CN115865928A - External connection system, data transmission method, computer device and storage medium - Google Patents
External connection system, data transmission method, computer device and storage medium Download PDFInfo
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Abstract
The invention relates to the field of information transmission, and discloses an external connection system, a data transmission method, computer equipment and a storage medium, wherein the external connection system comprises: the system comprises a load balancing module and an external server cluster; the load balancing module is used for sending the transmission data to the external connection servers in the external connection server cluster according to load balancing configuration when receiving the transmission data from the core server; and the external connection server cluster is used for storing the transmission data from the core server and sending the requested data to the external connection mechanism through the reverse proxy when receiving the data request of the external connection mechanism. So that all data that needs to be transferred to the extranet structure can be transferred from the extranet system without applying for security exceptions and setting up firewalls.
Description
Technical Field
The present invention relates to the field of information transmission, and in particular, to an external connection system, a data transmission method, a computer device, and a storage medium.
Background
In the field of bank supervision and delivery, various delivery applications are based on a financial metropolitan area network special line and communicate with supervision agencies such as a bank, a bank administration and the like. Because of the bank network security standard, only the application in the private line external connection area can be directly connected with the monitoring mechanism, and most of the servers reporting the application are in the production core area and cannot be directly connected with the external connection.
The application latitude can be reported, the safety exception can be applied, and the application latitude can be directly communicated with the outside only after being examined and approved by leaders at all levels and safety risk measures are made.
However, the report application is more, batch application cannot be performed, the security exception aging is only one year, follow-up frequent application exceptions are still required, the workload of each level of approval personnel is greatly increased, and the direct connection of the core area still has certain potential safety hazards, so that the problem cannot be fundamentally solved.
Disclosure of Invention
The application provides an external connection system, a data transmission method, computer equipment and a storage medium which can be applied to financial science and technology.
In a first aspect, the present application provides an external connection system comprising: the system comprises a load balancing module and an external server cluster;
the load balancing module is used for sending the transmission data to an external connection server in the external connection server cluster according to load balancing configuration when receiving the transmission data from a core server or an external connection mechanism;
the external connection server cluster comprises storage data, and when the storage data are received from a core server or an external connection mechanism, the transmission data are sent to a corresponding target server through a reverse proxy.
Further, the load balancing module comprises a plurality of F5 load balancers;
and the F5 load balancers bind the external servers into a plurality of external server clusters and transmit the transmission data to the corresponding external servers according to load balance configuration.
Further, the load balancing module further comprises a global load balancing module;
the global load balancing module is used for binding a plurality of F5 load balancers and transmitting the transmission data to the corresponding F5 load balancers according to global load balancing configuration.
Further, the cluster of external connection servers includes a plurality of nginnx servers, and the nginnx servers serve as external connection servers and send data to the external connection mechanism or the core server through a reverse proxy.
In a second aspect, the present application provides an external connection data transmission method, which is applied to the external connection system, and the method includes:
when receiving transmission data from an external connection mechanism or a core server, selecting an external connection server from an external connection server cluster through load balancing, and transmitting the transmission data to the corresponding external connection server;
and forwarding the transmission data to a corresponding core server or a corresponding external connection mechanism through the external connection server.
Further, the selecting, through load balancing, an external connection server from the external connection server cluster includes:
and binding a plurality of the external servers through an F5 load balancer to form the external server cluster, and selecting the external servers from the external server cluster through the F5 load balancer when receiving data from a core server.
Further, selecting an external connection server from the external connection server cluster through load balancing, and the method also comprises the following steps;
and transmitting the transmission data to the corresponding F5 load balancer according to the global load balancing configuration through a global load balancing module.
Further, the external connection server sends the requested data to the external connection mechanism in a reverse proxy mode.
In a third aspect, the present application also provides a computer device comprising a processor and a memory, said memory storing a computer program which, when run on said processor, performs the further method of external data transfer.
In a fourth aspect, the present application also provides a readable storage medium, which stores a computer program that, when run on a processor, performs the further method of external data transfer.
The invention discloses an external connection system, a data transmission method, computer equipment and a storage medium, wherein the external connection system comprises: the system comprises a load balancing module and an external server cluster; the load balancing module is used for sending the transmission data to the external connection servers in the external connection server cluster according to load balancing configuration when receiving the transmission data from the core server; and the external connection server cluster is used for storing the transmission data from the core server and sending the requested data to the external connection mechanism through the reverse proxy when receiving the data request of the external connection mechanism. The data which needs to be transmitted to the external connection structure can be transmitted from the external connection system without applying security exception and setting a firewall, the availability, expansibility, scalability and security of the system are improved through the load balancing module, the communication risk of the external connection network is greatly reduced, the external connection application can be independently deployed, the traditional vertical shaft development mode is broken through, the multiplexing capability is provided, and the research and development efficiency is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention. Like components are numbered similarly in the various figures.
FIG. 1 is a schematic diagram of an external connection system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an embodiment of an external connection system;
FIG. 3 is a flow chart illustrating an external data transmission method according to an embodiment of the present application;
FIG. 4 is a diagram illustrating a data transmission according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating interaction of contact system information according to an embodiment of the present application;
fig. 6 shows a network environment diagram according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are intended to indicate only specific features, numerals, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the presence of or adding to one or more other features, numerals, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as terms defined in a commonly used dictionary) will be construed to have the same meaning as the contextual meaning in the related art and will not be construed to have an idealized or overly formal meaning unless expressly so defined in various embodiments of the present invention.
For an enterprise, the network environment of the internal core and the external network need to be isolated, so when a bank needs to transmit data to an external organization such as a bank prison, a series of operations need to be performed, for example, a security exception is opened to enable internal data to be sent to the external organization. Which is a security risk.
By providing an external connection system, all data that needs to be transmitted from an internal core network to an external connection mechanism is forwarded through the external connection system.
Specifically, the system is shown in fig. 1 and includes a load balancing module 100 and an external server cluster 200.
The load balancing module 100 is configured to, when receiving transmission data from a core server, send the transmission data to an external server in the external server cluster 200 according to load balancing configuration, and meanwhile ensure load balancing in a system. The load balancing configuration is a configuration set for which server receives data, and the load balancing module 100 uses the configuration to balance the load of each server in the external server cluster 200, so as to ensure the working stability of the whole cluster, and avoid resource waste caused by excessive access of a certain server but no access of other servers.
The external connection system is used for interaction between the core server and an external connection server, for example, some audit data need to be sent to external connection structures such as a pedestrian or a bank prison in a bank, obviously, the audit data are secret data for the inside of the bank, so the data can be stored in an intranet, and the data interaction condition of an internal network and an external network is complex. For example, there may be a case where data is actively sent internally to the outside, a case where data feedback is requested internally to the outside, or a case where data is requested externally to the inside, and these request packets or data packets are inevitably transmitted from the server of the external connection entity to the internal core server, and it may be necessary to perform a connection operation between the server of the external connection entity and the internal core server in accordance with a specific IP. This connection is risky.
In order to avoid risks, the external connection system is used, the external connection servers in the external connection server cluster 200 in the external connection system are used as proxy servers, interaction between the internal core server and the servers of the external connection mechanism is achieved, the internal core server and the servers of the external connection mechanism only interact with the external connection servers, one-time physical isolation is conducted on a network layer, and direct data connection between an internal network and an external network is avoided.
As shown in fig. 2, the load balancing module 100 may include a global load balancing module (GSLB) 110 and a plurality of F5 load balancers 120, where each F5 load balancer binds a plurality of external servers 210 to form an external server cluster 200. The F5 load balancers 120 may not be disposed in one place, but may be disposed in different rooms, and the external servers 210 in each room are bound to the F5 load balancers 120 to form a plurality of small clusters.
The global load balancing module 110 is configured to bind each F5 load balancer 120, and is configured to balance the load of the F5 load balancer, when a core server transmits data to an external connection server cluster, the global load balancing module 110 first processes the data, and sends the data to the corresponding F5 load balancer according to configurations such as a load balancing policy, a server weight, and a scheduling algorithm configured in the server, and then the F5 load balancer 120 transmits the data to a suitable external connection server 210.
The global load balancing module 110 determines where the server provides the service by comprehensively determining the server and the link, so as to ensure the quality of service of the remote server group, which is the core of the entire system, and the specific load balancing mode thereof may be implemented based on DNS, redirection, or routing protocol.
The above-described extranet server 210 may be a Nginx server, which is a high-performance HTTP and reverse proxy server.
The reverse proxy server is located between the user and the target server, but for the user, the reverse proxy server is equivalent to the target server, that is, the user can obtain the resources of the target server by directly accessing the reverse proxy server. Meanwhile, the user does not need to know the address of the target server and does not need to make any setting at the user side. The reverse proxy server can be generally used for Web acceleration, namely, the reverse proxy is used as a front-end processor of the Web server to reduce the load of the network and the server and improve the access efficiency. For the working environment such as bank, the data required to be transmitted to the external connection mechanism is usually requested by the external connection mechanism actively, so that the external connection server 210 can enable the external connection mechanism to interact only with the external connection server 210 by using the Nginx server, the interaction between the core server and the external connection mechanism is avoided, and the interaction between the external network and the core network is cut off from the network link level.
And the reverse proxy function server can also be reasonably combined with software for refusing external access to the firewall, so that a firewall system which not only contains an internal core network, but also can issue Web information to the outside is constructed, and the external connection system is safer and more multifunctional.
Obviously, when an internal core server is to interact with an external connection mechanism, each external connection server in the external connection system is used as an access terminal of the core server, and the core server does not need to directly interact with the external connection mechanism.
Under the above-mentioned external connection system structure, when external connection mechanism needs to carry out data interaction with the intranet, perhaps when the intranet needs to carry out data interaction with the external connection mechanism of extranet, all can interact through external connection system, and then guarantee the security of data.
In addition, the external system of the application can comprise a plurality of layers of load balancing, and each F5 load balancer is scheduled through the global load balancing module, so that the whole system has better stability.
The embodiment of the present application further provides an external connection data transmission method to ensure the security of data in the interactive process, as shown in fig. 3, including the following steps:
and S100, when receiving transmission data from an external connection mechanism or a core server, selecting an external connection server from an external connection server cluster through load balance, and transmitting the transmission data to the corresponding external connection server.
The method for transmitting the external connection data is applied to a use scene in which an intranet server and an extranet server interact, and the method is operated in the external connection system in the embodiment, wherein the transmission data refers to data packets generated in a network interaction process, and the data packets may be specific data or request packets, for example, request packets required when a TCP handshake connection is established, or data packets transmitted when transmission is performed after the connection is established.
Some of the core servers need to transmit data to the outside, such as account data and the like which need to be checked by an external organization, and the data cannot be directly transmitted with an external network link and transmitted through an external server cluster. Generally, a complete data transmission interaction will send a data transmission request first, and then perform specific data transmission after being granted by a requesting party.
Therefore, when data from the core server is transmitted to the external connection system, the core server sends a request packet to the external connection system, the request packet firstly determines which server the request should go through load balancing, for example, ten servers in a server cluster, wherein the load of one server is lower than that of the other nine servers, and the transmitted data is transmitted to the server with the low load.
After the request packet arrives at the external connection server, the external connection server starts its own proxy work, and it should be noted that although the request packet is requested to the external organization, the external connection server serves as a reverse proxy server and can establish a connection with the core server according to the request packet.
In addition, because the load balancing module may include a global load balancing module to serve as the F5 load balancer, the F5 load balancer receives the schedule of the global load balancing module, and each F5 load balancer binds a certain number of external servers to form a small server cluster. Therefore, when the data of the core server is transmitted to the external connection system, a proper server cluster is selected from the server clusters bound by all the F5 load balancers through the global load balancing module, after the cluster is selected, the data is transmitted to the corresponding F5 load balancer, then the F5 load balancer performs load balancing on the external connection server in the cluster, and the transmitted data is transmitted to the corresponding external connection server.
The global load balancing module and the load balancing strategy of the F5 load balancer can carry out load balancing according to preset server weights, data scheduling methods, data proxy configuration and the like, and the whole server cluster is divided into a plurality of small server clusters due to the existence of the F5 load balancer as an intermediate layer, so that the whole external connection service system is built more flexibly, and the expansibility of the servers is increased. For example, an F5 load balancer may be responsible for load balancing of the inline servers in a room. If a server needs to be added, the server can be directly added into a machine room where the F5 load balancer is located, if a plurality of servers need to be added, a new machine room can be established at any position, and a new F5 load balancer is added into the machine room, so that the expansion operation of the plurality of servers can be completed.
It can be understood that the machine rooms for which the F5 load balancers are responsible may not be located in the same place, for example, the servers in the external connection system may be located in different areas of the same city, the extension of the servers in the whole system is not limited by regions, and the stability of the whole system is enhanced. For example, when a disaster occurs at a certain place in the city, the machine room cannot work normally, and the machine rooms located in other areas can work continuously, so that the whole system can work continuously, and a working mode of multiple lives in the same city is realized.
According to the method and the system, through double-layer scheduling of the global load balancing module and the F5 load balancer, the load balance of each external server in the system is increased, and meanwhile, the stability and the expansibility of the whole system are also increased. So that the system can withstand larger disasters and is easy to expand.
And step S200, the transmission data is forwarded to the corresponding core server or the corresponding external connection mechanism through the external connection server.
In the above steps, the request packet from the core server arrives at the external connection server, and the external connection server may establish a connection with the core server according to the request packet, and then forward the request packet to the external connection mechanism. And the external connection mechanism carries out corresponding processing according to the request packet.
It can be understood that, when the external connection mechanism sends the feedback packet, the feedback packet also reaches the external connection system, and goes through the operation in step S100 again, and the external connection server forwards the feedback packet to the core server. However, the feedback packet is sent to the core server by the external connection server from the core server, and the core server does not directly communicate with the external connection mechanism at xiao Hu.
Furthermore, when the data packets pass through the external connection server, a series of troubleshooting operations can be performed, malicious commands and the like are prevented from being carried in the data packets, the safety of an intranet is guaranteed, meanwhile, the data pass through the external connection server, and a firewall can be arranged on the external connection server to guarantee that the data packets are not easy to hijack, and the safety of the whole data path is guaranteed.
The extranet mechanism, i.e., the mechanism in a different network environment from the core server in the present embodiment, may be considered as a server of a different company. When some data in the core server is required by these extranet organizations, an application needs to be made through the extranet system. It is understood that the request packet of these applications is also forwarded to the core server through step S100, and then the core server transmits the data to the external server in the external system. Therefore, in the process, the core server only needs to search according to the request type and the request content of the external connection mechanism, so that corresponding data is obtained, and then the data is transmitted to the external connection server and forwarded to the external connection mechanism by the external connection server.
Therefore, when the external mechanism requests data, the external mechanism does not directly interact with the core server or establish data connection and other things with security risks, and the external server is an Nginx server, and the data of the external server is prevented from being further forwarded to the core server in a reverse proxy mode.
As shown in fig. 4, the whole data transmission form is a data transmission form, in which a data transmission process is shown when a core server requests data from an external connection mechanism, the data of the core server is transmitted to the external connection mechanism through an external connection system, and the external connection mechanism processes the data according to the request and returns corresponding transmission data. As can be seen from the figure, the request of the external connection mechanism does not enter the core server, and the core server does not have direct data interaction with the external connection mechanism, so that the whole process is safe for the core server.
The more specific data interaction process is shown in fig. 5, which shows a process in which an external connection mechanism requests a certain data from a core server, where the external connection mechanism first sends a data request, and the data request is processed in an external connection system, that is, after load balancing, a specific server is selected to perform the next proxy operation. The external connection server forwards the request to the core server in a reverse proxy mode, and the core server performs internal processing after sending data to the external connection system, such as data request, query of corresponding data, or feedback of corresponding handshake information. The data packets are sent out from the core server and enter the external connection system, and the external connection system finds out a proper external connection server for the data in a load balancing mode to process the data. And the external connection server forwards the data to the external connection mechanism to complete the whole data interaction process.
Similarly, the interaction scenario in fig. 4 is similar to the interaction scenario in fig. 5, and in the whole process, no additional security operation needs to be performed in the external connection mechanism or the core server, which shows that the external connection mechanism or the core server interacts with the external connection system, and the external connection system itself is an interaction terminal of the external connection mechanism or the core server. Different from a common point-to-point interaction mode, the problem in data interaction is solved by adding an external connection system.
As shown in fig. 6, for the network environment of the whole interaction scenario, for the core server and the external connection mechanism, after the data input into the external connection system is operated by the load balancing module, and inputting the data into each specific external connection server, and then forwarding the data to a core server or an external connection mechanism to realize one-time complete communication.
In addition, the database in the extranet system can also be used to store which data needs to be transmitted to the extranet organization.
For example, for a bank, the external connection mechanism is a central people bank or a bank prison and other control mechanisms, so that data to be reported and transmitted are fixed, the data can be stored in the external connection system from a core database, when the external connection mechanism needs the data, a request message is sent, at the moment, the external connection system can search in the system, inquire corresponding data, and then the external connection system directly feeds back the data. When the corresponding data can not be found by the external connection system, the request of the external connection mechanism is forwarded to the core server, and the core server provides the corresponding data.
The utility model provides an outer antithetical couplet system and outer antithetical couplet data transmission mode, through setting up outer antithetical couplet system, when making carry out data interaction between core server and the outer antithetical couplet mechanism, can avoid direct interaction between them, there are global load balance and F5 load balancer in the outer antithetical couplet system simultaneously, make entire system easily expand and maintain, can support many lives in the same city, guarantee entire system's stability, make when some outer antithetical couplet server goes wrong, entire system still can normal operating.
The present application also provides a computer device comprising a processor and a memory, said memory storing a computer program which, when run on said processor, performs the further method of external data transfer.
The computer device may be a server, or may be a computing device such as a central control computer that controls the server.
The present application also provides a readable storage medium, which stores a computer program that, when run on a processor, performs the further method of external data transfer.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part of the technical solution that contributes to the prior art in essence can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. An external link system, comprising: the system comprises a load balancing module and an external server cluster;
the load balancing module is used for sending the transmission data to an external connection server in the external connection server cluster according to load balancing configuration when receiving the transmission data from a core server or an external connection mechanism;
and the external connection server cluster is used for storing data and sending the transmission data to the corresponding target server through a reverse proxy when receiving the data from the core server or the external connection mechanism.
2. The extranet system of claim 1, wherein the load balancing module includes a plurality of F5 load balancers;
the F5 load balancers are used for binding the external servers into a plurality of external server clusters and transmitting the transmission data to the corresponding external servers according to load balance configuration.
3. The extranet system of claim 2, wherein the load balancing module further comprises a global load balancing module;
the global load balancing module is used for binding with the plurality of F5 load balancers and transmitting the transmission data to the corresponding F5 load balancers according to global load balancing configuration.
4. The extranet system of claim 1, wherein the cluster of extranet servers comprises a plurality of Nginx servers that act as the extranet servers to send data to the extranet or the core servers through a reverse proxy.
5. An external data transmission method applied to the external system according to any one of claims 1 to 4, the method comprising:
when receiving transmission data from an external connection mechanism or a core server, selecting an external connection server from an external connection server cluster through load balancing, and transmitting the transmission data to the corresponding external connection server;
and forwarding the transmission data to a corresponding core server or a corresponding external connection mechanism through the external connection server.
6. The method of claim 5, wherein selecting an extranet server from a cluster of extranet servers through load balancing comprises:
and binding a plurality of the external servers through an F5 load balancer to form the external server cluster, and selecting the external server from the external server cluster through the F5 load balancer when receiving data from a core server.
7. The method of claim 6, wherein selecting an extranet server from a cluster of extranet servers by load balancing further comprises;
and transmitting the transmission data to the corresponding F5 load balancer according to the global load balancing configuration through a global load balancing module.
8. The method of claim 5, wherein the extranet server sends the requested data to the extranet authority by means of a reverse proxy.
9. A computer arrangement comprising a processor and a memory, the memory storing a computer program which, when run on the processor, performs the method of external data transfer of any of claims 5 to 7.
10. A readable storage medium, characterized in that it stores a computer program which, when run on a processor, performs the method of external data transfer of any of claims 5 to 7.
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| CN202211550932.4A CN115865928A (en) | 2022-12-05 | 2022-12-05 | External connection system, data transmission method, computer device and storage medium |
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| CN202211550932.4A CN115865928A (en) | 2022-12-05 | 2022-12-05 | External connection system, data transmission method, computer device and storage medium |
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