KR100446138B1 - Message pushing method and push system by network admininstrator - Google Patents

Abstract

The present invention relates to a message pushing system and method by a network administrator, and more particularly, to a network in which an administrator of a network can push a message to a communication application of a client belonging to the network without installing any program on a server or a client. It relates to a message pushing method and a push system by an administrator.

In the method for pushing a message to a client connected to the Internet of the present invention, the client detects a response packet of a DHCP server responding to an IP request from a DHCP server. Storing the client information in the cache table of the MPS server; and transmitting the data request packet to the destination server by using the TCP / IP protocol. An MPS server detects the data request packet and compares client information stored in a cache table of the MPS server with information of a client requesting the data request packet to extract the same information; The MPS indicates a state of a transmission flag indicating whether a message is transmitted from the extracted client information. The transmission flag status judging step judged by the server, and if the status of the transmission flag is a message sent state, and the message is not sent, the message and the transmission confirmation flag to the detected data request packet in the MPS (MPS) server Message packet generation step of generating a message packet by inserting the message, the generated message packet is transmitted to the client by the MPS (MPS) server, the message is displayed by the application program of the client, and then to the message packet A transmission acknowledgment flag returning step of returning a transmission acknowledgment flag to the MPS server by an included program; and an MPS server receiving the returned transmission acknowledgment flag changes the state of the transmission flag. And a step of changing the transmission flag information.

Description

MESSAGE PUSHING METHOD AND PUSH SYSTEM BY NETWORK ADMININSTRATOR}

The present invention relates to a message pushing system and method by a network administrator, and more particularly, to a network in which an administrator of a network can push a message to a communication application of a client belonging to the network without installing any program on a server or a client. It relates to a message pushing method and a push system by an administrator.

Clients on a network connected to the Internet use a communication application such as a web browser to transmit and receive information through the network. The transmission and reception of the information is performed by using a uniform resource locator (URL) indicating the location of various pieces of information on the Internet, and the web server receives the information request information from a web browser and packets the web page or applet in response. And send it to the client's web browser through the network.

For example, communication between the web server and the client, the client's web browser downloads the web page and applet, displays the web page on the display of the client system, and executes the applet. If one link is selected in the web page, one request is sent to the web server and the web server sends the selected page.

In the general network system as described above, since the communication is performed only between the client and the server which is the information provider, the network manager cannot unilaterally transmit a specific message necessary for the management of the network to a specific client.

The present invention is to solve the above problems, the present invention is a message pushing method by the network administrator that the network administrator can selectively send a specific message to a specific client when the client and server are communicating and The purpose is to provide a push system.

1 is a schematic configuration diagram of a message push system by a network administrator according to the present invention;

Figure 2 is a data structure diagram of the cache table of the MPS server according to the present invention

3 is a structural diagram of a message packet according to the present invention;

4 and 5 are flowcharts of a message pushing method by a network administrator according to the present invention.

6 is a schematic structural diagram of a message push system by a network administrator according to another embodiment of the present invention;

<Description of Symbols for Main Parts of Drawings>

10 Internet 20 DHCP Server

30 MPS Management Server 34 Message Database

40 routers and 50 hubs

60 MPS Server 70 LAN

71 Client 80 Destination Server

In the method of message pushing by a network administrator according to the present invention, a method of pushing a message to a client connected to the Internet, wherein the client responds to an IP request from a DHCP server. Client information storage step of detecting the response packet of the DHCP server and storing the client information in the cache table of the MPS server, and the client using the TCP / IP protocol to the destination server When the data request packet is transmitted to the MPS server, the MPS server detects the data request packet and compares client information stored in a cache table of the MPS server with information of a client requesting the data request packet. Client searching step of extracting the same information from the client; The transmission flag status determination step of determining the status of the transmission flag to the MPS server, and terminates if the status of the transmission flag is a message sent state, if the message is not sent to the MPS server A message packet generation step of generating a message packet by inserting a message and a transmission confirmation flag into the detected data request packet, and transmitting the generated message packet to the client by an MPS server, After the message is displayed by the program, the acknowledgment flag return step of returning the transmission acknowledgment flag to the MPS server by the program included in the message packet, and the MP received the received transmission acknowledgment flag. (MPS) the server includes a transmission flag information changing step of changing the state of the transmission flag. And a gong.

In addition, the message packet generation step of the message pushing method by the network administrator according to the present invention, the message through the MPS management server for managing a plurality of MPS (MPS) server in the message database pre-stored a plurality of messages Characterized in that it comprises a message receiving step receiving.

A message push system by a network administrator according to the present invention is a network system including a LAN to which a plurality of clients are connected through a router and a hub, and a DHCP server (DHCP) which allocates an IP to a client connecting to the LAN. In the case, connected to the hub detects the IP (IP) response packet of the DHCP server (DHCP) server for the client and stores the client information in the cache table, when the client requests a data packet from the server It is characterized in that it further comprises a Message Pushing Service (MPS) server for pushing the message stored in advance to the client according to the detected information of the client.

In addition, the cache table of the message push system by the network administrator according to the present invention is characterized in that it comprises a transmission flag indicating whether or not the message transmission.

In addition, the message push system by the network administrator according to the present invention is characterized in that the client information includes at least MAC (MAC) information and IP (IP) address.

In addition, the message push system by the network manager according to the present invention, characterized in that the expansion hub is connected to the router is configured to connect a plurality of LANs containing the MPS (MPS) server.

In addition, the message push system by the network administrator according to the present invention, the message database in advance to store the message to be pushed to the client, and transmits the message of the message database to each of the MPS server and the respective MPS It characterized in that it comprises an MPS (MPS) management server for controlling the operation of (MPS).

According to the present invention, a network administrator who provides network equipment and circuits can easily and periodically send messages without installing or loading any program on the client or server.

Hereinafter, a message pushing method and a push system by a network administrator will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a message push system by an administrator according to the present invention, FIG. 2 is a data structure diagram of a cache table of an MPS server according to the present invention, and FIG. 3 is a structural diagram of a message packet according to the present invention. 4 and 5 are flowcharts illustrating a message pushing method by an administrator according to the present invention, and FIG. 6 is a schematic configuration diagram of a message pushing system by an administrator according to another embodiment of the present invention.

As shown in Fig. 1, the message push system according to the present invention manages an IP address in a network on the Internet 10 using a TCP / IP protocol between a client 71 and a server, and transmits the IP address to the client 71. DHCP (Dynamic Host Configuration Protocol, hereinafter referred to as DHCP) server 20, a router 40 for connecting the communication path between the LAN 70 connected to the network, and a LAN composed of the plurality of clients A hub 50 connecting 70 to the router 40 and an IP response packet of the DHCP server 20 connected to the hub 50 to detect the client information. MPS (Message) which stores in a cache table, detects when the client 71 requests a data packet from a server on the Internet, and pushes a prestored message to the client 71 according to the detected client 71 information. Pushing Service, hereinafter referred to as MPS) server (60).

When the client 71 connected to the LAN 70 communicates with the server on the Internet 10, the MPS server 60 detects the packet data to be communicated and stores it in a cache table which is a data storage means. Equipment. In addition, the MPS server 60 includes a program for adding a message stored in advance to the detected information to the client 71.

In other words, when the client 71 loads the network and requests the DHCP server 20 for IP, it detects the response packet of the DHCP server 20 in response thereto and detects the NIC (Network Interface) of the client 71. Media (MAC) address and IP address are detected from the card information and stored in the cache table for each client.

FIG. 2 is a data structure diagram stored in the cache table, and stores information such as the detected MAC address, transmission flag, IP address, access time, and message of the client 71.

The transmission flag consists of a kind of check bit to confirm whether or not the message has been transmitted to the corresponding client.

In addition, when the client 71 requests a data packet from an arbitrary server (hereinafter referred to as a destination server) on the Internet 10, the client 71 detects this and inserts a pre-stored message and a transmission flag to rewrite the message packet. Send to client 71. The delivery confirmation flag refers to information that is automatically transmitted to the MPS server 60 when the message is executed by the application program of the client. It is apparent that the transmission confirmation flag may be changed in another form such as an ACK packet of a TCP protocol or a parameter in an HTTP protocol according to an operating environment.

3 is a structural diagram of the message packet, which is divided into a header part and a data part like a general data packet. The header portion includes an Ethernet header, an IP header, and a TCP header, and inserts the message and the transmission confirmation flag into the data portion.

5 and 6, the client 71 is loaded on the network and requests the IP from the DHCP server 20 (S10).

The DHCP server 20 allocates the IP of the client in response to the IP request of the client 71 (S12), and at this time, the MPS server 60 responds to the DHCP server 20 by the IP request of the client. The client information included in the packet is detected (S14), and the MAC information and IP address of the client are stored in the cache table of the MPS server 60 (S16).

Thereafter, when the client 71 requests data from the destination server 80 through a web browser (S18), the MPS server 60 intercepts the data request packet of the client and detects information of the client requesting data ( S20).

Next, the MAC table and IP address of the client are retrieved from the cache table stored in step S16 to retrieve the same information as the information of the client detected by the data request packet of the client (S22).

Then, if the same information is retrieved, the state of the transmission flag is checked among the information (S24). That is, if the transmission flag is already displayed in the state of sending the message to the client 71 among the retrieved client information, it is terminated. If the transmission flag does not send the message to the client, a message packet is created. (S26).

As shown in FIG. 3, the message packet is generated by inserting a message and a delivery confirmation flag prepared in advance as shown in Table 1 as an embodiment of the web environment.

code Explanation HTTP / 1.1 200 OKDate: Fri, 22 Feb 2002 18:43:08 GMTServer: Apache / 1.3.19 (Unix) PHP / 4.0.4pll mod_ssl / 2.8.3 OpenSSL / 0.9.6X-Powered-By: PHP / 4.0. 4pllConnection: closeContent-Type: text / html A <html> <head> <title> <title> <body> <meta http-equiv = 'REFRESH' content = '0; URL = http: // MPS Server Address / Flag Change CGI Include Page>? Client InformationURL Information> </ body> </ html> B

Table 1 is written in html. Description A part is an HTTP header part. Description B part inserts a message stored in the MPS server 60 into the <body>, and the client 71 is originally sent to the destination server 80. The requested URL is inserted at the same time.

The message packet prepared as described above is pushed to the client 71 (S28) and is displayed to the user by a web browser which is an application program of the client (S30).

At this time, to confirm that the display as the transmission confirmation flag, and to report the confirmed to the MPS server 60 returns a transmission confirmation flag (S32).

The MPS server 60 receiving the transmission confirmation flag changes the state of the transmission flag in the information of the client in the cache table so that the message is not transmitted when the client sends a data request packet to the destination server again. It is. However, this can be changed under the control of the MPS server.

Here, the response of the destination server 80 with respect to the data request packet to the destination server sent by the client 71 is ignored by TCP / IP protocol, and the destination server included in the message packet generated by the MPS server 60. By re-requesting the URL for the client, the client first displays the message and then the request data for the destination server.

Figure 6 is another embodiment of the present invention, by connecting the plurality of LAN (70a ~ 70n) including the MPS server 60 configured as described above by the expansion hub 90, the MPS management server 30 further It is configured to include.

In addition, the MPS management server 30 is configured with a message database 34 that stores a message to be transmitted to the client to control each message sent from the MPS server (60a ~ 60n).

Therefore, each MP to be able to push the message differentially and efficiently to the corresponding client connected to each MPS server (60a ~ 60n) through the MPS management server 30 according to each purpose and characteristic Control the operation of SMP.

As described above, according to the present invention, a message of an administrator providing equipment and a circuit can be transmitted to the client at a set cycle without installing any program or occupying memory on the server or the client. It is possible to generate profits and to push messages that fit the purpose and characteristics of local units and units.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical spirit of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

Claims (7)

In a method for pushing a message to a client connected to the Internet, When the client makes an IP request to the DHCP server, the client detects a response packet of the DHCP server in response to the request and stores the client information in a cache table of the MPS server. Information storage step, When the client transmits the data request packet to the destination server through a communication application using the TCP / IP protocol, the MPS server detects the data request packet and the MPS A client search step of comparing the client information stored in the cache table of the server with the information of the client requesting the data request packet and extracting the same information; A transmission flag status determining step of determining, by the MPS server, a status of a transmission flag indicating whether a message is transmitted from the extracted client information; If the status of the transmission flag is a message sent state is terminated, if the message is not sent to the MPS (MPS) server to generate a message packet by inserting a message and the transmission confirmation flag into the detected data request packet Steps, The generated message packet is transmitted to the client by an MPS server, and after a message is displayed by a communication application program of the client, a transmission acknowledgment flag is set by the program included in the message packet. MPS) returning a confirmation flag to return to the server, And a transmission flag information changing step in which an MPS server receiving the returned transmission confirmation flag changes the state of the transmission flag. The method of claim 1, The message packet generating step may include a message receiving step of receiving a message through an MPS management server managing a plurality of MPS servers in a message database in which a plurality of messages are stored in advance. How to push messages by network administrators. In a network system including a LAN to which a plurality of clients are connected through a router and a hub, and a DHCP server (IP) that allocates IPs to clients accessing the LAN, It is connected to the hub detects the IP (IP) response packet of the DHCP server (DHCP) server for the client and stores the client information in the cache table, if the client requests a data packet to the server and detects it And a Message Pushing Service (MPS) server that pushes a pre-stored message to the client according to the detected client information. The method of claim 3, And the cache table includes a transmission flag indicating whether or not the message is transmitted. The method of claim 3, And said client information comprises at least MAC and IP addresses. The method of claim 3, Message push system by a network administrator, characterized in that the expansion hub is connected to the router is configured to connect a plurality of LANs containing the MPS (MPS) server. The method of claim 6, A message database storing a message to be pushed to the client in advance; Message push by a network administrator, characterized in that it comprises a MPS management server for transmitting a message of the message database to each of the MPS server and controls the operation of each of the MPS (MPS) system.