific routing information, so that the user terminal 10 and the UTM device are connected to the UTM device 90. It is possible to control the routing path between the 90.

In addition, the failure recovery reflecting unit 130, when recognizing the failure recovery of a specific web server, deletes the specific routing information previously stored in the routing table 150.

For example, it may be requested to reflect the failure recovery of a specific web server from a customer company subscribed to a web announcement service or a customer not subscribed to in the present invention.

In this case, the failure recovery reflecting unit 130 may recognize the web server that is requested to reflect the failure recovery among the web servers that are notified of the failure occurrence notification as a specific failed web server.

Alternatively, in the router 100 of the present invention or another network device, the packet is delivered at regular intervals to the web server of the customer subscribed to the web announcement service to be realized in the present invention, so that a normal packet response is returned. You can check whether or not.

In this case, the failure recovery reflecting unit 130 may recognize a web server to which a more normal packet response is returned among the web servers recognized as a failure, as a specific failed web server.

When the failure recovery reflection unit 130 detects a failure of a specific web server, for example, the web server 50, the failure recovery reflection unit 130 may be configured for the web server 50 stored in the routing table 150 by the controller 140 (forced routing function). You can delete specific routing information.

In this case, when the user terminal 10 attempts to connect using the IP address of the web server 50 received / received from the DNS server 80, the corresponding connection attempt (packet) is performed by the web server 50. The router 30 will be delivered to the original router 30 located at the end, and the router 30 transmits the connection attempt to the web server 50 based on the preset routing information, whereby the user terminal 10 transmits the web server 50. It will control the routing path between the user terminal 10 and the web server 50 to access and to use a normal web service, such as receiving / displaying the web screen provided from the web server 50.

As described above, the web announcement service system and the router apparatus applied thereto according to an embodiment of the present invention do not install a separate public announcement server for providing a web announcement service, and change the design of an existing network device, that is, a DNS server. Without the need for a web server, a simple process of storing and sharing specific routing information (such as setting a more detailed subnet mask (eg 32-bit) on the web server IP address) for a failed web server is required. It is possible to realize a web announcement service that can notify a user terminal of a web server failure.

Hereinafter, referring to FIG. 4, a method of operating a router device according to an embodiment of the present invention will be described in detail.

For convenience of description, the following description refers to the router 100 as the router device of the present invention and to refer to the reference numerals shown in FIG.

In the operation method of the router apparatus of the present invention, the router 100 recognizes whether there is a specific web server in which a failure occurs (S10).

For example, the router 100 may recognize a web server that has been requested for a failure notification as a specific web server that has failed, or a normal packet response may not be returned to a packet periodically transmitted among client web servers. You can recognize a web server as a specific failed web server.

Hereinafter, for convenience of description, it will be assumed that a failure occurs in the web server 50 as in the above-described embodiment.

In the operation method of the router apparatus of the present invention, the router 100 recognizes a specific web server, that is, a web server 50 that has a failure (S10 Yes), and attempts to connect using the IP address of the web server 50 to the original router. Instead of (30) stores the specific routing information to be delivered to the UTM device 90 via the router 100 in the routing table 150 (S20).

In this case, the specific routing information includes a larger number (or more granular) subnet masks for the IP address of the web server 50 compared to the routing information of the web server 50 stored in the first router, that is, the router 30. It is preferable to be set.

For example, if the subnet mask set to the IP address of the web server 50 in the routing information of the web server 50 stored in the router 30 is 24bit, the router 100 is connected to the web server by the forced routing function. For certain IP addresses of 50), specific routing information having more than 24 bits (or more subdivided) subnet masks, for example 32 bits, is stored.

In the operation method of the router apparatus of the present invention, the router 100 stores specific routing information with respect to the web server 50 in step S20, and then another adjacent switch and / or router such as the user terminal 10 and the web. Switch and router between the server 50 and the routing information (or routing path that can be set based on the routing information) by sharing each other (S30), the switch and router between the user terminal 10 and the web server 50 Use as a basis for later routing path establishment (control).

In the present invention, since there is no design change (mapping address change / restore) in the DNS server 80, the user terminal 10 receives a response from the DNS server 80 even in the case of a failure of the web server 50. Attempt to connect using the IP address of the web server 50 confirmed / acquired (S40).

Thus, the switch or router that receives the connection attempt (packet) of the user terminal 10 using the IP address of the web server 50, the other adjacent switch and / or router (router 30, router 100) In the process of establishing (controlling) a routing path for delivering a connection attempt (packet) based on known routing information (or a routing path that can be set based on routing information). The 32-bit is transmitted to the connection attempt (packet) to the router 100 having a specific routing information (or a routing path configurable based on the specific routing information).

Therefore, in the operation method of the router apparatus of the present invention, the router 100 attempts to access the packet when the connection attempt (packet) of the user terminal 10 using the IP address of the web server 50 is transmitted from the lower switch or the router. By forcing (packet) to bypass the UTM device (90) based on the stored specific routing information (S50), between the user terminal 10 and the UTM device 90 so that the user terminal 10 is connected to the UTM device (90) You can control the routing path.

In this case, the UTM device 90 executes a web server daemon upon receiving a web service traffic, that is, a web server 50 using the IP address of the web server 50, and sends the web server daemon to the web server. You can redirect to the daemon.

Accordingly, the web server daemon executed in the UTM device 90 displays the web announcement screen of the web server 50 mapped to the IP address according to the current connection attempt, based on the previously stored web announcement screen for each web server. By transmitting to the user terminal 10 to provide a web notification service, so that the user terminal 10 can use the web notification service, such as receiving / displaying the web notification screen (S60).

In addition, in the operation method of the router device of the present invention, the router 100 recognizes a failure recovery of a specific web server, that is, the web server 50 (S70 Yes), and the web server 50 stored in the routing table 150 in step S20. Specific routing information for) can be deleted (S80).

In this case, when the user terminal 10 attempts to connect using the IP address of the web server 50 received / received from the DNS server 80, the corresponding connection attempt (packet) is performed by the web server 50. The router 30 will be delivered to the original router 30 located at the end, and the router 30 transmits the connection attempt to the web server 50 based on the preset routing information, whereby the user terminal 10 transmits the web server 50. It will control the routing path between the user terminal 10 and the web server 50 to access and to use a normal web service, such as receiving / displaying the web screen provided from the web server 50.

As described above, according to the present invention, without installing a separate notification server for providing a web announcement service, without accompanying design changes to existing network equipment, that is, DNS server, specific routing information for the failed web server ( A simple process of storing and sharing a more detailed subnet mask (e.g. 32-bit) in the web server IP address. In the event of a client's web server failure, a web notification can be provided to the customer's customer (user terminal). The service can be realized.

Meanwhile, the functional operations and implementations of the subject matter described in this specification may be implemented in digital electronic circuitry, computer software, firmware or hardware including the structures and structural equivalents disclosed herein, or one or more of them. It can be implemented in combination. Implementations of the subject matter described herein may be embodied as one or more modules related to computer program instructions encoded on a program storage medium of tangible type for controlling or by the operation of one or more computer program products, ie control systems. Can be implemented.

The computer readable medium may be a machine readable storage device, a machine readable storage substrate, a memory device, a composition of materials affecting a machine readable propagated signal, or a combination of one or more thereof.

As used herein, the term "system" or "apparatus" encompasses all the mechanisms, devices, and machines for controlling data, including, for example, programmable processors, computers, or multiple processors or computers. The control system may include, in addition to hardware, code that forms an execution environment for a computer program on demand, such as code constituting processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more thereof. .

Computer programs (also known as programs, software, software applications, scripts, or code) may be written in any form of programming language, including compiled or interpreted languages, or a priori or procedural languages. It can be deployed in any form, including components, subroutines, or other units suitable for use in a computer environment. Computer programs do not necessarily correspond to files in the file system. A program may be in a single file provided to the requested program, in multiple interactive files (eg, a file that stores one or more modules, subprograms, or parts of code), or part of a file that holds other programs or data. (Eg, one or more scripts stored in a markup language document). The computer program may be deployed to run on a single computer or on multiple computers located at one site or distributed across multiple sites and interconnected by a communication network.

Computer-readable media suitable for storing computer program instructions and data, on the other hand, include, for example, semiconductor memory devices such as EPROM, EEPROM, and flash memory devices, such as magnetic disks such as internal hard disks or external disks, magneto-optical disks, and CDs. It may include all types of nonvolatile memory, media and memory devices, including -ROM and DVD-ROM disks. The processor and memory can be supplemented by or integrated with special purpose logic circuitry.

Implementations of the subject matter described herein may include, for example, a backend component such as a data server, or include a middleware component such as, for example, an application server, or a web browser or graphical user, for example, where a user may interact with the implementation of the subject matter described herein. It may be implemented in a computing system that includes a front end component, such as a client computer with an interface, or any combination of one or more of such back end, middleware or front end components. The components of the system may be interconnected by any form or medium of digital data communication such as, for example, a communication network.

Although the specification includes numerous specific implementation details, these should not be construed as limiting to any invention or the scope of the claims, but rather as a description of features that may be specific to a particular embodiment of a particular invention. It must be understood. Likewise, certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable subcombination. Furthermore, while the features may operate in a particular combination and may be initially depicted as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, the claimed combination being a subcombination Or a combination of subcombinations.

In addition, although the drawings depict operations in a particular order, it is to be understood that such operations must be performed in the specific order or sequential order shown in order to obtain desirable results or that all illustrated acts must be performed. Can not be done. In certain cases, multitasking and parallel processing may be advantageous. Moreover, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products. It should be understood that it can.

As such, this specification is not intended to limit the invention to the specific terms presented. Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art can make modifications, changes, and variations to the examples without departing from the scope of the invention. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

According to the web notification service system of the present invention and a router device and a method of operating the router device according to the present invention, web server failure to a customer (user terminal) of a client company when the client's web server fails while minimizing the design change and process of the network equipment. In realizing the web announcement service that can be notified of the fact, the possibility of marketing or sales of the applied device is not only sufficient for the use of the related technology, but also practically and clearly performed by exceeding the limitation of the existing technology. It is an invention with industrial applicability as it exists.

100: router device
110: routing unit 120: disabled branch
130: failure recovery reflection 140: control unit
150: routing table

Claims (10)

A first router controlling a routing path between a user terminal and a web server attempting to access using an IP address of a web server based on preset routing information;
On the basis of the forced routing function activated when a failure of the web server occurs, the user attempts to bypass the access attempt of the user terminal using the IP address by using specific routing information to be delivered to a specific server providing a web announcement service. A second router controlling a routing path between a user terminal and the specific server; And
On the basis of the pre-stored web notification screen for each web server, the web notification screen mapped to the IP address according to the access attempt to include a specific server for providing a web notification service to the user terminal,
The web notification service system, characterized in that to notify whether the failure of the web server by storing and sharing the specific routing information for the web server. The method of claim 1,
The specific server,
A security equipment built for network security, the web notification service system characterized in that the web notification service is provided by a web server daemon (Demon) running inside the security equipment. The method of claim 1,
The forced routing function,
In the event of a failure of the web server, a connection between the user terminal and the web server is stored and stores specific routing information that allows an access attempt using the IP address to be transmitted to the specific server via the second router instead of the first router. And share with routers,
And at least one of the switch and the router, which receives the access attempt of the user terminal using the IP address, to forward the access attempt to the second router instead of the first router. In the router device,
A routing unit controlling a routing path between a user terminal attempting to access using an IP address and a server of the IP address based on preset routing information; And
Disability chapter for recognizing whether there is a specific web server that a failure occurs;
When recognizing the specific web server, the user stores the specific routing information so that the connection attempt using the IP address of the specific web server is transmitted to the specific server providing the web announcement service via the router device instead of the separate first router. A control unit sharing a switch and a router between the terminal and the specific web server;
The routing unit,
Controlling a routing path between the user terminal and the specific server by forcibly bypassing an access attempt of the user terminal using the IP address of the specific web server to the specific server based on the specific routing information,
And storing and sharing the specific routing information of the specific web server to notify whether or not the specific web server has a failure. The method of claim 4, wherein
The first router,
Controlling the routing path between the user terminal and the specific web server attempting to access using the IP address of the specific web server based on previously stored routing information for the specific web server,
The specific routing information,
And more subnet masks are set for IP addresses of the specific web server than routing information of the specific web server stored in the first router. The method of claim 4, wherein
And a failure recovery reflecting unit for deleting the stored specific routing information when recognizing a failure recovery of the specific web server. In the operation method of the router device,
Disability recognition step of recognizing whether there is a specific web server that a failure occurs;
When recognizing the specific web server, the user stores the specific routing information so that the connection attempt using the IP address of the specific web server is transmitted to the specific server providing the web announcement service via the router device instead of the separate first router. Activating a forced routing function shared with a switch and a router between the terminal and the specific web server; And
A forced routing step of controlling a routing path between the user terminal and the specific server by forcibly bypassing a connection attempt of the user terminal using the IP address of the specific web server to the specific server based on the specific routing information; ,
And storing and sharing the specific routing information of the specific web server to notify whether or not the specific web server has a failure. The method of claim 7, wherein
The first router,
Controlling the routing path between the user terminal and the specific web server attempting to access using the IP address of the specific web server based on previously stored routing information for the specific web server,
The specific routing information,
And a larger number of subnet masks are set for IP addresses of the specific web server than routing information of the specific web server stored in the first router. The method of claim 7, wherein
And deleting the stored specific routing information when recognizing a failure recovery of the specific web server. The method of claim 7, wherein
The specific server,
A security device built for network security, wherein the web announcement service is provided by a web server daemon running inside the security device.

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