CN115118701A - Data transmission method, device, system, equipment and storage medium - Google Patents
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Abstract
The application relates to a data transmission method, a device, a system, equipment and a storage medium, wherein the method comprises the steps that a private network domain name resolution device acquires a private network service request from a service terminal; extracting a private network domain name in the private network service request; inquiring a domain name resolution result of the private network pointed by the domain name of the private network; and returning the domain name resolution result of the private network to the service terminal. The private network domain name resolution equipment can find the address of the proxy outbound server for connecting the private network and the public network based on the private network domain name in the service request, so that even if the service request is the private network service request from the private network, the private network service request can be transmitted to the public network through the proxy outbound server, and the service in the private network is compatible with the service in the public network.
Description
Technical Field
The present application relates to the field of computers, and in particular, to a data transmission method, apparatus, system, device, and storage medium.
Background
With the updated development of Internet Protocol TV (IPTV) technology, Internet television is becoming more and more popular in people's life. IPTV is an information network audio-visual program service with quality service guarantee developed for a television terminal through an IPTV private network based on a fixed communication network.
In recent years, various network operators continuously expand IPTV services, but since most IPTV networks of the IPTV services are private networks and cannot be accessed through a public network, the IPTV services cannot be compatible with services that need to access the public network.
Disclosure of Invention
The application provides a data transmission method, a device, a system, equipment and a storage medium, which are used for solving the problem of compatibility of a private network and a public network.
In a first aspect, a data transmission method is provided, which is applied to a private network domain name resolution device, and includes:
acquiring a private network service request from a service terminal;
extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
inquiring a private network domain name resolution result pointed by the private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outgoing network server, and the proxy outgoing network server is used for transmitting the service request from a private network to a public network;
and returning the domain name resolution result of the private network to the service terminal.
Optionally, querying a private network domain name resolution result pointed by the private network domain name includes:
inquiring whether the address of the proxy outbound server is stored in a cache;
if the address of the proxy outbound server is not stored, forwarding the private network service request to upper-level domain name resolution equipment;
and receiving the private network domain name resolution result returned by the upper-level domain name resolution equipment in response to the private network service request.
Optionally, querying a private network domain name resolution result pointed by the private network domain name includes:
acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of the proxy outbound server;
and querying the domain name resolution configuration file by adopting the private network domain name to obtain a private network domain name resolution result.
Optionally, obtaining the domain name resolution configuration file includes:
and acquiring the domain name resolution configuration file from the upper-level domain name resolution equipment.
Optionally, the domain name resolution configuration file includes a port number of the proxy outbound server, and a port corresponding to the port number supports access to the proxy outbound server;
after returning the domain name resolution result of the private network to the service terminal, the method further comprises the following steps:
and returning the port number to the service terminal.
In a second aspect, a data transmission method is provided, which is applied to a service terminal, and includes:
generating an original service request;
acquiring a public network domain name in the original service request;
determining a private network domain name corresponding to the public network domain name;
and generating and sending a private network service request corresponding to the private network domain name.
Optionally, before generating and sending the private network service request corresponding to the private network domain name, the method further includes:
acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of the proxy outbound server;
querying the domain name resolution configuration file by adopting the private network domain name to obtain a private network domain name resolution result indicating the address of the proxy outbound server;
sending a private network service request corresponding to the private network domain name, comprising:
and sending the private network service request to the proxy outbound server.
Optionally, the domain name resolution configuration file includes a port number of the proxy outbound server, and a port corresponding to the port number supports access to the proxy outbound server;
sending the private network service request to the proxy outbound server, including:
and updating the port number of the indicated receiver in the private network service request into the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
Optionally, sending a private network service request corresponding to the private network domain name includes:
sending the private network service request to a private network domain name resolution device;
receiving a private network domain name resolution result returned by the private network domain name resolution equipment in response to the private network service request, wherein the private network domain name resolution result indicates the address of the proxy outbound server;
and sending the private network service request to the proxy outbound server based on the address of the proxy outbound server.
Optionally, sending the private network service request to the proxy outbound server includes:
and if the port number of the proxy outbound server is received, updating the port number of the indication receiver in the private network service request to the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
In a third aspect, a data transmission method is provided, which is applied to a proxy outbound server, and includes:
receiving a private network service request from a service terminal;
extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
acquiring a public network domain name corresponding to the private network domain name;
and generating and sending a public network service request corresponding to the public network domain name.
In a fourth aspect, a data transmission method is provided, including:
a service terminal generates an original service request;
the service terminal acquires the public network domain name in the original service request;
the service terminal determines a private network domain name corresponding to the public network domain name;
the service terminal generates a private network service request corresponding to the private network domain name;
a service terminal sends a private network service request corresponding to a private network domain name resolution device;
the private network domain name resolution equipment acquires a private network service request from the service terminal;
a private network domain name resolution device extracts a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the private network domain name resolution equipment queries a private network domain name resolution result pointed by the private network domain name, the private network domain name resolution result indicates an address of a proxy outbound server, and the proxy outbound server is used for transmitting the service request from the private network to a public network;
the private network domain name resolution equipment returns the private network domain name resolution result to the service terminal;
the service terminal receives the private network domain name resolution result from the private network domain name resolution equipment and sends the private network service request to a proxy outbound server based on the private network domain name resolution result;
the proxy outbound server receives the private network service request from the service terminal;
the proxy outbound server extracts a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the proxy outbound server acquires a public network domain name corresponding to the private network domain name;
and the proxy outbound server generates and sends a public network service request corresponding to the public network domain name.
In a fifth aspect, a data transmission apparatus is provided, which is applied to a private network domain name resolution device, and includes:
the first acquisition module is used for acquiring a private network service request from a service terminal;
the first extraction module is used for extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the inquiry module is used for inquiring a private network domain name resolution result pointed by the private network domain name, the private network domain name resolution result indicates the address of a proxy outbound server, and the proxy outbound server is used for transmitting the service request from the private network to a public network;
and the return module is used for returning the domain name resolution result of the private network to the service terminal.
In a sixth aspect, a data transmission apparatus is provided, which is applied to a service terminal, and includes:
the generating module is used for generating an original service request;
the second obtaining module is used for obtaining the public network domain name in the original service request;
the determining module is used for determining a private network domain name corresponding to the public network domain name;
and the first processing module is used for generating and sending the private network service request corresponding to the private network domain name.
A seventh aspect provides a data transmission apparatus, applied to a proxy outbound server, including:
the receiving module is used for receiving a private network service request from a service terminal;
the second extraction module is used for extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
a third obtaining module, configured to obtain a public network domain name corresponding to the private network domain name;
and the second processing module is used for generating and sending the public network service request corresponding to the public network domain name.
In an eighth aspect, there is provided a data transmission system comprising:
the system comprises a service terminal, a private network domain name resolution device and a proxy outbound server;
the service terminal is used for generating an original service request; acquiring a public network domain name in the original service request; determining a private network domain name corresponding to the public network domain name; generating and sending a private network service request corresponding to the private network domain name;
the private network domain name resolution equipment is used for acquiring a private network service request from the service terminal; extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal; inquiring a private network domain name resolution result pointed by the private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outgoing network server, and the proxy outgoing network server is used for transmitting the service request from a private network to a public network; returning the domain name resolution result of the private network to the service terminal;
the proxy outbound server is used for receiving a private network service request from the service terminal; extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal; acquiring a public network domain name corresponding to the private network domain name; and generating and sending a public network service request corresponding to the public network domain name.
In a ninth aspect, there is provided an electronic device comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus; the memory for storing a computer program; the processor is configured to execute the program stored in the memory to implement the data transmission method of the first aspect, the second aspect, or the third aspect.
A tenth aspect provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the data transmission method of the first, second or third aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: in the technical scheme provided by this embodiment, a private network domain name resolution device acquires a private network service request from a service terminal; extracting a private network domain name in the private network service request; inquiring a private network domain name resolution result pointed by the private network domain name; and returning the domain name resolution result of the private network to the service terminal. The private network domain name resolution equipment can find the address of the proxy outbound server for connecting the private network and the public network based on the private network domain name in the service request, so that even if the service request is the private network service request from the private network, the private network service request can be transmitted to the public network through the proxy outbound server, and the service in the private network is compatible with the service in the public network.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic flowchart of a data transmission method in an embodiment of the present application;
fig. 2 is a schematic flow chart of a data transmission method in an embodiment of the present application;
fig. 3 is a schematic flow chart of a data transmission method in the embodiment of the present application;
fig. 4 is a schematic flowchart of a data transmission method in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
FIG. 6 is a schematic diagram of another structure of a data transmission apparatus according to an embodiment of the present application;
FIG. 7 is a schematic diagram of another structure of a data transmission apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a data transmission system in an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The embodiment of the present application provides a data transmission method, which may be applied to a private network domain name resolution device, as shown in fig. 1, and the method may include the following steps:
102, extracting a private network domain name in the service request, wherein the private network domain name is generated based on a public network domain name in an original service request in a service terminal;
103, inquiring a private network domain name resolution result pointed by the private network domain name, wherein the private network domain name resolution result indicates an address of a proxy network-out server, and the proxy network-out server is used for transmitting a service request from the private network to a public network;
and step 104, returning a domain name resolution result of the private network to the service terminal.
The private network service request in this embodiment refers to a request that requires a private network and a public network to request service data. In order to separate the public network flow from the private network flow, the private network domain name resolution equipment can identify the private network service request, the service terminal side updates the domain name of the service request, and the public network domain name is updated to the private network domain name. After the private network domain name resolution equipment acquires the private network service request, the private network domain name resolution result pointed by the private network domain name can be inquired.
In application, the private network Domain Name resolution device may be an operator DNS (Domain Name System) device.
To be well understoodThe operator DNS devices are originally used for the public access links. In the public network access link, for a service request transmitted through an operator network, the operator DNS device can resolve to obtain an address of a service server corresponding to the service request. For example, for a television terminal connected to a carrier network, the television terminal generates a domain namewww.aa.comAfter the service request, the operator DNS device obtains the address of the service server based on the domain name resolution.
When the operator DNS device is used in a private network and private network domain name resolution is implemented, the private network domain name in the private network service request from the service terminal is updated with respect to the public network domain name in the original service request. For example, for IPTV set-top box connected with operator network, the IPTV set-top box generates a message containing the local domain name-www.aa.comAfter the operator DNS obtains the service request, the address of the proxy outbound server is obtained based on the domain name resolution of the private network.
It should be understood that, in this embodiment, although the operator DNS device can be used for private domain name resolution, public domain name resolution can also be performed at the same time, and based on the domain name in the obtained service request, the operator DNS device can distinguish whether private domain name resolution or public domain name resolution is currently performed.
It should be understood that, considering that the operator DNS device is also applied to public domain name resolution in addition to private domain name resolution, the operator DNS device is a device adopting a standard domain name resolution service protocol, and the operator DNS device supports default port numbers at this time, for example, the default port number of the Http protocol specified in the standard domain name resolution service is 80, and the default port number of the Http protocol is 443. That is, taking the Http protocol as an example, the port number in the service request initiated by the service terminal is 80, and the service request can be sent to the outbound proxy server.
When the operator DNS equipment is used as the private network domain name resolution equipment, the implementation process of the operator DNS equipment for inquiring the private network domain name resolution result pointed by the private network domain name is to inquire whether the address of the proxy outbound server is stored in the cache or not; if the address of the proxy outbound server is not stored, forwarding a private network service request to the upper-level domain name resolution equipment; and receiving a private network domain name resolution result returned by the upper-level domain name resolution equipment in response to the private network service request.
It should be understood that when the address of the proxy outbound server is stored in the cache, the address of the proxy outbound server is directly used as the result of the private domain name resolution.
In application, the corresponding relation between the domain name and the private network domain name resolution result is pre-configured in the upper level domain name resolution equipment, so that when the address of the proxy outbound server is not stored in the cache, the private network domain name resolution result can be obtained by recursion to the upper level domain name resolution equipment.
It should be understood that the private network domain name results in the cache of the operator DNS device are actually also from the upper level domain name resolution device. The operator DNS device may request the private network domain name resolution result from the previous domain name resolution device at a fixed time, and certainly, the previous domain name resolution device may also set to actively send the private network domain name resolution result to the operator DNS device at a fixed time according to a need, which is not specifically limited in this embodiment.
In the application, some operators forbid default port numbers from the safety perspective, so the operator DNS devices are no longer suitable for the private network domain name resolution device at this time, and in this case, the private network DNS devices are deployed in the private network, and the private network DNS devices realize the private network domain name resolution.
In a specific embodiment, a domain name resolution configuration file is sent to the private network DNS device by the upper-level domain name resolution device, and the private network DNS device obtains a private network domain name resolution result pointed by the private network domain name based on the domain name resolution configuration file.
In this embodiment, the domain name resolution configuration file includes a port number of the proxy outbound server, and a port corresponding to the port number supports access to the proxy outbound server, so that the private network DNS device needs to return the port number of the proxy outbound server while returning the private network domain name resolution result to the service terminal.
In the technical scheme provided by the embodiment, the private network domain name resolution equipment acquires a private network service request from a service terminal; extracting a private network domain name in the private network service request; inquiring a domain name resolution result of the private network pointed by the domain name of the private network; and returning the domain name resolution result of the private network to the service terminal. The private network domain name resolution equipment can find the address of the proxy outbound server for connecting the private network and the public network based on the private network domain name in the service request, so that even if the service request is the private network service request from the private network, the private network service request can be transmitted to the public network through the proxy outbound server, and the service in the private network is compatible with the service in the public network.
An embodiment of the present application provides a data transmission method, which may be applied to a service terminal, and as shown in fig. 2, the method may include the following steps:
and step 204, generating and sending a private network service request corresponding to the private network domain name.
The service terminal in this embodiment refers to a terminal device that can request a service of a public network only through a private network of an operator. In application, the service terminal includes but is not limited to a set-top box of an IPTV.
In the embodiment, the private network domain name corresponding to the public network domain name can be generated in real time; or a private network domain name corresponding to the public network domain name is generated in advance, and at the moment, after the public network domain name in the original service request is extracted, the private network domain name is determined according to the corresponding relation between the public network domain name and the private network domain name.
When the private network domain name corresponding to the public network domain name is generated in real time, the private network domain name can be generated in a mode of adding a prefix to the public network domain name. In one example, the public network domain name may bewww.aa.comAssuming that the preset prefix is "local-", the generated private network domain name can be local-www.aa.com. It should be understood that, in this case, different public network domain names may use the same prefix, or may use different prefixes to generate private network domain names, which is not specifically limited in this embodiment.
In this embodiment, after the service terminal generates the private network service request corresponding to the private network domain name, the private network service request may be sent to the operator DNS device for implementing the private network domain name resolution device, so that the operator DNS device queries an address of the proxy outbound server to which the private network domain name points; or, the private network service request is sent to a private network DNS device for implementing the private network domain name resolution device, so that the private network DNS device queries an address of a proxy outbound server to which the private network domain name points based on the domain name resolution configuration file.
It should be understood that when the private network service request is sent to the private network DNS device, the service terminal may receive, in addition to the address of the proxy outbound server returned by the private network DNS device, the port number of the proxy outbound server returned by the private network DNS device. Correspondingly, when the service terminal sends a private network service request to the proxy outbound server based on the address of the proxy outbound server, the port number of a receiver in the private network service request is updated based on the port number of the proxy outbound server, and the updated private network service request is sent to the proxy outbound server.
In the application, in consideration of that the operator does not allow the domain name resolution DNS device of the third party to be deployed in the private network of the operator from the security perspective, in this embodiment, the domain name resolution service of the private network is deployed on the service terminal side.
In a specific embodiment, before generating and sending the private network service request corresponding to the private network domain name, the method further includes: acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of a proxy outbound server; and querying a domain name resolution configuration file by adopting a private network domain name to obtain a private network domain name resolution result indicating the address of the proxy outbound server.
In this case, when sending the private network service request corresponding to the private network domain name, the service terminal sends the service request to the proxy outbound server.
In this embodiment, the domain name resolution configuration file may be directly configured to the service terminal by the service party; of course, in consideration of the requirement for convenience of modifying and updating the configuration file, the domain name resolution configuration file may be configured in advance in a device belonging to an operator in the private network, which is not specifically limited in this embodiment.
In the application, the operator still proposes to block the default port number from the security perspective, in order to enable the service request to be still sent to the proxy outbound server from the service terminal, the domain name resolution configuration file further includes the port number of the proxy outbound server, and the port corresponding to the port number supports access to the proxy outbound server. At this time, when the service terminal sends the private network service request to the proxy outbound server, the port number indicating the receiver in the private network service request is updated to the port number of the proxy outbound server, and the updated private network service request is sent to the proxy outbound server.
It should be appreciated that the port number of the receiver is the default port number before the port number of the receiver is updated in the private network service request.
In the technical scheme provided by the embodiment of the application, a service terminal generates an original service request; acquiring a public network domain name in an original service request; determining a private network domain name corresponding to the public network domain name; and generating and sending a private network service request corresponding to the private network domain name. The service terminal updates the public network domain name in the original service request to obtain the private network service request, so that the private network domain name resolution equipment receiving the private network service request can find the address of the proxy outbound server connecting the private network and the public network based on the private network domain name in the private network service request, and even if the service request is the private network service request from the private network, the private network service request can be transmitted to the public network through the proxy outbound server, so that the service in the private network is compatible with the service in the public network.
An embodiment of the present application provides a data transmission method, where the method may apply a proxy outbound server, and as shown in fig. 3, the method may include the following steps:
and step 304, generating and sending a public network service request corresponding to the public network domain name.
It should be understood that the proxy outbound server may directly extract the public network domain name from the private network domain name, or may obtain the public network domain name based on a preset correspondence between the private network domain name and the public network domain name.
Since the public network domain name usually has a certain format, when the public network domain name is directly extracted from the private network domain name, the public network domain name in the private network domain name can be extracted according to the format of the public network domain name. It should be understood that the format of the public network domain name may begin with the "www" character and end with the "com" character.
An embodiment of the present application provides a data transmission method, and as shown in fig. 4, the method may include the following steps:
step 401, a service terminal generates an original service request;
step 402, the service terminal acquires the public network domain name in the original service request;
step 403, the service terminal determines a private network domain name corresponding to the public network domain name;
step 404, the service terminal generates a private network service request corresponding to the private network domain name;
step 405, the service terminal sends a private network service request corresponding to a private network domain name resolution device;
step 406, the private network domain name resolution equipment acquires a private network service request from a service terminal;
step 407, extracting the private network domain name in the private network service request by the private network domain name resolution device, wherein the private network domain name is generated based on the public network domain name in the original service request in the service terminal;
step 408, the private network domain name resolution device queries a private network domain name resolution result pointed by the private network domain name, the private network domain name resolution result indicates an address of a proxy outbound server, and the proxy outbound server is used for transmitting the service request from the private network to the public network;
step 409, the private network domain name resolution equipment returns a private network domain name resolution result to the service terminal;
step 411, the proxy outbound server receives a private network service request from the service terminal;
step 412, the proxy outbound server extracts the private network domain name in the private network service request, wherein the private network domain name is generated based on the public network domain name in the original service request in the service terminal;
step 413, the proxy outbound server acquires a public network domain name corresponding to the private network domain name;
and step 414, the proxy outbound server generates and sends a public network service request corresponding to the public network domain name.
Based on the same concept, the embodiment of the present application provides a data transmission device, and specific implementation of the device may refer to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 5, the apparatus mainly includes:
a first obtaining module 501, configured to obtain a private network service request from a service terminal;
a first extracting module 502, configured to extract a private network domain name in a private network service request, where the private network domain name is generated based on a public network domain name in an original service request in a service terminal;
the query module 503 is configured to query a private network domain name resolution result pointed by a private network domain name, where the private network domain name resolution result indicates an address of a proxy outbound server, and the proxy outbound server is configured to transmit a service request from a private network to a public network;
a returning module 504, configured to return a private network domain name resolution result to the service terminal.
The query module 503 is configured to:
inquiring whether the address of the proxy outbound server is stored in the cache;
if the address of the proxy outbound server is not stored, forwarding a private network service request to the upper-level domain name resolution equipment;
and receiving a private network domain name resolution result returned by the upper-level domain name resolution equipment in response to the private network service request.
The query module 503 is configured to:
acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of a proxy outbound server;
and querying a domain name resolution configuration file by adopting the private network domain name to obtain a private network domain name resolution result.
The query module 503 is configured to:
and acquiring a domain name resolution configuration file from the upper-level domain name resolution equipment.
The domain name resolution configuration file comprises a port number of the proxy outbound server, and the port corresponding to the port number supports access to the proxy outbound server;
the apparatus is also configured to:
and after returning the domain name resolution result of the private network to the service terminal, returning the port number to the service terminal.
Based on the same concept, the embodiment of the present application provides a data transmission device, and specific implementation of the device may refer to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 6, the apparatus mainly includes:
a generating module 601, configured to generate an original service request;
a second obtaining module 602, configured to obtain a public network domain name in the original service request;
a determining module 603, configured to determine a private network domain name corresponding to the public network domain name;
the first processing module 604 is configured to generate and send a private network service request corresponding to a private network domain name.
The apparatus is also configured to:
before generating and sending a private network service request corresponding to a private network domain name, acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between the domain name and an address of a proxy outbound server;
querying a domain name resolution configuration file by adopting a private network domain name to obtain a private network domain name resolution result indicating the address of the proxy outbound server;
sending a private network service request corresponding to a private network domain name, comprising:
and sending a private network service request to the proxy outbound server.
The domain name resolution configuration file comprises a port number of the proxy outbound server, and the port corresponding to the port number supports access to the proxy outbound server;
the device is used for:
and updating the port number of the indication receiver in the private network service request into the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
The first processing module 604 is configured to:
sending a private network service request to a private network domain name resolution device;
receiving a private network domain name resolution result returned by the private network domain name resolution equipment in response to the private network service request, wherein the private network domain name resolution result indicates the address of the proxy outbound server;
and sending a private network service request to the proxy outbound server based on the address of the proxy outbound server.
The first processing module 604 is configured to:
and if the port number of the proxy outbound server is received, updating the port number indicating the receiver in the private network service request into the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
Based on the same concept, the embodiment of the present application provides a data transmission device, and specific implementation of the device may refer to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 7, the apparatus mainly includes:
a receiving module 701, configured to receive a private network service request from a service terminal;
a second extracting module 702, configured to extract a private network domain name in the private network service request, where the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
a third obtaining module 703, configured to obtain a public network domain name corresponding to the private network domain name;
the second processing module 704 is configured to generate and send a public network service request corresponding to a public network domain name.
Based on the same concept, the embodiment of the present application provides a data transmission system, and specific implementation of the apparatus may refer to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 8, the system mainly includes:
a service terminal 801, a private network domain name resolution device 802 and a proxy outbound server 803;
a service terminal 801, configured to generate an original service request; acquiring a public network domain name in an original service request; determining a private network domain name corresponding to the public network domain name; generating and sending a private network service request corresponding to a private network domain name;
a private network domain name resolution device 802, configured to obtain a private network service request from the service terminal 801; extracting a private network domain name in a private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in a service terminal; inquiring a private network domain name resolution result pointed by a private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outbound server 803, and the proxy outbound server 803 is used for transmitting a service request from a private network to a public network; returning a private network domain name resolution result to the service terminal 801;
the proxy outbound server 803 is configured to receive a private network service request from the service terminal 801; extracting a private network domain name in a private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in a service terminal; acquiring a public network domain name corresponding to the private network domain name; and generating and sending a public network service request corresponding to the public network domain name.
The following description is made on the data transmission system of this embodiment based on the difference in specific implementation between the private network domain name resolution device and the public network domain name resolution device:
in the following example, the service terminal is an IPTV box as an example.
Firstly, the private network domain name resolution equipment is realized by operator DNS equipment, and the public network domain name resolution equipment is realized by newly added DNS equipment of a service party:
and (3) environment deployment:
newly-added DNS equipment is deployed, can recurse to the upper-level DNS equipment, and is provided with DNS cache;
a Proxy outbound server (Proxy) is deployed and has load balancing capability;
dividing an IPTV public network area based on the outlet IP of the newly-added DNS equipment, and performing public network analysis; dividing an IPTV private network area based on an operator DNS outlet IP, and performing intranet analysis;
the SDK (software development kit) in the IPTV box realizes the domain name replacement function;
the IPTV box can normally access the DNS equipment of an operator;
and (3) access flow:
inquiring the resolution result of the local-domain name from the IPTV box to an operator DNS;
if the operator DNS has cache, directly returning a result (Proxy IP), and if the operator DNS has no result, recursing to a last level DNS equipment query result;
the domain name result points to a proxy network-out server, and an operator DNS sends a service request to the proxy network-out server;
the proxy outbound server inquires local-domain name through newly-added DNS equipment;
if the newly-added DNS equipment has cache, directly returning a result (a service server IP), and if the newly-added DNS equipment does not have a result, recursing to the last-level DNS equipment to query the result;
the domain name result points to the service server, and the proxy outbound server normally forwards the service request to the service server.
Returning service data is returned by the original path (service server → proxy outbound server → IPTV box)
Secondly, the private network domain name resolution device is realized by a private network DNS device (supporting port configurable) deployed by a service party in a private network, and the public network domain name resolution device is realized by an operator DNS device of the service party:
and (3) environment deployment:
a proxy outbound server is deployed and has load balancing capability;
dividing an IPTV public network area according to an IP (Internet protocol) outlet of a DNS (domain name system) of an operator; the private network DNS equipment performs intranet analysis without dividing an intranet area;
the SDK in the IPTV box realizes the compatible functions of domain name replacement, special network DNS protocol analysis and DNS query;
flow description (private network part only):
inquiring an analysis result of a local-domain name from the IPTV box to the DNS equipment;
the upper level domain name resolution equipment of the private network DNS equipment pushes a cache configured to the private network DNS equipment, and the private network DNS equipment also can query and update the cache in the upper level domain name resolution equipment at regular time; the private network DNS equipment directly returns a result to the IPTV box;
the domain name result points to a proxy outbound server, and the actual request is sent to the proxy outbound server;
the proxy outbound server inquires local-domain name through an operator DNS;
if the operator DNS has a cache, directly returning a result, and if the operator DNS does not have a result, recursing to the query result of the upper-level domain name resolution equipment;
the domain name result points to the service server, and the proxy outbound server normally forwards the request to the service server;
returning data is returned by the original path (service server → proxy outbound server → IPTV box)
The Proxy outbound server of the scheme generally only has Proxy (Proxy) software, and the hardware server is provided by an operator.
Finally, the domain name resolution service of the private network is deployed at the IPTV box side, and the domain name resolution equipment of the public network is realized by the DNS equipment of the operator of the service party:
and (3) environment deployment:
the operator provides a proxy server and only needs to meet the requirement of HTTP/HTTPS request forwarding;
the operator/agent provides intranet service for DNS configuration and issuing;
dividing an IPTV public network area according to an IP (Internet protocol) outlet of a DNS (domain name system) of an operator; the intranet DNS configuration service simulates intranet analysis without dividing an intranet area;
the SDK in the IPTV box realizes the compatible functions of domain name replacement, DNS configuration file analysis and DNS query;
flow description (private network part only):
the IPTV box requests a DNS configuration file from a DNS configuration service, and private network analysis is carried out by the IPTV box;
sending the request to the operator Proxy according to the analysis result;
inquiring a domain name resolution result from the operator Proxy to the operator DNS;
if the operator DNS has a cache, directly returning, and if the operator DNS does not have the cache, recursing to the upper-level domain name resolution equipment;
the domain name result points to the service server, and the operator Proxy forwards the request to the service server normally;
returning data is returned by the original route (service server → operator Proxy → IPTV box)
Based on the same concept, an embodiment of the present application further provides an electronic device, as shown in fig. 9, the electronic device mainly includes: a processor 901, a memory 902 and a communication bus 903, wherein the processor 901 and the memory 902 communicate with each other via the communication bus 903. The memory 902 stores a program executable by the processor 901, and the processor 901 executes the program stored in the memory 902, so as to implement the following steps:
acquiring a private network service request from a service terminal; extracting a private network domain name in a private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in a service terminal; inquiring a private network domain name resolution result pointed by a private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outbound server, and the proxy outbound server is used for transmitting a service request from the private network to a public network; returning a domain name resolution result of the private network to the service terminal;
or the like, or, alternatively,
generating an original service request; acquiring a public network domain name in an original service request; determining a private network domain name corresponding to the public network domain name; generating and sending a private network service request corresponding to a private network domain name;
or the like, or, alternatively,
receiving a private network service request from a service terminal; extracting a private network domain name in a private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in a service terminal; acquiring a public network domain name corresponding to the private network domain name; and generating and sending a public network service request corresponding to the public network domain name.
The communication bus 903 mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 903 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.
The Memory 902 may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Alternatively, the memory may be at least one storage device located remotely from the processor 901.
The Processor 901 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., and may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components.
In yet another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when run on a computer, causes the computer to execute the data transmission method described in the above embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes, etc.), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives), among others.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (18)
1. A data transmission method is applied to private network domain name resolution equipment and comprises the following steps:
acquiring a private network service request from a service terminal;
extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
inquiring a private network domain name resolution result pointed by the private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outgoing network server, and the proxy outgoing network server is used for transmitting the service request from a private network to a public network;
and returning the domain name resolution result of the private network to the service terminal.
2. The method according to claim 1, wherein querying the result of resolving the private network domain name pointed to by the private network domain name comprises:
inquiring whether the address of the proxy outbound server is stored in a cache;
if the address of the proxy outbound server is not stored, forwarding the private network service request to upper-level domain name resolution equipment;
and receiving the private network domain name resolution result returned by the upper-level domain name resolution equipment in response to the private network service request.
3. The method according to claim 1, wherein querying the result of resolving the private network domain name pointed to by the private network domain name comprises:
acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of the proxy outbound server;
and querying the domain name resolution configuration file by adopting the private network domain name to obtain a private network domain name resolution result.
4. The method of claim 3, wherein obtaining a domain name resolution profile comprises:
and acquiring the domain name resolution configuration file from the upper-level domain name resolution equipment.
5. The method according to claim 3, wherein the domain name resolution configuration file includes a port number of the proxy outbound server, and a port corresponding to the port number supports access to the proxy outbound server;
after returning the domain name resolution result of the private network to the service terminal, the method further comprises the following steps:
and returning the port number to the service terminal.
6. A data transmission method is characterized in that the method is applied to a service terminal and comprises the following steps:
generating an original service request;
acquiring a public network domain name in the original service request;
determining a private network domain name corresponding to the public network domain name;
and generating and sending a private network service request corresponding to the private network domain name.
7. The method of claim 6, wherein before generating and sending the private network service request corresponding to the private network domain name, further comprising:
acquiring a domain name resolution configuration file, wherein the domain name resolution configuration file is configured with a corresponding relation between a domain name and an address of the proxy outbound server;
querying the domain name resolution configuration file by adopting the private network domain name to obtain a private network domain name resolution result indicating the address of the proxy outbound server;
sending a private network service request corresponding to the private network domain name, including:
and sending the private network service request to the proxy outbound server.
8. The method according to claim 7, wherein the domain name resolution configuration file includes a port number of the proxy outbound server, and a port corresponding to the port number supports access to the proxy outbound server;
sending the private network service request to the proxy outbound server, including:
and updating the port number of the indicated receiver in the private network service request into the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
9. The method of claim 6, wherein sending a private network service request corresponding to the private network domain name comprises:
sending the private network service request to a private network domain name resolution device;
receiving a private network domain name resolution result returned by the private network domain name resolution equipment in response to the private network service request, wherein the private network domain name resolution result indicates the address of the proxy outbound server;
and sending the private network service request to the proxy outbound server based on the address of the proxy outbound server.
10. The method of claim 9, wherein sending the private network service request to the proxy outbound server comprises:
and if the port number of the proxy outbound server is received, updating the port number of the indication receiver in the private network service request to the port number of the proxy outbound server, and sending the updated private network service request to the proxy outbound server.
11. A data transmission method is applied to a proxy outbound server and comprises the following steps:
receiving a private network service request from a service terminal;
extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
acquiring a public network domain name corresponding to the private network domain name;
and generating and sending a public network service request corresponding to the public network domain name.
12. A method of data transmission, comprising:
a service terminal generates an original service request;
the service terminal acquires the public network domain name in the original service request;
the service terminal determines a private network domain name corresponding to the public network domain name;
the service terminal generates a private network service request corresponding to the private network domain name;
a service terminal sends a private network service request corresponding to a private network domain name resolution device;
the private network domain name resolution equipment acquires a private network service request from the service terminal;
a private network domain name resolution device extracts a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the private network domain name resolution equipment queries a private network domain name resolution result pointed by the private network domain name, the private network domain name resolution result indicates an address of a proxy outbound server, and the proxy outbound server is used for transmitting the service request from the private network to a public network;
the private network domain name resolution equipment returns the private network domain name resolution result to the service terminal;
the service terminal receives the private network domain name resolution result from the private network domain name resolution equipment and sends the private network service request to a proxy outbound server based on the private network domain name resolution result;
the proxy outbound server receives the private network service request from the service terminal;
the proxy outbound server extracts a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the proxy outbound server acquires a public network domain name corresponding to the private network domain name;
and the proxy outbound server generates and sends a public network service request corresponding to the public network domain name.
13. A data transmission device is characterized in that the data transmission device is applied to private network domain name resolution equipment and comprises:
the first acquisition module is used for acquiring a private network service request from a service terminal;
the first extraction module is used for extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
the inquiry module is used for inquiring a private network domain name resolution result pointed by the private network domain name, the private network domain name resolution result indicates the address of a proxy outbound server, and the proxy outbound server is used for transmitting the service request from the private network to a public network;
and the return module is used for returning the private network domain name resolution result to the service terminal.
14. A data transmission apparatus, applied to a service terminal, comprising:
the generating module is used for generating an original service request;
the second obtaining module is used for obtaining the public network domain name in the original service request;
the determining module is used for determining a private network domain name corresponding to the public network domain name;
and the first processing module is used for generating and sending the private network service request corresponding to the private network domain name.
15. A data transmission apparatus, applied to a proxy outbound server, comprising:
the receiving module is used for receiving a private network service request from a service terminal;
a second extraction module, configured to extract a private network domain name in the private network service request, where the private network domain name is generated based on a public network domain name in an original service request in the service terminal;
a third obtaining module, configured to obtain a public network domain name corresponding to the private network domain name;
and the second processing module is used for generating and sending a public network service request corresponding to the public network domain name.
16. A data transmission system, comprising:
the system comprises a service terminal, a private network domain name resolution device and a proxy outbound server;
the service terminal is used for generating an original service request; acquiring a public network domain name in the original service request; determining a private network domain name corresponding to the public network domain name; generating and sending a private network service request corresponding to the private network domain name;
the private network domain name resolution equipment is used for acquiring a private network service request from the service terminal; extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal; inquiring a private network domain name resolution result pointed by the private network domain name, wherein the private network domain name resolution result indicates an address of a proxy outgoing network server, and the proxy outgoing network server is used for transmitting the service request from a private network to a public network; returning the domain name resolution result of the private network to the service terminal;
the proxy outbound server is used for receiving a private network service request from the service terminal; extracting a private network domain name in the private network service request, wherein the private network domain name is generated based on a public network domain name in an original service request in the service terminal; acquiring a public network domain name corresponding to the private network domain name; and generating and sending a public network service request corresponding to the public network domain name.
17. An electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus; the memory for storing a computer program; the processor, configured to execute the program stored in the memory, and implement the data transmission method according to any one of claims 1 to 5, any one of claims 6 to 10, or claim 11.
18. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the data transmission method of any one of claims 1 to 5, any one of claims 6 to 10 or claim 11.
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