CN104519146A - Method and system for domain name service based on user position - Google Patents
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Abstract
Embodiments of the invention disclose a method and a system for domain name service based on user positions. The method comprises: a domain name service server receiving a domain name resolution request sent by a user terminal, wherein the request comprising a to-be-resolved domain name and user address information; inquiring whether an address and optimal resolution correlation chart comprises the to-be-resolved domain name; if not, generating a recursion domain name resolution request and sending the request to a next level domain name resolution server corresponding to the to-be-resolved domain name, wherein the recursion domain name resolution request comprising user address information and the to-be-resolved domain name; the next level domain name resolution server inquiring the address and optimal resolution correlation chart, obtaining a network distance optimal resolution address corresponding to the user address and the to-be-resolved domain name, using the network distance optimal resolution address as a resolution result to return to the domain name resolution server; and the domain name resolution server returning the resolution result to the user terminal. The method and the system can satisfy optimal resolution of the nearby station visited by a user, thereby improving DNS resolution speed, and improving business quality for users to visit the internet.
Description
Technical field
The present invention relates to the communication technology, especially a kind of method and system carrying out domain name resolution service based on customer location.
Background technology
In Internet protocol (IP) network, name server (Domain Name Server, DNS) node is an important ring, user needs to carry out domain name mapping by DNS, just can carry out the access of related web site, and the network site of DNS node may affect the service quality provided customer service, such as analysis result is not optimum may affect the speed that user opens webpage.
If user selects DNS node non-indigenous to carry out domain name mapping, or, due to local dns node failure need to carry out Backup service by other region DNS node time, just differ and ensure that the analysis result of other region DNS node can meet the requirement of user's site access nearby surely.
Content distributing network (Content Distribution Network, CDN) can realize the above-mentioned requirement meeting user's site access nearby by self multiple intelligent DNS technology.Such as, set up the list of relation between the source IP address of an ISSUER (initiating dns server or the user of inquiry) and the optimum parse addresses of network distance in advance, be called for short address and resolve relation table with optimum, return corresponding optimum analysis result according to ISSUER's source IP address.Such as, ISSUER is positioned at the analysis result that Guangdong then returns to CDN branch website, Guangdong.But under a lot of scene, user selects the DNS node carrying out domain name explanation may not to be local dns node but far-end DNS node, the DNS that such as Guangdong user sets itself carries out analysis service belongs to Shanghai D NS node, the dns resolution the possibility of result of institute's referral web site that then user obtains belongs to Shanghai network, the business experience of user has impact, the above-mentioned user of meeting nearby site access optimum resolve may be difficult to realize.
Summary of the invention
An embodiment of the present invention technical problem to be solved is: for the deficiency of existing non-local DNS node parses, a kind of method and system carrying out domain name resolution service based on customer location is provided, with meet user nearby site access optimum resolve, improve dns resolution speed, improve the quality of service that user accesses the Internet.
A kind of method of carrying out domain name resolution service based on customer location that the embodiment of the present invention provides, comprising:
Domain name resolution server receives the domain name mapping request that user terminal sends, and this domain name mapping request comprises domain name to be resolved and the station address information as the user terminal user of domain name mapping request source IP address;
Domain name resolution server is inquired about the address that prestores and is resolved in relation table whether comprise described domain name to be resolved with optimum, and described address and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses;
If address does not comprise described domain name to be resolved with optimum parsing in relation table, domain name resolution server generates recursive domain name analysis request Concurrency based on described domain name to be resolved and next stage domain name resolution server corresponding to described domain name to be resolved gives, and the request of described recursive domain name analysis comprises described station address information, as the domain name resolution server address of recursive domain name analysis request source IP address and described domain name to be resolved;
Next stage domain name resolution server is inquired about the address prestored and is resolved relation table with optimum, using described station address as source IP address, obtain the optimum parse addresses of the network distance corresponding with described station address and described domain name to be resolved as analysis result, and described analysis result is returned domain name resolution server;
Described analysis result is returned described user terminal by domain name resolution server.
In a specific embodiment of said method, domain name resolution server generates the request of recursive domain name analysis based on described domain name to be resolved and comprises:
Domain name resolution server is according to described domain name determination next stage domain name resolution server to be resolved;
Domain name resolution server generates domain name mapping request according to described domain name to be resolved, this domain name mapping request comprises described domain name to be resolved, the domain name resolution server address as source IP address and the next stage domain name resolution server address as destination address, and described station address is added in this domain name mapping request as extended field, generate the request of recursive domain name analysis.
In a specific embodiment of said method, described next stage domain name resolution server is specially ultimate authority domain name resolution server corresponding to described domain name to be resolved.
In a specific embodiment of said method, also comprise:
If relation table is resolved with optimum in address comprise described domain name to be resolved, domain name resolution server is based on described station address, obtain the optimum parse addresses of network distance corresponding to described domain name to be resolved as analysis result, and described analysis result is returned described user terminal.
A kind of system of carrying out domain name resolution service based on customer location that the embodiment of the present invention provides, comprising:
Domain name resolution server, resolves relation table for memory address with optimum, and described address and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses; And this domain name mapping request comprises domain name to be resolved and the station address information as the user terminal user of domain name mapping request source IP address; Inquire about the address prestored and resolve in relation table whether comprise described domain name to be resolved with optimum; If address does not comprise described domain name to be resolved with optimum parsing in relation table, generating recursive domain name analysis request Concurrency based on described domain name to be resolved next stage domain name resolution server corresponding to described domain name to be resolved gives, and the request of described recursive domain name analysis comprises described station address information, as the domain name resolution server address of recursive domain name analysis request source IP address and described domain name to be resolved; And receive the analysis result that described next stage domain name resolution server returns;
Next stage domain name resolution server, resolves relation table for memory address with optimum; And inquire address and optimum resolve relation table, using described station address as source IP address, obtain the optimum parse addresses of the network distance corresponding with described station address and described domain name to be resolved as analysis result, and described analysis result is returned domain name resolution server.
In a specific embodiment of said system, when domain name resolution server generates recursive domain name analysis request based on described domain name to be resolved, specifically according to described domain name determination next stage domain name resolution server to be resolved; And generate domain name mapping request according to described domain name to be resolved, this domain name mapping request comprises described domain name to be resolved, the domain name resolution server address as source IP address and the next stage domain name resolution server address as destination address, and described station address is added in this domain name mapping request as extended field, generate the request of recursive domain name analysis.
In a specific embodiment of said system, described next stage domain name resolution server is specially ultimate authority domain name resolution server corresponding to described domain name to be resolved.
In a specific embodiment of said system, domain name resolution server, also for address with optimum resolve relation table comprise described domain name to be resolved time, based on described station address, obtain the optimum parse addresses of network distance corresponding to described domain name to be resolved as analysis result, and described analysis result is returned described user terminal.
Based on the method and system carrying out domain name resolution service based on customer location that the above embodiment of the present invention provides, when domain name resolution server receives the domain name mapping request of user terminal transmission, if do not comprise domain name to be resolved in domain name mapping list, by in the request of station address information join domain name analysis, generate recursive domain name analysis request Concurrency and next stage domain name resolution server corresponding to domain name to be resolved give; Next stage domain name resolution server is inquired about the address prestored and is resolved relation table with optimum, resolve relation table using station address as source IP address from address and optimum and obtain the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned domain name resolution server, by domain name resolution server, analysis result is returned user terminal.The embodiment of the present invention is from the network site of the user terminal of initial initiated domain name analysis request, DNS is based on when doing recursive query by this domain name mapping request to DNS in CDN or other DNS node, the station address of user terminal is added the new domain name analysis request of this recursive query as an extended field, and the DNS finally resolved will realize optimum parsing according to this field.Compared with prior art, meet user nearby site access optimum resolve, improve dns resolution speed, thus improve the quality of service that user accesses the Internet.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
What form a part for specification drawings describes embodiments of the invention, and is used from explanation principle of the present invention together with description one.
With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:
Fig. 1 the present invention is based on the flow chart that customer location carries out a method embodiment of domain name resolution service.
Fig. 2 the present invention is based on the flow chart that customer location carries out a method embodiment of domain name resolution service.
Fig. 3 the present invention is based on the structural representation that customer location carries out a system embodiment of domain name resolution service.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 the present invention is based on the flow chart that customer location carries out a method embodiment of domain name resolution service.As shown in Figure 1, the method that this embodiment carries out domain name resolution service based on customer location comprises:
110, DNS receives the domain name mapping request that user terminal sends, and this domain name mapping request comprises the station address information of domain name to be resolved and user terminal user.
Station address is wherein domain name mapping request source IP address.
120, the domain name to be resolved whether comprised in domain name mapping request is resolved in relation table with optimum in the address that DNS query prestores.
Address wherein and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses.
If address does not comprise domain name to be resolved with optimum parsing in relation table, perform the operation of 130.If relation table is resolved with optimum in address comprise domain name to be resolved, do not perform the subsequent operation of the present embodiment, exemplarily can perform the operation of 160.
130, DNS generates recursive domain name analysis request Concurrency based on domain name to be resolved and next stage DNS corresponding to this domain name to be resolved gives, and this recursive domain name analysis request comprises station address information, as the dns address of recursive domain name analysis request source IP address and domain name to be resolved.
140, relation table is resolved with optimum in the address that next stage DNS query prestores, using station address as source IP address, obtain with station address and network distance optimum parse addresses corresponding to domain name to be resolved as analysis result from address and optimum relation table of resolving, and this analysis result is returned DNS.
Analysis result is returned user terminal by 150, DNS.
Afterwards, the subsequent operation of the present embodiment is not performed.
160, DNS, based on station address, obtains the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned user terminal.
The method of carrying out domain name resolution service based on customer location that the above embodiment of the present invention provides, when domain name resolution server receives the domain name mapping request of user terminal transmission, if address does not comprise domain name to be resolved with optimum parsing in relation table, by in the request of station address information join domain name analysis, generate recursive domain name analysis request Concurrency and next stage domain name resolution server corresponding to domain name to be resolved give; Next stage domain name resolution server is inquired about the address prestored and is resolved relation table with optimum, resolve relation table using station address as source IP address from address and optimum and obtain the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned domain name resolution server, by domain name resolution server, analysis result is returned user terminal.The embodiment of the present invention is from the network site of the user terminal of initial initiated domain name analysis request, DNS is based on when doing recursive query by this domain name mapping request to DNS in CDN or other DNS node, the station address of user terminal is added the new domain name analysis request of this recursive query as an extended field, and the DNS finally resolved will realize optimum parsing according to this field.Compared with prior art, meet user nearby site access optimum resolve, improve dns resolution speed, thus improve the quality of service that user accesses the Internet.
Exemplarily, the present invention is above-mentioned to be carried out in the embodiment of the method for domain name resolution service based on customer location, next stage DNS is specially ultimate authority DNS corresponding to domain name to be resolved.
Fig. 2 the present invention is based on the structural representation that customer location carries out a method embodiment of domain name resolution service.This embodiment is for a concrete example, and be further described the method that the present invention is based on customer location and carry out domain name resolution service, suppose in this embodiment that domain name to be resolved is a.b.com, station address is 202.1.1.1.As shown in Figure 2, this embodiment comprises:
210, user is by the request of user terminal selecting DNS node 1 sending domain name analysis, and requesting query domain name, such as, a.b.com, this domain name mapping request comprises the station address 202.1.1.1 information of domain name a.b.com to be resolved and user terminal user.
Wherein, station address 202.1.1.1 is the source IP address in domain name mapping request data package, and the object IP address in domain name mapping request data package is the address of DNS node 1.
220, DNS node 1 is inquired about the address prestored and is resolved in relation table with optimum the domain name a.b.com to be resolved whether comprised in domain name mapping request.
Address wherein and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses.
If address does not comprise domain name a.b.com to be resolved with optimum parsing in relation table, perform the operation of 230.If relation table is resolved with optimum in address comprise domain name a.b.com to be resolved, perform the operation of 270.
230, DNS node 1 determines according to domain name a.b.com to be resolved the ultimate authority DNS(b.com that next stage DNS is looked into domain name) node 2, domain name mapping request is generated according to domain name to be resolved, this domain name mapping request comprises domain name a.b.com to be resolved, the dns address as source IP address and the ultimate authority dns address as destination address, and station address 202.1.1.1 is added in this domain name mapping request as extended field, generate recursive domain name analysis request Concurrency and give ultimate authority DNS node 2.This extended field 202.1.1.1 will not change in query script.
Extended field in 240, ultimate authority DNS node 2 reading field name analysis requests, obtains the station address 202.1.1.1 of initiated domain name analysis request at first.
250, ultimate authority DNS node 2 is inquired about the address prestored and is resolved relation table with optimum, using the station address 202.1.1.1 of extended field as address with optimum source IP address of resolving in relation table, obtain the optimum parse addresses of the network distance corresponding with station address 202.1.1.1 and domain name a.b.com to be resolved, such as 202.1.2.2, as analysis result, and analysis result is returned DNS node 1.
Because this ultimate authority DNS node 2 belongs in the CDN of website (b.com) usually, CDN is revised accordingly on original intelligent DNS analytical capabilities basis, that is: the station address of extended field is compared as source IP address in the address set up in advance and optimum parsing in relation table, instead of compare in the address set up in advance and optimum parsing in relation table with the source IP address (herein for the IP address of DNS node 1) in domain name mapping request, therefore will obtain according to user's belonging network region and the optimum parse addresses of network distance returning this user to DNS node 1 as optimum analysis result.
This optimum analysis result of 202.1.2.2 is returned user terminal by 260, DNS node 1.
Afterwards, the subsequent operation of the present embodiment is not performed.
270, DNS, using station address as source IP address, obtains the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned user terminal.
In the embodiment of the present invention, recursive domain name analysis can be carried out by multistage DNS, for every one-level DNS, the function of DNS in the above embodiment of the present invention can be realized, added in the domain name mapping request of generation as extended field by station address and generate the request of recursive domain name analysis and send to next stage DNS, this extended field will not change in query script.
Fig. 3 the present invention is based on the structural representation that customer location carries out a system embodiment of domain name resolution service.The system that this embodiment carries out domain name resolution service based on customer location can be used in the present invention above-mentioned each method of carrying out domain name resolution service based on customer location.As shown in Figure 3, it comprises DNS and next stage DNS.Wherein:
DNS, resolves relation table for memory address with optimum, and this address and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses; And receiving the domain name mapping request of user terminal transmission, this domain name mapping request comprises domain name to be resolved and the station address information as the user terminal user of domain name mapping request source IP address; Inquire about the address prestored and resolve in relation table whether comprise domain name to be resolved with optimum; Generating recursive domain name analysis request Concurrency based on domain name to be resolved next stage DNS corresponding to this domain name to be resolved gives, and this recursive domain name analysis request comprises station address information, as the dns address of recursive domain name analysis request source IP address and domain name to be resolved; And the analysis result that reception next stage DNS returns.
Next stage DNS, resolves relation table for memory address with optimum; And inquire address and optimum resolves relation table, using station address as source IP address, obtain the network distance optimum parse addresses corresponding with station address and domain name to be resolved as analysis result, and analysis result is returned DNS.
The system of carrying out domain name resolution service based on customer location that the above embodiment of the present invention provides, when domain name resolution server receives the domain name mapping request of user terminal transmission, if address does not comprise domain name to be resolved with optimum parsing in relation table, by in the request of station address information join domain name analysis, generate recursive domain name analysis request Concurrency and next stage domain name resolution server corresponding to domain name to be resolved give; Next stage domain name resolution server is inquired about the address prestored and is resolved relation table with optimum, resolve relation table using station address as source IP address from address and optimum and obtain the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned domain name resolution server, by domain name resolution server, analysis result is returned user terminal.The embodiment of the present invention is from the network site of the user terminal of initial initiated domain name analysis request, DNS is based on when doing recursive query by this domain name mapping request to DNS in CDN or other DNS node, the station address of user terminal is added the new domain name analysis request of this recursive query as an extended field, and the DNS finally resolved will realize optimum parsing according to this field.Compared with prior art, meet user nearby site access optimum resolve, improve dns resolution speed, thus improve the quality of service that user accesses the Internet.
Exemplarily, the present invention is above-mentioned to be carried out in the system embodiment of domain name resolution service based on customer location, next stage DNS is specially ultimate authority DNS corresponding to domain name to be resolved.
Exemplarily, the present invention is above-mentioned to be carried out in the system embodiment of domain name resolution service based on customer location, when DNS generates recursive domain name analysis request based on domain name to be resolved, and specifically can according to domain name determination next stage DNS to be resolved; And generate domain name mapping request according to domain name to be resolved, this domain name mapping request comprises domain name to be resolved, the dns address as source IP address and the next stage dns address as destination address, and station address is added in this domain name mapping request as extended field, generate the request of recursive domain name analysis.
Carry out in another embodiment of system of domain name resolution service the present invention is based on customer location, DNS can also be used for address with optimum resolve relation table comprise domain name to be resolved time, based on station address, obtain the optimum parse addresses of network distance corresponding to domain name to be resolved as analysis result, and analysis result is returned user terminal.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.For system embodiment, because itself and embodiment of the method are substantially corresponding, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Method of the present invention, system may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The embodiment of the present invention has the following advantages relative to prior art tool:
In the prior art, CDN can realize optimum parsing according to the source address in DNS request bag by self intelligent DNS, if but the not local dns node that user selects under a lot of scene but far-end DNS node, optimum parsing is difficult to realize;
And in the embodiment of the present invention, station address is added recursive query DNS as extended field wrap, will the ultimate authority dns server of domain name to be resolved, the DNS of such as CDN be made, can read station address, thus realize the optimum analysis result under above-mentioned scene using this station address as source IP address.
Claims (8)
1. carry out a method for domain name resolution service based on customer location, it is characterized in that, comprising:
Domain name resolution server receives the domain name mapping request that user terminal sends, and this domain name mapping request comprises domain name to be resolved and the station address information as the user terminal user of domain name mapping request source IP address;
Domain name resolution server is inquired about the address that prestores and is resolved in relation table whether comprise described domain name to be resolved with optimum, and described address and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses;
If address does not comprise described domain name to be resolved with optimum parsing in relation table, domain name resolution server generates recursive domain name analysis request Concurrency based on described domain name to be resolved and next stage domain name resolution server corresponding to described domain name to be resolved gives, and the request of described recursive domain name analysis comprises described station address information, as the domain name resolution server address of recursive domain name analysis request source IP address and described domain name to be resolved;
Next stage domain name resolution server is inquired about the address prestored and is resolved relation table with optimum, using described station address as source IP address, obtain the optimum parse addresses of the network distance corresponding with described station address and described domain name to be resolved as analysis result, and described analysis result is returned domain name resolution server;
Described analysis result is returned described user terminal by domain name resolution server.
2. method according to claim 1, is characterized in that, domain name resolution server generates the request of recursive domain name analysis based on described domain name to be resolved and comprises:
Domain name resolution server is according to described domain name determination next stage domain name resolution server to be resolved;
Domain name resolution server generates domain name mapping request according to described domain name to be resolved, this domain name mapping request comprises described domain name to be resolved, the domain name resolution server address as source IP address and the next stage domain name resolution server address as destination address, and described station address is added in this domain name mapping request as extended field, generate the request of recursive domain name analysis.
3. method according to claim 2, is characterized in that, described next stage domain name resolution server is specially ultimate authority domain name resolution server corresponding to described domain name to be resolved.
4. the method according to claims 1 to 3 any one, is characterized in that, also comprises:
If relation table is resolved with optimum in address comprise described domain name to be resolved, domain name resolution server is based on described station address, obtain the optimum parse addresses of network distance corresponding to described domain name to be resolved as analysis result, and described analysis result is returned described user terminal.
5. carry out a system for domain name resolution service based on customer location, it is characterized in that, comprising:
Domain name resolution server, resolves relation table for memory address with optimum, and described address and optimum relation table of resolving comprise corresponding relation between domain name, source IP address and network distance optimum parse addresses; And this domain name mapping request comprises domain name to be resolved and the station address information as the user terminal user of domain name mapping request source IP address; Inquire about the address prestored and resolve in relation table whether comprise described domain name to be resolved with optimum; If address does not comprise described domain name to be resolved with optimum parsing in relation table, generating recursive domain name analysis request Concurrency based on described domain name to be resolved next stage domain name resolution server corresponding to described domain name to be resolved gives, and the request of described recursive domain name analysis comprises described station address information, as the domain name resolution server address of recursive domain name analysis request source IP address and described domain name to be resolved; And receive the analysis result that described next stage domain name resolution server returns;
Next stage domain name resolution server, resolves relation table for memory address with optimum; And inquire address and optimum resolve relation table, using described station address as source IP address, obtain the optimum parse addresses of the network distance corresponding with described station address and described domain name to be resolved as analysis result, and described analysis result is returned domain name resolution server.
6. system according to claim 5, is characterized in that, when domain name resolution server generates recursive domain name analysis request based on described domain name to be resolved, specifically according to described domain name determination next stage domain name resolution server to be resolved; And generate domain name mapping request according to described domain name to be resolved, this domain name mapping request comprises described domain name to be resolved, the domain name resolution server address as source IP address and the next stage domain name resolution server address as destination address, and described station address is added in this domain name mapping request as extended field, generate the request of recursive domain name analysis.
7. system according to claim 6, is characterized in that, described next stage domain name resolution server is specially ultimate authority domain name resolution server corresponding to described domain name to be resolved.
8. the system according to claim 5 to 7 any one, it is characterized in that, domain name resolution server, also for address with optimum resolve relation table comprise described domain name to be resolved time, based on described station address, obtain the optimum parse addresses of network distance corresponding to described domain name to be resolved as analysis result, and described analysis result is returned described user terminal.
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