CN104869182A - Domain name resolution method and device - Google Patents
Domain name resolution method and device Download PDFInfo
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- CN104869182A CN104869182A CN201510283778.2A CN201510283778A CN104869182A CN 104869182 A CN104869182 A CN 104869182A CN 201510283778 A CN201510283778 A CN 201510283778A CN 104869182 A CN104869182 A CN 104869182A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
Abstract
The invention discloses a domain name resolution method and device, and belongs to the field of computers. The method comprises the steps that when a domain name resolution server fails to resolve domain name information, a server set is obtained, wherein the server set comprises at least one first proxy server, and the first proxy server comprises all or part of the domain name information in the domain name resolution server and corresponding relations of internet protocol IP addresses; one first proxy server is selected from the server set; and an IP address corresponding to the domain name information is acquired from the selected first proxy server. The device comprises a first acquisition module, a selection module and a second acquisition module. The first proxy server comprises all or part of the domain name information in the domain name resolution server and the corresponding relations of the IP addresses. When the domain name resolution server fails to resolve the domain name information, the IP address corresponding to the domain name information is acquired from the first proxy server so that reliability of domain name resolution is enhanced.
Description
Technical field
The present invention relates to computer realm, the method and apparatus of particularly a kind of domain name mapping.
Background technology
When the resource of user in accesses network, the address of resource is normally with URL (UniformResource Locator, URL(uniform resource locator)) form statement, domain name in URL then illustrates the address of server, but server is generally use IP (Internet Protocol on network, the agreement interconnected between network) address to be to represent its address, so terminal is before connection server, just need domain name to be converted to IP address, this transfer process is called domain name mapping.
Prior art provides a kind of method of domain name mapping, Ke Yiwei: terminal obtains IP address corresponding to domain-name information from domain name resolution server, and by this IP address caching in local a period of time; When domain name resolution server resolves domain-name information failure, whether terminal is searched from local cache exists IP address corresponding to this domain-name information, if existed, then from local cache, obtains the IP address that this domain-name information is corresponding.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
When there is not IP address corresponding to this domain-name information in local cache, terminal cannot obtain IP address corresponding to this domain-name information, thus cause the reliability of domain name mapping low.
Summary of the invention
In order to make the problem of solution prior art, the invention provides a kind of method and apparatus of domain name mapping.Technical scheme is as follows:
On the one hand, the invention provides a kind of method of domain name mapping, described method comprises:
When domain name resolution server resolves domain-name information failure, obtain server set, described server set comprises at least one first agent's server, and described first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
First agent's server is selected from described server set;
The IP address that domain name information is corresponding is obtained from first agent's server of described selection.
Further, described acquisition server set, comprising:
Set up network with second agent's server to be connected;
Connected by described network and obtain server set from described second agent's server.
Further, described from described server set select first agent's server, comprising:
One is selected from the nearest first agent's server of terminal current location from server set.
Further, describedly from server set, select one from the nearest first agent's server of terminal current location, comprising:
Obtain terminal and each first agent's server in described server set set up network be connected needed for set up duration;
Select to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
Further, described from server set select first agent's server, comprising:
According to domain name information, determine the domain name type belonging to domain name information;
According to domain name type, from described server set, select a first agent's server can resolving domain name type.
Further, described method also comprises:
The response message returned when obtaining network state and the domain name resolution server parsing domain name information of terminal;
If described network state is normal and described response message is presupposed information, then determine that domain name resolution server resolves domain-name information failure.
Further, described determine domain name resolution server resolve domain-name information failure before, also comprise:
Send domain name information to the described response message returned when domain name resolution server and reception domain name server parses domain name information;
Calculate the time interval sending domain name information and receive between described response message;
If the described time interval is less than preset duration, then performs and determine that domain name resolution server resolves the step of domain-name information failure.
On the other hand, the invention provides a kind of device of domain name mapping, described device comprises:
First acquisition module, during for resolving domain-name information failure when domain name resolution server, obtain server set, described server set comprises at least one first agent's server, and described first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
Select module, for selecting first agent's server from described server set;
Second acquisition module, for obtaining IP address corresponding to domain name information from first agent's server of described selection.
Further, described first acquisition module, comprising:
Setting up unit, being connected for setting up network with second agent's server;
Acquiring unit, obtains server set for being connected by described network from described second agent's server.
Further, described selection module, comprising:
First selected cell, for selecting one from the nearest first agent's server of terminal current location from server set.
Further, described first selected cell, comprising:
Obtain subelement, for obtain terminal and each first agent's server in described server set set up network be connected needed for set up duration;
Chooser unit, for selecting to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
Further, described selection module, comprising:
Determining unit, for according to domain name information, determines the domain name type belonging to domain name information;
Second selected cell, for according to domain name type, selects a first agent's server can resolving domain name type from described server set.
Further, described device also comprises:
3rd acquisition module, the response message returned when network state and domain name resolution server for obtaining terminal resolve domain name information;
Determination module, if being normal and described response message for described network state is presupposed information, then determines that domain name resolution server resolves domain-name information failure.
Further, described device also comprises:
Sending module, for sending domain name information to the described response message returned when domain name resolution server and reception domain name server parses domain name information;
Computing module, for calculating the time interval sending domain name information and receive between described response message;
If the described time interval is less than preset duration, then described determination module, for determining that domain name resolution server resolves domain-name information failure.
In the present invention, first agent's server comprises the corresponding relation of all or part of domain-name information in domain name resolution server and IP address, when terminal determines that domain name resolution server resolves domain-name information failure, obtain server set, a proxy server is selected from server set, IP address corresponding to this domain-name information is obtained from the first agent's server selected, thus can ensure that even if domain name resolution server is resolved this domain-name information and be have failed, also can get the IP address that this domain-name information is corresponding, improve the reliability of domain name mapping.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of a kind of domain name mapping that the embodiment of the present invention 1 provides;
Fig. 2 is the method flow diagram of a kind of domain name mapping that the embodiment of the present invention 2 provides;
Fig. 3 is the apparatus structure schematic diagram of a kind of domain name mapping that the embodiment of the present invention 3 provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
During the resource of user on access services device, user input fields name information is to terminal; Terminal sends this domain-name information to domain name resolution server; Domain name resolution server is resolved this this domain-name information and is obtained IP address corresponding to this domain-name information; When this domain-name information of reasons analysis failure due to domain name resolution server, the method that can be provided by the embodiment of the present invention, first agent's server is selected from server set, from the first agent's server selected, obtain IP address corresponding to this domain-name information, thus improve the reliability of domain name mapping.
The executive agent of the method is terminal, and see Fig. 1, the method comprises:
Step 101: when domain name resolution server resolves domain-name information failure, obtain server set, server set comprises at least one first agent's server, and first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
Step 102: select first agent's server from server set;
Step 103: obtain IP address corresponding to domain-name information from the first agent's server selected.
Further, obtain server set, comprising:
Set up network with second agent's server to be connected;
Connected by network and obtain server set from second agent's server.
Further, from server set, select first agent's server, comprising:
One is selected from the nearest first agent's server of terminal current location from server set.
Further, from server set, select one from the nearest first agent's server of terminal current location, comprising:
Obtain terminal and each first agent's server in server set set up network be connected needed for set up duration;
Select to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
Further, from server set, select first agent's server, comprising:
According to domain-name information, determine the domain name type belonging to domain-name information;
According to domain name type, from server set, select a first agent's server can resolving domain name type.
Further, method also comprises:
The response message returned when obtaining network state and the domain name resolution server parsing domain-name information of terminal;
If network state is normal and response message is presupposed information, then determine that domain name resolution server resolves domain-name information failure.
Further, before determining that domain name resolution server resolves domain-name information failure, also comprise:
The response message returned when sending domain name information to domain name analysis server and receive domain name server parses domain-name information;
Calculate the time interval sending domain-name information and receive between response message;
If the time interval is less than preset duration, then performs and determine that domain name resolution server resolves the step of domain-name information failure.
In embodiments of the present invention, first agent's server comprises the corresponding relation of all or part of domain-name information in domain name resolution server and IP address, when terminal determines that domain name resolution server resolves domain-name information failure, obtain server set, a proxy server is selected from server set, IP address corresponding to this domain-name information is obtained from the first agent's server selected, thus can ensure that even if domain name resolution server is resolved this domain-name information and be have failed, also the IP address that this domain-name information is corresponding can be got, improve the reliability of domain name mapping.
Embodiment 2
During the resource of user on access services device, user input fields name information is to terminal; Terminal sends this domain-name information to domain name resolution server; Domain name resolution server is resolved this this domain-name information and is obtained IP address corresponding to this domain-name information; When this domain-name information of reasons analysis failure due to domain name resolution server, the method that can be provided by the embodiment of the present invention, first agent's server is selected from server set, from the first agent's server selected, obtain IP address corresponding to this domain-name information, thus improve the reliability of domain name mapping.
The executive agent of the method is terminal, and see Fig. 2, wherein, the method comprises:
Step 201: when domain name resolution server resolves domain-name information failure, terminal is set up network with second agent's server and is connected;
In the resource of user in accesses network, user input fields name information is to terminal, and terminal obtains the domain-name information of user's input, sends this domain-name information to domain name resolution server; This domain-name information that domain name resolution server receiving terminal sends, IP address corresponding to this domain-name information is obtained from the corresponding relation of domain-name information and IP address, if when domain name resolution server resolves this domain-name information success, send IP address corresponding to this domain-name information to terminal; If when domain name resolution server resolves this domain-name information failure, send response message to terminal.
Terminal, according to this response message, determines whether it is that domain name resolution server resolves this domain-name information failure, is specially:
The response message that the network state of acquisition terminal and domain name resolution server return when resolving this domain-name information; Determine whether network state is normal and whether this response message is presupposed information; If network state is normal and response message is presupposed information, then determine that domain name resolution server resolves this domain-name information failure.
Wherein, presupposed information is the information that domain name resolution server parsing domain-name information unsuccessfully returns, and this presupposed information can for the error code etc. returned when Fail Type or failure.
In order to verify that to be whether domain name resolution server resolve this domain-name information failure further, terminal sends this domain-name information again to domain name resolution server, if domain name resolution server resolves this domain-name information failure, then domain name resolution server can return response message very soon, the time that terminal returns response message according to domain name resolution server determines whether it is that domain name resolution server resolves this domain-name information failure, and detailed process is as follows:
Terminal sends this domain-name information to domain name resolution server, and the response message returned during this domain-name information of acceptance domain name analysis server parses; Calculate the time interval sending this domain-name information and receive between this response message; If this time interval is less than preset duration, then determine it is that domain name resolution server resolves domain-name information failure.
In order to improve the reliability of checking, whether terminal can multiple authentication be also that domain name resolution server resolves this domain-name information failure, terminal repeatedly sends this domain-name information to domain name resolution server, obtain each time interval sending this domain-name information and receive between this response message, if each corresponding time interval is all less than preset duration, then determine it is that domain name resolution server resolves domain-name information failure; Or calculate the mean value in each corresponding time interval, if this mean value is less than preset duration, then determine it is that domain name resolution server resolves domain-name information failure.
Preset duration can carry out arranging and changing as required, does not do concrete restriction in embodiments of the present invention to preset duration.Such as, preset duration is 1s or 0.5s etc.
When terminal determine be domain name resolution server resolve domain-name information failure time, because network state is normal, therefore, terminal can be set up network by linkd agreement and server and be connected, and transmit data by the connection of this network, detailed process is as follows:
Terminal obtains the IP address of second agent's server, sets up network be connected by linkd agreement and this IP address with second agent's server.
Wherein, in terminal, store the IP address of second agent's server in advance, when determining that domain name resolution server resolves domain-name information failure, the IP address of second agent's server that direct acquisition has stored.
Step 202: connected by this network and obtain server set from second agent's server;
Server set is stored in second agent's server, server set comprises at least one first agent's server, first agent's server comprises the corresponding relation of all or part of domain-name information in domain name resolution server and IP address, connect second agent's server by this network and send server set to terminal, terminal receives the server set that second agent's server sends.
Wherein, in server set, at least comprise the IP address of first agent's server, also can comprise the domain name type that first agent's server can resolve domain-name information.
In embodiments of the present invention, also can be implemented in storage server set in terminal, when domain name resolution server resolves domain-name information failure, the server set that direct acquisition has stored.
Step 203: select first agent's server from server set;
If first agent's server comprises the corresponding relation of whole domain-name information in domain name resolution server and IP address, this step can be realized by following first kind of way; If first agent's server comprises the corresponding relation of part domain-name information in domain name resolution server and IP address, this step can be realized by the following second way.
For the first implementation, select first agent's server according to the distance between terminal and first agent's server, then this step can be:
One is selected from the nearest first agent's server of terminal current location from server set.
Particularly, obtain terminal and each first agent's server in server set set up network be connected needed for set up duration, selection sets up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.Or, obtain the positional information of each first agent's server in server set, according to the positional information of terminal and the positional information of each first agent's server, the distance between computing terminal and each first agent's server, first agent's server that chosen distance is nearest.
Wherein, obtain terminal and first agent's server set up network be connected needed for the step setting up duration can be:
Obtain terminal and send the request of foundation to the transmitting time of first agent's server, and receive the time of reception of the foundation response that first agent's server returns, according to this transmitting time and this time of reception, computing terminal and this first agent's server set up network be connected needed for set up duration.
It should be noted that, in this step, terminal also can from server set Stochastic choice first agent's server.
For the second implementation, this step can be:
Server set comprises the domain name type that the IP address of first agent's server and this first agent's server can resolve domain-name information.According to this domain-name information, determine the domain name type belonging to this domain-name information; According to this domain name type, from server set, select a first agent's server can resolving this domain name type.
Wherein, the correspondence set that the domain-name information stored in each first agent's server forms with the corresponding relation of IP address is identical with the corresponding relation of IP address with the domain-name information that domain name resolution server comprises.Namely also each first agent's server comprises corresponding relation, the whole domain-name information in the domain name resolution server that all first agent's servers comprise and the corresponding relation of IP address of part domain-name information in domain name resolution server and IP address.
Such as, some first agent's servers can resolve the domain-name information of large website, such as Baidu etc.; Some first agent's servers can only resolve the domain-name information of little website, as school website etc.; When this domain-name information is the domain-name information of the large websites such as Baidu, select the first agent's server can resolving the domain-name information of large website; When this domain-name information is the domain-name information of Deng little website, school website, select the first agent's server can resolving the domain-name information of little website.
Step 204: obtain IP address corresponding to this domain-name information from the first agent's server selected;
According to the IP address of the first agent's server selected, send this domain-name information to the first agent's server selected; This domain-name information that the first agent's server receiving terminal selected sends, according to this domain-name information, obtains IP address corresponding to this domain-name information, sends this IP address to terminal from the corresponding relation of domain-name information and IP address; Terminal receives the IP address of the first agent's server transmission selected.
It should be noted that, if store the corresponding relation of domain-name information and IP address in second agent's server, can not perform step 202,203 and 204, terminal directly obtains IP address corresponding to this domain-name information from second agent's server.
Further, select first agent's server from server set after, the IP address of first agent's server of this selection is obtained from server set, store the IP address of first agent's server of this selection, when later domain name resolution server resolves domain-name information failure, the IP address of first agent's server of direct this selection of acquisition, directly obtains IP address corresponding to domain-name information according to this IP address from first agent's server of this selection.
Step 205: according to this IP address, obtains Internet resources.
Send http (HyperText Transfer Protocol, HTML (Hypertext Markup Language)) request to server, this http request carries this IP address; The http request that server receiving terminal sends, and the Internet resources corresponding according to this this IP address of IP address acquisition, send these Internet resources to terminal.
Such as, when user's upload user data or when obtaining picture resource, when domain name resolution server resolves domain-name information failure, IP address corresponding to domain-name information is obtained from the first agent's server selected, according to this IP address upload user data or acquisition picture resource, even if thus ensure that domain name resolution server resolves domain-name information failure, also by http agreement upload user data or acquisition picture resource.
In embodiments of the present invention, first agent's server comprises the corresponding relation of all or part of domain-name information in domain name resolution server and IP address, when terminal determines that domain name resolution server resolves domain-name information failure, obtain server set, a proxy server is selected from server set, IP address corresponding to this domain-name information is obtained from the first agent's server selected, thus can ensure that even if domain name resolution server is resolved this domain-name information and be have failed, also the IP address that this domain-name information is corresponding can be got, improve the reliability of domain name mapping.
Embodiment 3
Embodiments provide a kind of device of domain name mapping, see Fig. 3, wherein, this device comprises:
First acquisition module 301, during for resolving domain-name information failure when domain name resolution server, obtain server set, server set comprises at least one first agent's server, and first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
Select module 302, for selecting first agent's server from server set;
Second acquisition module 303, for obtaining IP address corresponding to domain-name information from the first agent's server selected.
Further, the first acquisition module 301, comprising:
Setting up unit, being connected for setting up network with second agent's server;
Acquiring unit, obtains server set for being connected by network from second agent's server.
Further, select module 302, comprising:
First selected cell, for selecting one from the nearest first agent's server of terminal current location from server set.
Further, the first selected cell, comprising:
Obtain subelement, for obtain terminal and each first agent's server in server set set up network be connected needed for set up duration;
Chooser unit, for selecting to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
Further, select module 302, comprising:
Determining unit, for according to domain-name information, determines the domain name type belonging to domain-name information;
Second selected cell, for according to domain name type, selects a first agent's server can resolving domain name type from server set.
Further, device also comprises:
3rd acquisition module, the response message returned when network state and domain name resolution server for obtaining terminal resolve domain-name information;
Determination module, if for network state for normal and response message is presupposed information, then determine that domain name resolution server resolves domain-name information failure.
Further, device also comprises:
Sending module, the response message returned during for sending domain name information to domain name analysis server and receiving domain name server parses domain-name information;
Computing module, for calculating the time interval sending domain-name information and receive between response message;
If the time interval is less than preset duration, then determination module, for determining that domain name resolution server resolves domain-name information failure.
In embodiments of the present invention, first agent's server comprises the corresponding relation of all or part of domain-name information in domain name resolution server and IP address, when terminal determines that domain name resolution server resolves domain-name information failure, obtain server set, a proxy server is selected from server set, IP address corresponding to this domain-name information is obtained from the first agent's server selected, thus can ensure that even if domain name resolution server is resolved this domain-name information and be have failed, also the IP address that this domain-name information is corresponding can be got, improve the reliability of domain name mapping.
It should be noted that: the device of the domain name mapping that above-described embodiment provides is when domain name mapping, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by device is divided into different functional modules, to complete all or part of function described above.In addition, the device of the domain name mapping that above-described embodiment provides and the embodiment of the method for domain name mapping belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for domain name mapping, is characterized in that, described method comprises:
When domain name resolution server resolves domain-name information failure, obtain server set, described server set comprises at least one first agent's server, and described first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
First agent's server is selected from described server set;
The IP address that domain name information is corresponding is obtained from first agent's server of described selection.
2. the method for claim 1, is characterized in that, described from described server set select first agent's server, comprising:
One is selected from the nearest first agent's server of terminal current location from server set.
3. method as claimed in claim 2, is characterized in that, describedly from server set, selects one from the nearest first agent's server of terminal current location, comprising:
Obtain terminal and each first agent's server in described server set set up network be connected needed for set up duration;
Select to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
4. the method for claim 1, is characterized in that, described from server set select first agent's server, comprising:
According to domain name information, determine the domain name type belonging to domain name information;
According to domain name type, from described server set, select a first agent's server can resolving domain name type.
5. the method for claim 1, is characterized in that, described method also comprises:
The response message returned when obtaining network state and the domain name resolution server parsing domain name information of terminal;
If described network state is normal and described response message is presupposed information, then determine that domain name resolution server resolves domain-name information failure.
6. a device for domain name mapping, is characterized in that, described device comprises:
First acquisition module, during for resolving domain-name information failure when domain name resolution server, obtain server set, described server set comprises at least one first agent's server, and described first agent's server comprises the corresponding relation of the Protocol IP address interconnected between all or part of domain-name information in domain name resolution server and network;
Select module, for selecting first agent's server from described server set;
Second acquisition module, for obtaining IP address corresponding to domain name information from first agent's server of described selection.
7. device as claimed in claim 6, it is characterized in that, described selection module, comprising:
First selected cell, for selecting one from the nearest first agent's server of terminal current location from server set.
8. device as claimed in claim 7, it is characterized in that, described first selected cell, comprising:
Obtain subelement, for obtain terminal and each first agent's server in described server set set up network be connected needed for set up duration;
Chooser unit, for selecting to set up the shortest first agent's server of duration as from the nearest first agent's server of terminal current location.
9. device as claimed in claim 6, it is characterized in that, described selection module, comprising:
Determining unit, for according to domain name information, determines the domain name type belonging to domain name information;
Second selected cell, for according to domain name type, selects a first agent's server can resolving domain name type from described server set.
10. device as claimed in claim 6, it is characterized in that, described device also comprises:
3rd acquisition module, the response message returned when network state and domain name resolution server for obtaining terminal resolve domain name information;
Determination module, if being normal and described response message for described network state is presupposed information, then determines that domain name resolution server resolves domain-name information failure.
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| CN112532764A (en) * | 2020-12-01 | 2021-03-19 | 上海哔哩哔哩科技有限公司 | Data acquisition method and device |
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| CN103281409A (en) * | 2013-06-24 | 2013-09-04 | 广州菁英信息技术有限公司 | Domain name resolution method of mobile internet and DNS server based on TCP protocol |
| CN103780715A (en) * | 2014-01-29 | 2014-05-07 | 百度在线网络技术（北京）有限公司 | Domain name resolution implementing method, client side and cloud server |
| CN103973835A (en) * | 2014-05-16 | 2014-08-06 | 北京金山网络科技有限公司 | Domain name system server selection method and device |
| CN104639672A (en) * | 2015-02-12 | 2015-05-20 | 广州华多网络科技有限公司 | Method and device for domain name resolution (DNS) |
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| CN111478984A (en) * | 2020-03-17 | 2020-07-31 | 平安科技（深圳）有限公司 | Server IP address obtaining method and device and computer readable storage medium |
| CN112532764A (en) * | 2020-12-01 | 2021-03-19 | 上海哔哩哔哩科技有限公司 | Data acquisition method and device |
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