WO2014206118A1

WO2014206118A1 - Domain name resolution method based on tcp protocol in mobile internet and dns server

Info

Publication number: WO2014206118A1
Application number: PCT/CN2014/073640
Authority: WO
Inventors: 谭蔚华
Original assignee: 广州市动景计算机科技有限公司
Priority date: 2013-06-24
Filing date: 2014-03-18
Publication date: 2014-12-31
Also published as: CN103281409A; CN103281409B

Abstract

The present invention provides a domain name resolution method based on the TCP protocol in the mobile Internet and a DNS server. The domain name resolution method comprises: after a DNS server receives a domain name resolution request sent by a mobile terminal browser, the DNS server first determining that a resolution result matching the domain name does not exist in a caching library or a DNS database of the DNS server, the DNS server then initiating the domain name resolution request to a Bind cache server group of at least one region, the Bind cache server group sending a domain name resolution result to the DNS server, and the DNS server then selecting a domain name resolution result and returning the domain name resolution result to the mobile terminal browser. By means of the present invention, a problem of data packet loss caused by poor network quality in the mobile Internet can be solved, thereby enhancing the usability and stability of a DNS server during webpage browsing.

Description

TECHNICAL FIELD The present invention relates to the field of DNS service technologies, and in particular, to a mobile Internet domain name resolution method and a DNS server based on a TCP protocol. BACKGROUND With the continuous development of technology, more and more people are beginning to use mobile terminals such as mobile phones to access the Internet, so that they can understand the information at any time. As a core service of the Internet, DNS (Domain Name System) maps domain names and IP (Internet Protocol) addresses to each other, making it easier for users to use the domain name to access the Internet without having to remember. Live a string of IP numbers that can be read directly by the machine. When the user accesses the webpage, the user first requests the DNS server to resolve the domain name of the webpage to be accessed, obtains the IP address corresponding to the webpage domain name, and then the browser requests the IP address to establish a connection and obtain the content. For example, if the user requests to visit the webpage of www.uc.cn, the DNS server is first requested to parse the domain name www.uc.cn, and the IP address of the domain name is 61.145.135.221, and then the browser requests the IP address of 61.145.135.221, thereby The web page establishes a connection and gets the content. The existing server's DNS server is based on the User Datagram Protocol (UDP) protocol. The communication is performed under good network quality. The communication is more efficient. However, when the network is busy, packet loss is likely to occur. The user is unable to obtain the results of the DNS server resolution, resulting in the user being unable to browse the web. This is especially true for the Internet in mobile environments. In addition, the traditional DNS server can only return one line query result. If the line does not query the IP address corresponding to the domain name of the page to be parsed, the browser will display the query, which may result in the user not accessing the corresponding web page. SUMMARY OF THE INVENTION In view of the above problems, the main object of the present invention is to provide a mobile Internet domain name resolution method and a DNS server based on the TCP protocol, so as to solve the problem that a mobile terminal such as a mobile terminal and a browser device of a mobile device are issued due to poor network quality loss in the mobile Internet. The request data cannot reach the DNS server normally or the browser cannot receive the DNS server response result properly, so as to improve the availability and stability of the DNS server during web browsing. According to an aspect of the present invention, a mobile internet domain name resolution method based on a TCP protocol is provided, the method comprising:

The DNS server receives the domain name resolution request sent by the mobile terminal browser through the TCP protocol;

The DNS server determines that the domain name resolution result does not match the domain name resolution request, and initiates a domain name resolution request to the cache server group of the at least one region;

The DNS server receives the domain name resolution result returned by the public network DNS sent by the cache server group;

The DNS server selects the domain name resolution result and returns it to the mobile terminal browser. According to another aspect of the present invention, the present invention further provides a mobile internet DNS server based on the TCP protocol, comprising: a domain name receiving unit, configured to receive a domain name resolution request sent by a mobile terminal browser through a TCP protocol; and a determining unit, configured to: Determining the domain name resolution result that is not matched with the domain name resolution request; the parsing result obtaining unit is configured to initiate a domain name resolution request to the cache server group of the at least one region; and the parsing result receiving unit is configured to receive the public network sent by the cache server group The domain name resolution result returned by the DNS; and the parsing result returning unit, which is used to select the domain name parsing result and return it to the mobile terminal browser. The above-mentioned TCP-based mobile Internet domain name resolution method and DNS server according to the present invention can solve the problem of data packet loss caused by poor network quality in the mobile Internet, and avoid browsing of mobile terminal browser devices such as mobile phones existing in the prior art. The request data sent by the device cannot reach the DNS server normally or the browser cannot receive the UDP result of the DNS server response normally, and can return the domain name resolution result of multiple lines, thereby improving the availability and stability of the DNS server during web browsing. In order to achieve the above and related ends, the one or more aspects of the invention are described in the following detailed description. The following description and the annexed drawings set forth in detail However, these aspects are indicative of only some of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents. Other objects and results of the present invention will become more apparent from the following description of the appended claims. In the drawings: FIG. 1 is a schematic flowchart of a method for analyzing a domain name of a mobile Internet based on a TCP protocol according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a processing flow of a web interface on a server side according to an embodiment of the present invention; A block diagram of a mobile internet DNS server based on the TCP protocol of an embodiment. The same reference numerals are used throughout the drawings to refer to the DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the foregoing prior art, the UDP protocol is prone to packet loss in the case of poor network quality, which may result in the user not being able to obtain the DNS server resolution result. The embodiment of the present invention provides a TCP-based DNS server in the mobile Internet. Through the link guarantee mechanism of the TCP protocol, the DNS server is not affected by the fluctuation of the mobile network environment, thereby improving the availability and stability of the DNS server during web browsing. It should be noted that the mobile terminal involved in the embodiment of the present invention mainly refers to a terminal that uses a mobile terminal browser and a mobile Internet to perform network access, such as a mobile phone. FIG. 1 is a schematic flowchart diagram of a method for analyzing a mobile Internet domain name based on a TCP protocol according to an embodiment of the present invention. As shown in FIG. 1 , the method for analyzing a mobile Internet domain name based on the TCP protocol provided by the embodiment of the present invention includes:

S110: The DNS server receives a domain name resolution request sent by the mobile terminal browser through the TCP protocol, where the DNS server is a DNS server in the TCP-based mobile internet;

S120: determining, in the cache pool of the DNS server or the DNS database, that the domain name resolution result does not match the domain name requested to be resolved; wherein, in step S120, the DNS server first determines whether the cache database matches the domain name requested to be resolved. The result of domain name resolution, if the DNS server's cache library does not match the domain name requested for resolution. As a result of the domain name resolution, the DNS server initiates a query to the DNS database to determine whether the DNS database has a resolution matching the domain name requested to be resolved. If there is no matching domain name resolution in the DNS server cache database and the DNS database. The result proceeds to step S130, otherwise proceeds to step S150.

S130: The DNS server initiates a domain name resolution request to the cache server group of the at least one area, where the cache server group initiates a domain name resolution request to the public network DNS through the route of different operators in the area;

S140: The DNS server receives the domain name resolution result returned by the public network DNS sent by the cache server group.

S150: The DNS server selects the domain name resolution result and returns it to the mobile terminal browser. As shown in the flowchart of FIG. 1, the mobile Internet domain name resolution method provided by the embodiment of the present invention communicates by using the TCP protocol, and utilizes the link guarantee mechanism of the TCP protocol, so that the DNS server is not affected by the fluctuation of the mobile network environment. This improves the stability of the DNS server and improves the user experience when browsing the web. In a specific embodiment of the present invention, data exchange between the mobile terminal browser and the DNS server is implemented through a socket of java. In step S120, it is determined that the DNS server cache database or the DNS database does not have the domain name resolution result matching the domain name requested to be resolved, and the DNS server cache database or the DNS database may have a domain name matching the domain name requested to be resolved. Analyze the results. The DNS server queries the cache database or the DNS database for the domain name resolution result according to the domain name that the request resolves. That is to say, in the process of determining the DNS server cache database or the DNS database with or without the domain name resolution result, the following two steps are actually included. First, the DNS server queries the cache library to see if there is a domain name matching the request resolution. The result of the domain name resolution is that if there is no matching result in the cache database of the DNS server matching the domain name to be resolved, it is queried from the DNS database to check whether there is a matching domain name resolution result. If the DNS server cache database or the DNS database has a domain name resolution result that matches the domain name to be resolved, the process directly proceeds to step S150, where the domain name resolution result is selected and returned to the mobile terminal browser. In the process of querying the DNS server cache database or the DNS data inventory for the domain name resolution result matching the domain name requested to be resolved, the data format of the domain name resolution result in the cache library or the DNS database is: domain name_result+ IP_Results+ Survival Time ttl_Results+Location_Result+Operator. For example, if the domain name requested by the mobile terminal browser in the Guangdong Unicom network is: www.sina.com.cn, the data format matching the domain name in the cache database is: www.sina. com.cn_218.30.21.65_600_Guangdong_China Unicom. The DNS server returns the domain name resolution result to the mobile terminal browser through a preset data format, and the preset format is that the domain name resolution result is slow. The data format in the repository, therefore, the return of the domain name www.sina.com.cn requested by the mobile terminal browser in Guangdong Unicom.com is: www.sina.com.cn_218.30.21.65_600_广东_联通. In a specific embodiment of the present invention, if the DNS server does not query the domain name resolution result matching the domain name requested to be resolved in the cache library or the DNS database, the Bind cache server group is composed of multiple Bind cache servers, and each The Bind cache server obtains the domain name resolution result from the public network DNS server through a carrier's line in the area. That is to say, if the matching domain name resolution result is not found in the cache server or the DNS database of the DNS server itself, multiple cached DNS instances are executed, that is, multiple identical programs are run on one DNS server. The network DNS initiates a query. The DNS server initiates a standard DNS query through multiple sets of self-built Bind cache servers in multiple regions, and multiple sets of self-built Bind cache servers in multiple regions to the public through different carriers in the region. The network queries the domain name resolution result. In the embodiment of the present invention, the mobile terminal browser may issue multiple domain name resolution requests at the same time, and the mobile terminal browser may also send a resolution request of a certain domain name from multiple dimensions, for example: the mobile terminal browser simultaneously sends out through the mobile network. 10 domain name resolution requests, and requests are sent from 3 dimensions at the same time. Here, the three dimensions refer to user habits, navigation page placement, and history records. Therefore, the DNS server receives 30 domain name resolution requests at the same time. At the same time, since the DNS server initiates standard DNS query through multiple sets of self-built Bind cache servers in multiple regions, it also needs to pass multiple groups of self-built Bind cache servers in multiple regions to different operators passing through the region. When the line queries the public network, the DNS server may obtain the domain name resolution result, which is composed of multiple parsing results of multiple domain names. That is to say, the DNS server also receives multiple resolution results under one domain name, and the domain name resolution result obtained when the same domain name is requested twice, or the same analysis result obtained by the same domain name on different lines. Therefore, before the DNS server returns the domain name resolution result to the mobile terminal browser, the method further includes performing deduplication processing on the domain name resolution result, that is, ensuring that there is no duplicate analysis result in the analysis result of the domain name. In one embodiment of the invention, the repeated parsing results are removed via the web interface. The web interface is written by nginx scrlPt technology, and the interface specification is:

Request: domain 1_ circumvents IP 1; domainl_IP2. When circumventing IP refers to the requirement to return IP, it does not return the same IP, and only returns other results. After the deduplication, the parsing results are merged, that is, the parsing results of the same domain name from different routes or obtained through different ways are merged and classified. In the process of the DNS server selecting the domain name resolution result and returning it to the mobile terminal browser, the mobile terminal browser may perform the domain name and domain name resolution result according to the domain name resolution result. The utility (that is, whether the domain name resolution is often wrong) and the operator from which the domain name resolution result is derived determines the domain name resolution result and returns the result to the mobile terminal browser. Preferably, the cache server group in the embodiment of the present invention is a Bind (Berkeley Internet Name Daemon) cache server group. Bind is a commonly used DNS server software for the Internet. The Bind cache server also uses Bind as the DNS server for the server software. In order to describe the processing of the web interface on the server side in detail, the processing procedure of the web interface in the embodiment of the present invention is described in more detail below by taking the data processing flow shown in FIG. 2 as an example. As shown in FIG. 2, first, the mobile terminal browser issues a domain name resolution request S210 in the post mode of http. As an example of the present invention, the mobile terminal browser simultaneously issues a plurality of domain name resolution requests. For example: www.uc.cn_61.144.131.222; www.sina.cn_61.145.ll ll ll;

After receiving the domain name resolution request sent by the mobile terminal browser, the DNS server splits the requested content into a separate request for each domain name, as shown in step S220. For example, the above request is split into: www.uc.cn_61.144.131.222 and www.sina.cn_61.145.111.111.

The DNS server splits the request content of the mobile terminal browser and enters the loop query process. First, in step S230, the DNS server uses the domain name that the mobile terminal browser requests to parse as a key, and queries the cache pool of the DNS server whether there is a domain name resolution result that matches the domain name requested to be resolved. In an example of the present invention, the domain name that the mobile terminal browser requests to resolve is www.uc.com, and the DNS server first queries the cache database of itself with the matching domain name resolution result by using www.uc.com as a key. If not, the process goes to step S240, the jsp module is called, and then in S250, it is queried whether there is a matching domain name resolution result in the DNS database. After the DNS server queries the cache or the DNS database, if the cache database or the DNS database has a domain name resolution result that matches the requested domain name, the DNS server takes the domain name resolution result and temporarily stores it. If the DNS server does not query the domain name resolution result matching the requested domain name from the cache database or the DNS database, proceed to step S260 to initiate a query request to the public network DNS through the Bind cache server group, and pass the geographical matching process. The query result is saved in the cache library; if the public network DNS still cannot find the balance result matching the requested domain name, the failure result S270 is returned, otherwise the success result S280 is returned. The query request and the receiving record are sent to the public network DNS by calling the Bind cache server group, and multiple query results are obtained, that is, the analysis result on the different lines under one domain name is obtained. Each Bind cache server initiates a query to the public network DNS through a carrier's line in the area. In a specific embodiment of the present invention, the Bind cache server group initiates query requests through the Bind cache server group in four places of Guangdong, Shanghai, Beijing, and Chengdu, respectively, wherein each place has three Bind cache servers, and these three The Bind cache servers are responsible for the queries of the three major operators of Telecom, China Unicom and Mobile. In this query, there are 12 queries in the Bind cache server group, and there may be multiple ips in each result. These ips are usually used by the website of the target domain name for DNS polling to achieve load balancing.

The Bind cache server group sends the queried multiple domain name resolution results to the DNS server. The DNS server stores the received domain name resolution result in the DNS server's cache or DNS database. The DNS server sorts the received domain name resolution results into the cache pool or DNS database of the DNS server according to the query location and the operator classification. In a specific implementation of the present invention, the region matching process includes: matching the IP of the mobile terminal browser with the regional comparison table and matching the IMEI of the mobile terminal browser with the operator comparison table to obtain the domain name requested by the mobile terminal browser to be resolved. Territory and affiliated carrier. Because the website of the target domain name is used for load balancing, multiple IP addresses are used for DNS polling. Therefore, there may be multiple IP addresses corresponding to the domain name that is queried by a route in a region. After receiving the returned results, the DNS server first summarizes the results returned by the self-built Bind server group and the domain name resolution results recorded in the cache and DNS libraries, and then de-duplicates the results. That is, the result of the same IP under the same domain name in the analysis result is merged into one result, and the availability of the domain and domain name resolution result of the DNS server through the domain name resolution result (that is, whether the domain name resolution is frequently wrong) and the source of the domain name resolution result are further obtained. The operator determines the domain name resolution result and returns the result to the mobile terminal browser, step S280. Through the query of the Bind cache server group, the query of multiple records of a single domain name can be realized, that is, the parsing result on different lines can be queried simultaneously, so that even if one of the lines is not queried, it can be parsed by other line queries. result. A program for executing the TCP protocol-based mobile Internet domain name resolution method of the embodiment of the present invention may be stored in a computer readable storage medium. Accordingly, an embodiment of the present invention further provides a computer readable storage medium storing a program for performing a TCP Internet-based mobile Internet domain name resolution method according to an embodiment of the present invention. In addition, the mobile terminal of the present invention may be various handheld terminal devices, such as a mobile phone, a personal digital assistant (PDA), etc., and thus the scope of protection of the present invention should not be limited to a particular type of mobile terminal. Furthermore, the method according to the invention can also be implemented as a computer program executed by a CPU. When the computer program is executed by the CPU, the above-described functions defined in the method of the present invention are performed. Furthermore, the method steps and system units described above may also be implemented with a controller and a computer readable storage device for storing a computer program that causes the controller to implement the steps or unit functions described above. Moreover, it should be understood that a computer readable storage device (eg, a memory) described herein can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. By way of example and not limitation, non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash. Memory. Volatile memory can include random access memory (RAM), which can act as external cache memory. By way of example and not limitation, RAM can be obtained in a variety of forms, such as synchronous RAM (DRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), Storage devices of the synchronous link DRAM (SLDRAM) and direct Rambus RAM (DRRAM) ₀ aspects are intended to comprise, without being limited to, these and other suitable types of memory. The various exemplary logical blocks, units, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, units, circuits, and steps have been described. Whether such functionality is implemented as software or as hardware depends on the particular application and design constraints imposed on the overall system. A person skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions should not be construed as causing a departure from the scope of the invention. The various exemplary logical blocks, units, and circuits described in connection with the disclosure herein can be implemented or executed with the following components designed to perform the functions described herein: general purpose processor, digital signal processor (DSP), dedicated An integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. The steps of a method or algorithm described in connection with the disclosure herein can be <RTI ID=0.0>> The software unit can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, such that the processor can read information from or write information to the storage medium. In an alternative, the storage medium can be integrated with a processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in the user terminal. In an alternative, the processor and the storage medium may reside as a discrete component in the user terminal. In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer. By way of example and not limitation, the computer readable medium may comprise RAM, ROM, EEPROM CD-ROM or other optical disk storage device, disk storage device or other magnetic storage device, or may be used for carrying or storing the form as an instruction or The required program code of the data structure and any other medium that can be accessed by a general purpose or special purpose computer or a general purpose or special purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology such as infrared, radio, and microwave to send software from a website, server, or other remote source, the coaxial cable Cables, fiber optic cables, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are all included in the definition of media. As used herein, a magnetic disk and an optical disk include a compact disk (CD), a laser disk, an optical disk, a digital versatile disk (DVD), a floppy disk, a Blu-ray disk, in which a disk generally reproduces data magnetically, and an optical disk optically reproduces data using a laser. . Combinations of the above should also be included within the scope of computer readable media. While the foregoing disclosure shows exemplary embodiments of the present invention, it should be understood that various changes and modifications may be made without departing from the scope of the invention. The functions, steps and/or actions of the method claims according to the embodiments of the invention described herein are not required to be performed in any particular order. In addition, although elements of the invention may be described or claimed in the form of an individual, many are contemplated, unless explicitly limited to the singular. Corresponding to the above method, the embodiment of the present invention further provides a mobile internet DNS server based on the TCP protocol, and FIG. 3 shows a block schematic diagram of a mobile internet DNS server based on the TCP protocol according to an embodiment of the invention. As shown in FIG. 3, the mobile internet DNS server 300 based on the TCP protocol provided by the embodiment of the present invention includes a domain name receiving unit 310, a determining unit 320, an analysis result obtaining unit 330, an analysis result receiving unit 340, and an analysis result returning unit 350. The domain name receiving unit 310 is configured to receive, by the DNS server, a domain name resolution request sent by the mobile terminal browser through the TCP protocol, where the DNS server is a DNS server in the mobile internet based on the TCP; the determining unit 320 is configured to determine the cache of the DNS server. The domain name resolution result is not matched with the domain name in the database or the DNS database; the parsing result obtaining unit 330 is configured to initiate a domain name resolution request to the Bind cache server group of the at least one region, where the Bind cache server group operates through different regions. The route of the quotient initiates a domain name resolution request to the public network DNS; the parsing result receiving unit 340 is configured to receive, by the DNS server, the domain name resolution result returned by the public network DNS sent by the Bind cache server group; the parsing result returning unit 350 is configured to select a domain name by the DNS server. The parsing result is returned to the mobile terminal browser. The determining unit 320 is further configured to determine a domain name parsing result that matches the domain name in the cache of the DNS server or the DNS database, and then the parsing result returning unit 350 is used to select the domain name parsing result in the domain name parsing result, and return to the mobile Terminal browser. In the parsing result obtaining unit 330, the Bind cache server group is composed of a plurality of Bind cache servers, and each Bind cache server obtains a domain name parsing result from a public network DNS server through a line of an operator in the area. In addition, the DNS server further includes a storage unit (not shown) for the DNS server to classify the received domain name resolution result by the geographical matching process, and store the domain name resolution result in the DNS server cache or DNS. In the database. The TCP-based mobile Internet DNS server and the parsing method thereof provided by the embodiment of the present invention, by designing a DNS server in the mobile Internet based on the TCP protocol, changing the original UDP protocol to the TCP protocol, and ensuring the link through the TCP protocol The mechanism realizes that the DNS server is not affected by the fluctuation of the mobile network environment, and initiates a standard DNS query through multiple sets of self-built Bind cache servers in multiple regions to implement a single domain name multi-record query, and can simultaneously query a domain name under different lines. The result of the analysis is to avoid the defect that the traditional DNS server can only return one line result, thereby improving the availability and stability of the DNS server during web browsing. A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the above-mentioned unit may refer to the corresponding process in the foregoing method embodiment, and details are not described herein again. Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention. The mobile Internet domain name resolution method based on the TCP protocol and the DNS server according to an embodiment of the present invention are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that the above-mentioned TCP protocol-based mobile Internet domain name resolution method and DNS server proposed by the present invention can also be variously modified without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the content of the appended claims.

Claims

A request for rights, a method for analyzing a domain name of a mobile Internet based on a TCP protocol, comprising:

The DNS server receives the domain name resolution request sent by the mobile terminal browser through the TCP protocol; the DNS server determines that the domain name resolution result does not match the domain name resolution request, and initiates a domain name resolution request to the cache server group of the at least one region;

Receiving, by the DNS server, a domain name resolution result returned by the public network DNS sent by the cache server group;

The DNS server selects a domain name resolution result and returns it to the mobile terminal browser. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein the DNS server determines that the domain name resolution result that does not match the domain name resolution request comprises: the DNS server determining the DNS There is no domain name resolution result matching the domain name in the server's cache or DNS database. The method for analyzing a mobile Internet domain name based on a TCP protocol according to claim 1, wherein the DNS server is a DNS server in a TCP-based mobile internet. The method for analyzing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein the DNS server determines that the domain name resolution result does not match the domain name resolution request, and then the cache server is configured to at least one region. After the group initiates the domain name resolution request, the method further includes:

The cache server group initiates a domain name resolution request to the public network DNS through routes of different operators in the area. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein after the DNS server receives the domain name resolution request sent by the mobile terminal browser through the TCP protocol, the method further includes: determining the DNS The cached database or the DNS database of the server has a domain name resolution result matching the domain name, and then the domain name resolution result is selected in the domain name resolution result and returned to the mobile terminal browser. The method for analyzing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein the cache server group is composed of a plurality of cache servers, and each cache server passes a line of an operator of the area. The public network DNS server obtains the domain name resolution result. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein after the DNS server receives the domain name resolution result returned by the public network DNS sent by the cache server group, The method includes: the DNS server stores the received domain name resolution result in a cache pool or a DNS database of the DNS server. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 7, wherein the DNS server classifies the received domain name resolution result in a cache pool or a location of the DNS server by a region matching process. In the DNS database. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein in the process of the DNS server selecting the domain name resolution result and returning to the browser of the mobile terminal, The domain of the source of the analysis result, the availability of the domain name resolution result, and the operator from which the domain name resolution result is derived, the domain name resolution result is selected and returned to the mobile terminal browser. The method for parsing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein the DNS server determines that the domain name resolution result does not match the domain name resolution request, and the DNS server first determines the cache. Whether there is a domain name resolution result in the library that matches the domain name requested by the domain name resolution request,

If the DNS cache library does not have a domain name resolution result that matches the domain name requested by the domain name resolution request, the DNS server initiates a query to the DNS database to determine whether the domain name resolution request is in the DNS database. The parsing result of the domain name requested to be matched, wherein if the DNS database does not have a parsing result matching the domain name requested by the domain name resolution request, the DNS server determines that the domain name resolution request is not Match the results of the domain name resolution. The method for analyzing a mobile Internet domain name based on the TCP protocol according to claim 1, wherein the cache server group is a Bind cache server group. A mobile internet DNS server based on the TCP protocol, which is characterized by comprising:

a domain name receiving unit, configured to receive a domain name resolution request sent by a mobile terminal browser through a TCP protocol;

a determining unit, configured to determine that the domain name resolution result does not match the domain name resolution request; and the parsing result obtaining unit is configured to initiate a domain name resolution request to the cache server group of the at least one region; An analysis result receiving unit, configured to receive a domain name resolution result returned by the public network DNS sent by the cache server group; and

The parsing result returning unit is configured to select a domain name parsing result and return it to the mobile terminal browser. The mobile internet DNS server based on the TCP protocol according to claim 12, wherein the DNS server determines that the domain name resolution result that does not match the domain name resolution request comprises: the DNS server determining the DNS server There is no domain name resolution result matching the domain name in the cache library or the DNS database. The mobile internet DNS server based on the TCP protocol according to claim 12, wherein the DNS server is a DNS server in a mobile network based on TCP, and the DNS server determines that there is no request for the domain name resolution After the domain name resolution request is sent to the cache server group of the at least one region, the method further includes:

The cache server group initiates a domain name resolution request to the public network DNS through routes of different operators in the area. The mobile internet DNS server based on the TCP protocol according to claim 12, wherein the determining unit is further configured to determine a domain name resolution result that matches the domain name in a cache or a DNS database of the DNS server. And then, by using the parsing result returning unit, the domain name parsing result is selected in the domain name parsing result, and returned to the mobile terminal browser. The mobile internet DNS server based on the TCP protocol of claim 12, wherein the cache server group is composed of a plurality of cache servers, and each cache server passes the line of an operator of the area to the public The network DNS server obtains the domain name resolution result, and the cache server group is a Bind cache server group. The mobile internet DNS server based on the TCP protocol of claim 12, further comprising:

And a storage unit, configured to store, by the DNS server, the received domain name resolution result by the geographical matching process, and store the received domain name resolution result in the cache pool of the DNS server or the DNS database. A computer readable medium having processor-executable program code, wherein, when executed, the program code causes a DNS server to perform the steps of:

Receiving a domain name resolution request sent by the mobile terminal browser through the TCP protocol; Determining a domain name resolution result that does not match the domain name resolution request, and initiating a domain name resolution request to the cache server group of the at least one region;

Receiving, by the cache server group, a domain name resolution result returned by the public network DNS; and

The domain name resolution result is selected and returned to the mobile terminal browser. A computer program, characterized in that it is used to perform the following steps:

Receiving a domain name resolution request sent by the mobile terminal browser through the TCP protocol;

Determining that the domain name resolution result does not match the domain name resolution request, and initiating a domain name resolution request to the cache server group of the at least one region;

The domain name resolution result is selected and returned to the mobile terminal browser.