KR101506223B1 - Automatic Reconnection System For Virtualization Service - Google Patents

Abstract

The present invention relates to an automatic reconnection system for providing a virtualization service, more particularly, to an automatic reconnection system, for providing a virtualization service, which is capable of automatically performing reconnection by detecting abnormal access blocking without the necessity of a reconnection of a client terminal user to a virtualization server if the connection is blocked while the client terminal is connected to the virtualization server to use a virtualization service. A virtualization service system of the present invention includes: a client terminal which has a monitoring agent; a connection broker (CB) manager for authenticating the access of the client terminal and allowing the client terminal to access the virtualization server; and the virtualization server for providing a virtualization service to the accessed client terminal.

Description

[0001] The present invention relates to an automatic reconnection system for virtualization service,

The present invention relates to an automatic reconnection system for providing a virtualization service, and more particularly, to an automatic reconnection system for providing a virtualization service, in which, when a connection between a client terminal and a virtualization server is disconnected abnormally, The present invention relates to a system and method for automatically reconnecting an unauthorized access to a network,

In recent years, virtualization services have become increasingly important for security of internal trade secrets and customer information in corporations and research institutes, and they have consumed a lot of time and manpower to manage distributed PCs, resulting in efficient use and management through a centralized computer environment. It is a field of technology in which research has been concentrated in recent years because of the growing need.

The virtualization service is very important for the quality of the communication state for continuity of work or business and it is very necessary to maintain the service provision until normal connection is blocked.

However, there is a problem that the connection between the actual client terminal and the virtualization server is blocked due to the problem of the client terminal, the problem of the communication connection state, etc. In this case, when the user recognizes the blocking and reconnects via the login authentication, Since it is necessary to connect to the server, it is very troublesome to reconnect the abnormal connection block.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a virtualization service capable of preventing a user of a client terminal from reconnecting to a virtualization server when a connection between the client terminal and the virtualization server is abnormally blocked, The present invention provides an automatic reconnection system for abnormal connection blocking for providing a virtualization service capable of detecting an abnormal connection blocking and performing automatic reconnection.

In order to achieve the above-mentioned object, the present invention provides an automatic reconnection system for blocking an abnormal connection for providing a virtualization service according to the present invention, which authenticates connection between a client terminal having a monitoring agent and the client terminal, And a virtualization server for providing a virtualization service to the connected client terminal, wherein the monitoring agent detects an abnormal connection interruption between the client terminal and the virtualization server, Without performing a separate connection authentication procedure without recognizing the connection disconnection.

The monitoring agent includes a communication status monitoring module for monitoring a communication status when the client terminal is connected to the virtualization server and a blocking status determination module for determining whether the connection blocking is detected through the communication status monitoring module, And a reconnection management module for automatically reconnecting to a virtualization server that is blocked when it is determined that the block is abnormally blocked.

The communication status monitoring module stores reference communication status information when the client terminal and the virtualization server normally access the server. When the client terminal starts connecting to the virtualization server, the communication status monitoring module monitors the communication speed of the client terminal and data transmission / Monitoring in real time whether or not it meets the communication status information; The connection confirmation request is transmitted to the virtualization server when there is no data transmission / reception for a predetermined time due to a sudden drop in the speed of real-time monitoring, do.

If the communication status monitoring module has no abnormality in the communication status and there is no data transmission / reception in the state that the logout is not performed, since the virtualization service is terminated by the user without logout, resources may be consumed while the connection is maintained. A message asking whether to logout the virtualization service is transmitted to the client terminal and displayed.

Wherein the blocking cause determination module determines whether the connection blocking is a normal connection blocking or an abnormal blocking when the connection blocking is detected through the communication status monitoring module; The client terminal checks whether logout has been requested and whether power off has been requested. If there is no request, the client terminal determines that the client terminal is abnormally blocked regardless of the user's intention.

The reconnection management module stores and manages connection information of the virtualization server permitted by the CB manager when the client terminal accesses the virtualization server, and when the abnormal connection is blocked through the blocking cause determination module, the stored access information is retrieved And automatically reconnects to the virtualization server and performs automatic reconnection.

And the reconnection management module repeatedly requests the reconnection for each cycle set in the virtualization server.

Wherein the virtualization server includes a terminal monitoring agent that monitors a communication state with the client terminal in association with the monitoring agent; When the client terminal is connected to the virtualization server, the terminal monitoring agent monitors the communication state with the client terminal. If the connection is blocked, if it is determined that the client terminal is blocked abnormally, the terminal transmits a notification to the CB manager indicating that the connection with the client is abnormally blocked . When a notice of abnormality blocking is transmitted through communication with the monitoring agent of the terminal, the client terminal is switched to the standby state so that the client terminal can reconnect without terminating the session.

The terminal monitoring agent can transmit a connection blocking cause confirmation request to the monitoring agent of the client terminal without immediately terminating the session if the connection is blocked without a normal logout result as a monitoring result, End the session; If there is no response, it is determined that the abnormal block is blocked and the CB manager is notified that abnormal connection with the client terminal is blocked; The CB manager receives the notification and provides connection information to the client terminal to automatically reconnect to the virtualization server; In the reconnection process, data is transmitted and received between the client terminal, the CB manager, and the virtualization server through encrypted communication for data security, and the data encryption key is managed by a key Thereby performing communication. Maintaining the session in a standby state without terminating the session until communication is established from the monitoring agent; When a reconnection request is received from the monitoring agent in the waiting state, the session is connected and reconnected in the same manner as the previous connection state. If there is no response during the predetermined time, the session is terminated and the CB manager is notified that the connection is terminated .

As described above, according to the present invention, when an abnormal connection is blocked in a connected state between a client terminal and a virtualization server to use a virtualization service, the automatic reconnection system for blocking an abnormal connection for providing a virtualization service according to the present invention, Detection of abnormal connection is detected automatically without reconnecting to the server. Therefore, when the connection is blocked abnormally irrespective of the user's intention, it is possible to recognize the user or to perform automatic reconnection without login authentication procedure for reconnection. Lt; / RTI >

FIG. 1 is a system configuration diagram schematically showing an automatic reconnection system according to a preferred embodiment of the present invention, and FIG. 2 is a detailed block diagram of FIG.
3 is a flowchart schematically illustrating a method for automatically reconnecting an abnormal connection in accordance with a preferred embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

Virtualization service refers to a service that enables a virtual PC environment on the Internet to realize a business environment anytime and anywhere without restriction of time and space through various terminals.

FIG. 1 is a system configuration diagram schematically showing an automatic reconnection system according to a preferred embodiment of the present invention, and FIG. 2 is a detailed block diagram of FIG.

1 and 2, an automatic reconnection system according to the present invention comprises a client terminal having a monitoring agent, a CB (Connection Broker) manager for authenticating connection of the client terminal and allowing the client terminal to access the virtualization server, And a virtualization server for providing a virtualization service to the connected client terminal.

The client terminal may be any terminal capable of accessing the Internet, such as a desktop, a PC such as a notebook computer, a smart device such as a smart phone, and a tablet PC.

The CB manager is responsible for assigning a virtualization server to a client terminal according to a user's request.

More specifically, the CB manager includes an authentication module for allowing connection between the client terminal and the virtualization server through client authentication, a server allocation module for identifying the virtualization server in operation status and assigning the virtualization server to the client terminal, And a monitoring module for monitoring the status of the system.

The authentication module confirms the access right of the user through the login authentication of the user who wants to access only the authorized user to connect to the virtualization server and permits the assignment of arbitrary virtual machine through the virtual machine information of the virtualization server to be connected It is the role of

The authentication module is also responsible for setting an environment according to the user account information so that the user can access the virtual machine at a desired time when the use of the virtual machine allocated to the user is terminated.

The server allocation module monitors the real-time operating state of the virtualization server through the monitoring module and allocates the optimal virtualization server to the client terminal.

 The monitoring module monitors in real time the resource allocation status of the virtualization servers, the usage information and the use of the created virtual machines, and allocates the monitoring information to the virtualization server optimal for the client terminal by the server allocation module.

The monitoring agent installed in the client terminal monitors the communication status when the client terminal is connected to the virtualization server to determine whether the client terminal is abnormally blocked if the connection is blocked, And the like.

Therefore, the user can automatically reconnect without any separate reconnection process without recognizing that the connection between the client terminal and the virtualization server in use is temporarily interrupted.

Here, although automatic reconnection is possible only with the monitoring agent, a terminal monitoring agent corresponding to the monitoring agent can be installed in the virtualization server.

When the client terminal is connected to the virtualization server, the terminal monitoring agent monitors the communication state with the client terminal. When the connection is blocked, if the notification of abnormal blocking is transmitted through communication with the monitoring agent of the terminal, the terminal monitoring agent abnormally blocks the client And the like. And switches to the standby state so that the client terminal can reconnect without terminating the session.

The monitoring agent includes a communication status monitoring module for monitoring a communication status when the client terminal is connected to the virtualization server and a blocking status determination module for determining whether the connection blocking is detected through the communication status monitoring module, And a reconnection management module for automatically reconnecting to a virtualization server that is blocked when it is determined to be abnormal blockage.

 The communication status monitoring module stores reference communication status information when the client terminal and the virtualization server normally connect to each other. When the client terminal starts connection to the virtualization server, the communication status monitoring module monitors the communication speed of the client terminal, Whether it is in real time or not.

Here, the reference communication state information may be set based on the communication speed when the monitoring agent is installed in the client terminal and the client terminal first accesses the virtualization server. If there is a change in the communication environment, And can be stored and managed.

The communication status monitoring module transmits a connection confirmation request to the virtualization server if the communication status monitoring module does not match the reference communication status information due to a sudden drop in the real time monitoring result or if there is no data transmission / reception for a predetermined time, .

When the blocking of the connection is detected through the communication status monitoring module, the blocking cause determination module determines whether the blocking of the connection is a communication failure, a temporary abnormal connection blocking due to an error of the client terminal, or a normal connection blocking.

When the connection between the client terminal and the virtualization server is normally interrupted, the client may disconnect the connection through logout to terminate the connection, or may turn off the power of the client terminal without logging out.

On the other hand, when the connection is abnormally blocked, the connection is blocked irrespective of the client's intention, such as a communication state failure or an operation error of the client terminal.

When the blocking of the connection is detected, the blocking cause determination module checks whether the client terminal is requested to log out, checks whether power off is requested, and determines that the blocking is abnormal if there is no request.

The reconnection management module stores and manages connection information of the virtualization server permitted by the CB manager when the client terminal accesses the virtualization server, and when the abnormal connection is blocked through the blocking cause determination module, the stored access information is retrieved Reconnect to the virtualization server.

Here, the connection information may include address information (IP address, virtual machine, etc.) of the virtualization server and login information (ID, PASSWORD) of the user.

Accordingly, when abnormal blocking is detected, the reconnection management module requests reconnection to the virtualization server before the blocking with the stored access information.

Here, since it may take time until connection break occurs and reconnection is possible, the reconnection request can be periodically transmitted until reconnection is established.

If a terminal monitoring agent is formed in the virtualization server terminal, the connection is blocked without a normal logout result as a monitoring result. If the session is disconnected, the session can be terminated immediately, and a connection blocking cause confirmation request can be transmitted to the monitoring agent of the client terminal. When the notification of the normal connection interruption is received from the monitoring agent, the session is terminated. If there is no response, it is determined that the abnormal block is blocked and the CB manager is notified that the client terminal is abnormally blocked. The connection information is automatically provided to automatically reconnect to the virtualization server that has been blocked. The session can be maintained in a standby state without ending the session until communication is established from the monitoring agent.

If the session between the CB manager and the virtualization server is lost, the CB manager automatically accesses the virtualization server.

If a reconnection request is received from the monitoring agent in the waiting state, the session is connected and reconnected in the same manner as the previous connection state. If there is no response during the predetermined time, the session is terminated and the CB manager is notified that the connection is terminated .

Generally, when the connection is abnormally blocked, the session connected to the virtualization server is terminated. Therefore, in order to reconnect the client, the client has to be authenticated again to access the virtualization server.

However, according to the present invention, since the reconnection management module receives the connection information from the CB manager and is automatically reconnected without the user having to recognize the connection disconnection when the abnormal connection is blocked, Gender is increased.

Here, the data used for communication between the client terminal, the CB manager, and the virtualization server at the time of the automatic reconnection may be managed as encrypted data for security, and the key of the encrypted data may be encrypted And automatically performs the communication by performing a key update.

3 is a flowchart schematically illustrating a method for automatically reconnecting an abnormal connection in accordance with a preferred embodiment of the present invention.

Referring to FIG. 3, a monitoring agent is installed in a client terminal.

The monitoring agent can be downloaded and installed from an external application server.

When the user of the client terminal requests the virtualization server access for the virtualization service, the CB manager performs the authentication and allocates the virtualization server.

More specifically, when a user requests access to a virtualization service through a login procedure through a client terminal, the authentication module of the CB manager compares the login information with the login information of the user information stored in the database, A server allocation module allocates an optimal virtualization server to the client terminal, and provides the IP address of the virtualization server to the client terminal.

When the virtualization server is allocated and the IP address is provided as described above, the client terminal accesses the virtualization server through the provided IP address.

When the client terminal accesses the virtualization server, the reconnection management module of the monitoring agent stores the connection information, and the communication status monitoring module operates to monitor the communication status.

Then, when the client terminal is disconnected from the virtualization server, the communication status monitoring module detects it and determines whether the blocking cause determination module is normal blocking or abnormal blocking.

More specifically, the communication status monitoring module monitors the communication status of the client terminal based on the stored reference communication status information, and determines that the connection is blocked if the communication status information does not match the communication status information or there is no data transmission / reception for a predetermined period of time.

In this case, if there is no abnormality in the communication state and there is no data transmission / reception in the state that the logout is not performed, the user may terminate the virtualization service without logging out and the resources may be consumed while the connection is maintained. Therefore, A message asking whether to logout can be transmitted to the client terminal and displayed.

The blocking cause determination module checks whether the client is logged out and whether the power is off. If there is no abnormality, it is determined that the client is abnormally blocked, the reconnection management module notifies the CB manager of abnormal blocking, Try the request.

Here, the reconnection attempt may be repeated periodically until the cause of the connection interruption is solved, so that the reconnection request can be transmitted to the virtualization server.

If the terminal monitoring agent is formed in the virtualization server, the virtualization server terminal may detect the connection blocking. If the terminal monitoring agent detects the connection blocking, the monitoring manager transmits a connection blocking cause confirmation request to the monitoring terminal of the client terminal. If there is no response, it is determined that the abnormal connection is blocked and the CB manager is notified that the connection with the client terminal is abnormally blocked. The server allocation module of the CB manager recognizes that the abnormal connection is blocked and the connection information for automatic reconnection to the monitoring manager of the client terminal Lt; / RTI > Switch to the standby state without ending the session.

Thus, the client terminal requests the virtualization server to reconnect without going through the login process based on the access information.

In the reconnection process, data is transmitted and received between the client terminal, the CB manager, and the virtualization server through encrypted communication for security, and is managed by the data encryption. The key of the data encryption is received through the encryption algorithm at the time of connection And performs automatic updating to perform communication.

Then, when receiving a reconnection request due to abnormal blocking from the monitoring agent, the virtualization server switches the standby state back to the connected state to allow the connection, and if the CB manager does not respond for a predetermined time set in the CB manager, Terminates the session and notifies the client terminal that it has been reconnected. Notifies the CB manager that the connection has been terminated.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: client terminal 20: CB manager
30: Virtualization server

Claims (9)

A CB (Connection Broker) manager for authenticating connection between the client terminal having the monitoring agent and the client terminal, allowing the client terminal to connect to the virtualization server, and a virtualization server for providing the virtualization service to the connected client terminal A virtualization service system comprising:
The monitoring agent
When the client terminal accesses the virtualization server, the reference communication state information is stored when the client terminal and the virtualization server normally connect to each other. When the client terminal starts connecting to the virtualization server, the communication speed and data transmission / And if it does not correspond to the reference communication state information due to a sudden drop in speed or if there is no data transmission / reception for a predetermined period of time, it sends a connection confirmation request to the virtualization server, A communication status monitoring module for monitoring a communication status when it is determined that the connection is blocked when there is no response during a predetermined period of time; And a reconnection management module for reconnecting to a virtualization server that is automatically disconnected when it is determined that the server is abnormally blocked, thereby detecting an abnormal connection interruption between the client terminal and the virtualization server, Wherein the reconnection is automatically performed without an authentication procedure.
delete delete The method according to claim 1,
The communication status monitoring module
If there is no abnormality in the communication state and there is no data transmission / reception in the state that the logout is not performed, the user may terminate the virtualization service without logging out and the connection may be maintained and resources may be consumed. Therefore, And a message to the client terminal is displayed to display the message. The system for automatically reconnecting when an abnormal connection is blocked for providing a virtualization service.
The method according to claim 1,
The blocking cause determination module
When the connection blocking is detected through the communication status monitoring module, whether the connection blocking is normal connection blocking or abnormal blocking;
Wherein the client terminal checks whether logout is requested and whether power off is requested, and determines that the client terminal is in an abnormal block regardless of the user's intention if there is no request.
6. The method of claim 5,
The reconnection management module
Storing the access information of the virtualization server permitted by the CB manager when the client terminal is connected to the virtualization server, and storing the access information of the virtualization server when the client terminal accesses the virtualization server, Wherein the virtual reconnection is performed by attempting a reconnection request and performing an automatic reconnection.
The method according to claim 6,
The reconnection management module
Wherein the virtualization server repeatedly requests the reconnection request at every cycle set by the virtualization server.
The method according to claim 1,
The virtualization server
And a terminal monitoring agent corresponding to the monitoring agent and monitoring a communication state with the client terminal;
The terminal monitoring agent
If the session is disconnected because the connection is blocked without logging out as a monitoring result, a request to check the connection blocking cause is transmitted to the monitoring agent of the client terminal, and if there is a response of normal access blocking, the session is terminated. If there is no response, And automatically reconnects to the virtualization server that has been blocked by the virtualization server.
9. The method of claim 8,
The terminal monitoring agent
If the connection is blocked without a normal logout as a result of the monitoring, the connection blocking cause confirmation request may be transmitted to the monitoring agent of the client terminal without immediately terminating the session. When the notice of normal connection blocking is received from the monitoring agent, the session is terminated ;
If it is determined that there is no response, it is determined that the abnormal block is blocked, and the CB manager is notified that abnormal connection with the client terminal is interrupted;
The CB manager receives the notification and provides connection information to the client terminal to automatically reconnect to the virtualization server;
In the reconnection process, data is transmitted and received between the client terminal, the CB manager, and the virtualization server through encrypted communication for data security, and the data encryption key is managed by a key Wherein the session is not terminated until communication is established from the monitoring agent;
When a reconnection request is received from the monitoring agent in the waiting state, the session is connected and reconnected in the same manner as the previous connection state. If there is no response during the predetermined time, the session is terminated and the CB manager is notified that the connection is terminated The system automatically reconnects when an abnormal connection is blocked to provide a virtualization service.

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