CN111277593A - Multi-line parallel monitoring method based on internal and external network isolation - Google Patents
Multi-line parallel monitoring method based on internal and external network isolation Download PDFInfo
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- CN111277593A CN111277593A CN202010063529.3A CN202010063529A CN111277593A CN 111277593 A CN111277593 A CN 111277593A CN 202010063529 A CN202010063529 A CN 202010063529A CN 111277593 A CN111277593 A CN 111277593A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
- H04L63/302—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information gathering intelligence information for situation awareness or reconnaissance
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Abstract
The invention discloses a multi-line parallel monitoring method based on internal and external network isolation, which comprises the following steps: s101, constructing a multi-line parallel monitoring unit to monitor a network in real time, wherein the multi-line parallel monitoring unit monitors the change of a network protocol IP address of a network interface, the real-time flow of a network card and the state of a network icon; s102, if the change of the IP address of the network protocol is detected, or the real-time flow fluctuation of the network card violates a preset flow model, or the network icon changes, the change of the network connection is judged; and S103, if the network connection is judged to be changed, executing corresponding safety operation. The invention uses program means to immediately execute disconnection or shutdown processing in less than 500 milliseconds according to the set program when monitoring network abnormity (such as network IP change, Internet access monitoring and the like) occurs in a private network or a local area network. The method has the advantages of achieving safety protection of the private network and reducing serious influences caused by network cable disorderly plugging, network error change and the like.
Description
Technical Field
The invention relates to the field of computer security, in particular to a multi-line parallel monitoring method based on internal and external network isolation.
Background
The business private network computer is directly connected with the Internet or accesses the Internet through other networks, and the private network equipment is directly connected with other networks without security protection and strategy setting, and all the network equipment is illegal external connection.
Illegal external connection causes communication between a business private network and the Internet, brings serious security risk to the private network, and violates the physical isolation regulation of the private network and the Internet.
However, in the conventional network monitoring method, a user can change the network setting of the computer within a very short time, and in order to increase the speed of monitoring feedback and to make the monitoring between the network and the user computer more timely, a method is needed to reduce the risk caused by illegal external connection.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention discloses a multiline parallel monitoring method based on internal and external network isolation, which comprises the following steps:
s101, constructing a multi-line parallel monitoring unit to monitor a network in real time, wherein the multi-line parallel monitoring unit monitors the change of a network protocol IP address of a network interface, the real-time flow of a network card and the state of a network icon;
s102, if the change of the IP address of the network protocol is detected, or the real-time flow fluctuation of the network card violates a preset flow model, or the network icon changes, the change of the network connection is judged;
and S103, if the network connection is judged to be changed, executing corresponding safety operation.
Further, the step of further improving the network protocol IP address of the monitoring network interface in S101 further includes:
s111, monitoring the network in real time, wherein the network is monitored in real time by adopting the networkChange in the network frame;
s112, determining whether a different network change occurs, wherein the different network change is a change of a network protocol IP address of a network interface; the change of the network protocol IP address of the network interface is caused by the disconnection of a connected network cable, or the removal of the network cable by a wireless local area network, or the failure of hardware; if the NetworkChange class triggers a NetworkAddressChanged event, determining that a different network change occurs;
and S113, if the different network changes, executing a corresponding processing scheme to disconnect the network, wherein the processing scheme is associated with a NetworkAddress changeEventHandler entrustment through an event processing program, and the disconnecting network determines a corresponding network card through Win32_ NetworkAddress and disables the network card.
Further, the monitoring the real-time traffic of the network card in S101 further includes:
s121, monitoring the flow of the computer, acquiring a network card list of the local computer, then dynamically monitoring the flow of all network cards, and displaying, wherein variables in a network monitor class are defined, information of all adapters of the local computer is obtained by calling monitor.
S122, capturing the current network access action of the user, and predicting the flow in advance for a first preset time according to a flow prediction model corresponding to the network action of the user;
and S123, comparing the predicted flow value with the actual flow, and judging that the network connection changes if the difference value exceeds a first threshold value.
Further, the monitoring the status of the network icon in S101 further includes:
s131, monitoring the state of the network icon in real time, acquiring the network icon based on human vision at intervals of a second preset time, and capturing the network icon;
s132, storing the screenshot picture, and comparing the screenshot picture with the screenshot picture before and after to judge whether the screenshot picture is consistent;
and S133, if the difference value of the screenshot pictures exceeds a second threshold value, judging that the network connection changes.
Still further, the step 102 further comprises: if any monitoring finds that the network connection is changed, S103 is immediately executed.
Further, the executing the corresponding security operation in step 103 further includes: shut down, disable the network card, or connect the network to the virtual machine.
Furthermore, if the corresponding safety operation is executed, the power-off is performed; the S103 further includes: and if the different network changes, executing the CMD to perform shutdown operation.
Further, after S103, the method further includes: and recording the information for executing the corresponding processing scheme into a log.
Further, the S101 further includes:
determining that a program corresponding to the method for disconnecting the different networks based on the private network is started; alternatively, the first and second electrodes may be,
determining that a restart interface is triggered.
Further, after determining that the program corresponding to the method for disconnecting the different networks based on the private network is started, or after determining that the restart interface is triggered, the method further includes:
and when the shutdown interface is detected to be triggered, the process is exited.
Compared with the prior art, the invention has the following beneficial effects: the method for monitoring the disconnection of the different networks in parallel under the private network provided by the invention utilizes a program means and immediately executes disconnection or shutdown processing within less than 500 milliseconds according to a set program when the network abnormality (such as network IP change, Internet access monitoring and the like) occurs in the private network or the local network by monitoring the network abnormality through the real-time monitoring of the network and executing a corresponding processing scheme after the occurrence of the change of the different networks. The method has the advantages of achieving safety protection of the private network and reducing serious influences caused by network cable disorderly plugging, network error change and the like.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a flow chart of the multiline parallel monitoring method based on internal and external network isolation of the present invention.
Detailed Description
Example one
The method for disconnecting the different networks based on the private network provided by the embodiment is implemented as follows:
and S101, monitoring the network in real time.
In particular, the network can be monitored in real time by using NetworkChange in a network frame.
Before executing S101, it is further determined that the method based on the private network disconnection provided in this embodiment is triggered to be executed. The specific determination method may be: the program (such as APP) for executing the method for disconnecting the heterogeneous network based on the private network provided by the embodiment is started. The method can also comprise the following steps: it is determined that the restart interface is triggered, for example, a restart button on an interface of a program (for example, APP) based on the method for disconnecting the heterogeneous network under the private network provided in this embodiment is clicked.
For the scheme that the program (such as APP) for executing the method for disconnecting the different networks under the private network provided by this embodiment is started, the method is suitable for the scenario that the program of the method for disconnecting the different networks under the private network provided by this embodiment is not started currently, and when the program is clicked and started, the method for disconnecting the different networks under the private network provided by this embodiment is automatically executed.
After the method for disconnecting the different networks under the private network provided by this embodiment is automatically executed, an interface is also provided for the user to quit the method for disconnecting the different networks under the private network provided by this embodiment, for example, a stop button is provided in the interface, and after the user can start the program for executing the method for disconnecting the different networks under the private network provided by this embodiment, the user can click the button at any time to stop the execution of the method for disconnecting the different networks under the private network provided by this embodiment.
For the solution that determines that the restart interface is triggered, the program adapted to execute the method for disconnecting based on different networks under the private network provided in this embodiment is already started, but in the case that the method for disconnecting based on different networks under the private network provided in this embodiment is stopped from being executed, at this time, after the user clicks the restart button on the program interface, the method for disconnecting based on different networks under the private network provided in this embodiment is executed.
After re-executing the method for disconnecting based on the private network, the user may also click the button at any time to stop executing the method for disconnecting based on the private network.
Therefore, the process is exited after determining that the program corresponding to the method for disconnecting the different network based on the private network is started, or when detecting that the shutdown interface is triggered after determining that the restart interface is triggered.
And S102, determining whether the different network change occurs.
The change of the different network is an IP (Internet Protocol) address change of a network interface.
The network protocol IP address of the network interface is changed for many reasons, for example, the connected network cable is disconnected, or the network is moved out of the wlan, or the hardware fails.
In actual implementation, if a NetworkChange class causes a NetworkAddressChanged event, it is determined that a heterogeneous network change occurs.
And S103, if the different networks change, executing a corresponding processing scheme to disconnect the network.
The processing scheme may be network disconnection, shutdown, or other schemes for disconnecting the network.
The specific scheme can be set by the user.
The specific implementation manner of the step is as follows: and if the different network changes, determining an event processing program, and executing a corresponding processing scheme through the event processing program to disconnect the network.
Wherein the event handler is associated with a NetworkAddressChangedEventHandler delegate.
Specifically, if the processing scheme is network disconnection, when a heterogeneous network change occurs, the corresponding network card is determined through Win32_ network adapter, and the network card is disabled.
And if the processing scheme is shutdown, executing the CMD to perform shutdown operation when the different network is changed.
In addition, for the convenience of subsequent statistical analysis, information for executing the corresponding processing scheme is recorded in a log after each execution of S103.
The method for disconnecting the different network under the private network provided by the embodiment utilizes a program means to immediately execute disconnection or shutdown processing in less than 500 milliseconds according to a set program when monitoring network abnormality (such as network IP change, Internet access monitoring and the like) occurs in the private network or the local area network. The method has the advantages of achieving safety protection of the private network and reducing serious influences caused by network cable disorderly plugging, network error change and the like.
Example two
1. After the application corresponding to the method for disconnecting the different networks based on the private network provided by the embodiment is started, the method for disconnecting the different networks based on the private network provided by the embodiment is automatically started for monitoring (for example, system API network monitoring).
Meanwhile, a human-computer interaction interface (such as an interface) is provided for a user, the user can perform stop or restart monitoring through the interface, and a different network post-processing mode (such as network disconnection and power off) can be selected through configuration.
Specifically, network change in a network frame is adopted to realize network monitoring.
The NetworkChange class provides an address change notification that notifies whether a network change (e.g., changing an interface address) has occurred by raising a NetworkAddressChanged event.
Network changes occur due to a variety of reasons, such as disconnected network cables, removed wireless local area networks or hardware failures.
2. And if no different network change is found, continuing monitoring. If the change of the different network is found, if a notification sent when the IP address of a network interface (also called a network card or a network adapter) is changed is received, the system Win32_ NetworkAdap finds the corresponding network card, and the forbidden operation is carried out, so that the network disconnection is realized. And if shutdown is configured, executing the CMD to perform shutdown operation.
In addition, if a notification is received, the application's event handler, which is one or more methods of performing the application-specific tasks that each raise an event, must also be determined. When a NetworkChange object triggers a NetworkAddressChanged event, a networkaddresschangeeventlhandler delegate is added to the event, and the networkaddresschangeeventlhandler delegate is associated with the event handler.
3. After operation processing, the log is recorded, so that the operator can track the log conveniently.
According to the method provided by the invention, through real-time monitoring of the network, when the occurrence of the change of the different network is found, the corresponding processing scheme is executed to disconnect the network, so that the risk caused by illegal external connection is reduced, the safety protection of the private network is realized, and the serious influence caused by the network cable disorderly plugging, the network error change and the like is reduced.
EXAMPLE III
Fig. 1 shows a method for multi-line parallel monitoring based on intra-and inter-network isolation, which includes:
s101, constructing a multi-line parallel monitoring unit to monitor a network in real time, wherein the multi-line parallel monitoring unit monitors the change of a network protocol IP address of a network interface, the real-time flow of a network card and the state of a network icon;
s102, if the change of the IP address of the network protocol is detected, or the real-time flow fluctuation of the network card violates a preset flow model, or the network icon changes, the change of the network connection is judged;
and S103, if the network connection is judged to be changed, executing corresponding safety operation.
Further, the step of further improving the network protocol IP address of the monitoring network interface in S101 further includes:
s111, monitoring the network in real time, wherein the network is monitored in real time by adopting the networkChange in the network frame;
s112, determining whether a different network change occurs, wherein the different network change is a change of a network protocol IP address of a network interface; the change of the network protocol IP address of the network interface is caused by the disconnection of a connected network cable, or the removal of the network cable by a wireless local area network, or the failure of hardware; if the NetworkChange class triggers a NetworkAddressChanged event, determining that a different network change occurs;
and S113, if the different network changes, executing a corresponding processing scheme to disconnect the network, wherein the processing scheme is associated with a NetworkAddress changeEventHandler entrustment through an event processing program, and the disconnecting network determines a corresponding network card through Win32_ NetworkAddress and disables the network card.
Further, the monitoring the real-time traffic of the network card in S101 further includes:
s121, monitoring the flow of the computer, acquiring a network card list of the local computer, then dynamically monitoring the flow of all network cards, and displaying, wherein variables in a network monitor class are defined, information of all adapters of the local computer is obtained by calling monitor.
S122, capturing the current network access action of the user, and predicting the flow in advance for a first preset time according to a flow prediction model corresponding to the network action of the user;
and S123, comparing the predicted flow value with the actual flow, and judging that the network connection changes if the difference value exceeds a first threshold value.
Further, the monitoring the status of the network icon in S101 further includes:
s131, monitoring the state of the network icon in real time, acquiring the network icon based on human vision at intervals of a second preset time, and capturing the network icon;
s132, storing the screenshot picture, and comparing the screenshot picture with the screenshot picture before and after to judge whether the screenshot picture is consistent;
and S133, if the difference value of the screenshot pictures exceeds a second threshold value, judging that the network connection changes.
Still further, the step 102 further comprises: if any monitoring finds that the network connection is changed, S103 is immediately executed.
Further, the executing the corresponding security operation in step 103 further includes: shut down, disable the network card, or connect the network to the virtual machine.
Furthermore, if the corresponding safety operation is executed, the power-off is performed; the S103 further includes: and if the different network changes, executing the CMD to perform shutdown operation.
Further, after S103, the method further includes: and recording the information for executing the corresponding processing scheme into a log.
Further, the S101 further includes:
determining that a program corresponding to the method for disconnecting the different networks based on the private network is started; alternatively, the first and second electrodes may be,
determining that a restart interface is triggered.
Further, after determining that the program corresponding to the method for disconnecting the different networks based on the private network is started, or after determining that the restart interface is triggered, the method further includes:
and when the shutdown interface is detected to be triggered, the process is exited.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (10)
1. A multiline parallel monitoring method based on internal and external network isolation is characterized by comprising the following steps:
s101, constructing a multi-line parallel monitoring unit to monitor a network in real time, wherein the multi-line parallel monitoring unit monitors the change of a network protocol IP address of a network interface, the real-time flow of a network card and the state of a network icon;
s102, if the change of the IP address of the network protocol is detected, or the real-time flow fluctuation of the network card violates a preset flow model, or the network icon changes, the change of the network connection is judged;
and S103, if the network connection is judged to be changed, executing corresponding safety operation.
2. The method for multi-line parallel monitoring based on intranet and extranet isolation as claimed in claim 1, wherein the improvement of the network protocol IP address of the monitoring network interface in S101 further comprises:
s111, monitoring the network in real time, wherein the network is monitored in real time by adopting the networkChange in the network frame;
s112, determining whether a different network change occurs, wherein the different network change is a change of a network protocol IP address of a network interface; the change of the network protocol IP address of the network interface is caused by the disconnection of a connected network cable, or the removal of the network cable by a wireless local area network, or the failure of hardware; if the NetworkChange class triggers a NetworkAddressChanged event, determining that a different network change occurs;
and S113, if the different network changes, executing a corresponding processing scheme to disconnect the network, wherein the processing scheme is associated with a NetworkAddress changeEventHandler entrustment through an event processing program, and the disconnecting network determines a corresponding network card through Win32_ NetworkAddress and disables the network card.
3. The method for multi-line parallel monitoring based on internal and external network isolation according to claim 2, wherein the monitoring of the real-time traffic of the network card in S101 further comprises:
s121, monitoring the flow of the computer, acquiring a network card list of the local computer, then dynamically monitoring the flow of all network cards, and displaying, wherein variables in a network monitor class are defined, information of all adapters of the local computer is obtained by calling monitor.
S122, capturing the current network access action of the user, and predicting the flow in advance for a first preset time according to a flow prediction model corresponding to the network action of the user;
and S123, comparing the predicted flow value with the actual flow, and judging that the network connection changes if the difference value exceeds a first threshold value.
4. The method for multi-line parallel monitoring based on intranet and extranet isolation as claimed in claim 3, wherein the monitoring the network icon status in S101 further comprises:
s131, monitoring the state of the network icon in real time, acquiring the network icon based on human vision at intervals of a second preset time, and capturing the network icon;
s132, storing the screenshot picture, and comparing the screenshot picture with the screenshot picture before and after to judge whether the screenshot picture is consistent;
and S133, if the difference value of the screenshot pictures exceeds a second threshold value, judging that the network connection changes.
5. The method for multi-line parallel monitoring based on intranet and extranet isolation as claimed in claim 3, wherein the step 102 further comprises: if any monitoring finds that the network connection is changed, S103 is immediately executed.
6. The method for multi-line parallel monitoring based on intranet and extranet isolation as claimed in claim 4, wherein the step 103 of executing the corresponding security operation further comprises: shut down, disable the network card, or connect the network to the virtual machine.
7. The method for multi-line parallel monitoring based on internal and external network isolation according to claim 5, wherein if the corresponding security operation is executed, the shutdown is performed; the S103 further includes: and if the different network changes, executing the CMD to perform shutdown operation.
8. The method for multiline parallel monitoring based on internal and external network isolation according to any one of claims 1 to 7, wherein after S103, further comprising: and recording the information for executing the corresponding processing scheme into a log.
9. The method according to any one of claims 1 to 7, wherein the step S101 further comprises:
determining that a program corresponding to the method for disconnecting the different networks based on the private network is started; alternatively, the first and second electrodes may be,
determining that a restart interface is triggered.
10. The method according to claim 9, wherein after determining that the program corresponding to the method for disconnecting the heterogeneous network based on the private network is started or after determining that the restart interface is triggered, the method further includes:
and when the shutdown interface is detected to be triggered, the process is exited.
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| CN202010063529.3A CN111277593A (en) | 2020-01-20 | 2020-01-20 | Multi-line parallel monitoring method based on internal and external network isolation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114070622A (en) * | 2021-11-16 | 2022-02-18 | 北京宏达隆和科技有限公司 | Micro-isolation system based on network port security |
| CN115222567A (en) * | 2022-09-20 | 2022-10-21 | 北京润尼尔网络科技有限公司 | VR resource and equipment management system |
-
2020
- 2020-01-20 CN CN202010063529.3A patent/CN111277593A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114070622A (en) * | 2021-11-16 | 2022-02-18 | 北京宏达隆和科技有限公司 | Micro-isolation system based on network port security |
| CN114070622B (en) * | 2021-11-16 | 2024-02-09 | 北京宏达隆和科技有限公司 | Micro-isolation system based on network port security |
| CN115222567A (en) * | 2022-09-20 | 2022-10-21 | 北京润尼尔网络科技有限公司 | VR resource and equipment management system |
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Application publication date: 20200612 |