CN104580542A - Intelligent analysis method of DNS system - Google Patents
Intelligent analysis method of DNS system Download PDFInfo
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- CN104580542A CN104580542A CN201310476534.7A CN201310476534A CN104580542A CN 104580542 A CN104580542 A CN 104580542A CN 201310476534 A CN201310476534 A CN 201310476534A CN 104580542 A CN104580542 A CN 104580542A
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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]
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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
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses an intelligent analysis method of a DNS system. The intelligent analysis method comprises the steps that an IP information base is set in a DNS, and IP information for set regions is recorded in the IP information base; an Internet information table is set, weights among different regions are listed in detail according to the distribution of all major core routing nodes and geographical position situations of all the regions, and the larger/smaller the weights are, the larger the network distance is; a target IP address record serving as a parameter is added for each domain name, in the intelligent DNS, each domain name possesses a plurality of CDN node IP address and meanwhile possesses a target IP address record; the intelligent DNS receives a DNS analysis request from a user, obtains a CND node IP address where the weight is the smallest or the largest, and feeds back the IP address to the user. The intelligent analysis method can obviously improve the analysis intelligent level during the application of the intelligent DNS to CDN dynamic acceleration, and improve the efficiency of CDN dynamic acceleration and user experience.
Description
Technical field
The invention belongs to technical field of network communication, relate to a kind of DNS system, particularly relate to a kind of intelligently parsing method of DNS system.
Background technology
DNS is the abbreviation of domain name system (Domain Name System), it is a kernel service of internet, it is as a distributed data base that domain name and IP address can be mapped mutually, can convert domain name to IP address, this process domain name being converted to IP address is called as domain name mapping.Make people can conveniently by domain name access the Internet, and without the need to remembeing the IP address of uninteresting difficulty note.
Common DNS is usually only responsible for user and parses IP record, and does not go to judge that user comes wherefrom, and all users can be caused so all can only to be resolved on fixing IP address.
Intelligent DNS can judge a user's source, and makes some intelligentized process, then the IP after intellectual determination is returned to user.Such as, certain website has multiple servers to be distributed in zones of different, and intelligent DNS can the position of automatic decision user, then returns a best server ip intelligently, thus improves the experience that user accesses this website.
Intelligent DNS is widely used in (as shown in Figure 1) among CDN system, and the full name of CDN is ContentDelivery Network, i.e. content distributing network.Its basic ideas are one deck intelligent virtual networks on existing Internet basic formed by placing node server everywhere at network, thus avoid speed bottle-neck possible on the Internet and unstable network link, make content delivery sooner, more stable.
For CDN provides the intelligent DNS of service, can according to the source of user, for user selects nearest, best CDN node, such as: Jiangsu Telecom user can be it and distributes Jiangsu Telecom CDN node, if there is no Jiangsu Telecom CDN node, can be it and distribute the CDN node of closing on provinces and cities' telecommunications in Zhejiang, Shandong, Anhui, Shanghai etc.
If CDN system only provides acceleration to website static content, as long as intelligent DNS distributes to the node of the same province of user or neighbouring province, just good acceleration effect can be reached.If but CDN provides acceleration to dynamic content, just there is certain defect in this intelligent DNS.
CDN system is accelerated dynamic content, and CDN node only plays the effect of forwarding, and dynamic content must from source station Real-time Obtaining, and can not be loaded previously into CDN node and keep in.Problem is: CDN node distributes very wide usually, and the position of source station is fixing.Each CDN node is large to the network distance difference of source station, and CDN node also has very big-difference certainly to the speed of source station.Under normal conditions, but with regard to user to CDN node distance, the CDN node that multiple speed is suitable can be there is, such as: a Hu ' nan Telecommunication user (if there is no the words of Hu ' nan Telecommunication CDN node), its speed to the CDN node of neighbouring province (Guangdong, Hubei, Jiangxi Telecom) is that difference is little, but its neighbouring province CDN node may deposit larger difference to the speed of source station (position according to source station).In this case, traditional intelligent DNS, because have ignored the positional factor of source station, even can the mode with poll be adopted to distribute in possible several CDN node, must cause user can not obtain best CDN node like this.
In CDN system because user access target (i.e. Source Site) be hidden in CDN node after, if do not consider the position of target itself, for CDN dynamically accelerates, user can not obtain real best CDN node.
In view of this, nowadays in the urgent need to designing a kind of analytic method of new DNS system, to overcome the above-mentioned defect of existing analytic method.
Summary of the invention
Technical problem to be solved by this invention is: a kind of intelligently parsing method providing DNS system, can significantly improve the intelligence degree of parsing, improves the efficiency that CDN dynamically accelerates, improves Consumer's Experience.
In addition, the present invention also provides a kind of content distribution network system, can significantly improve the intelligence degree of parsing, improves the efficiency that CDN dynamically accelerates, improves Consumer's Experience.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
An intelligently parsing method for DNS system, described control method specifically comprises the steps:
In intelligent DNS, arrange IP information bank, include the complete IP information of setting regions in IP information bank, complete IP information comprises country, province, city, operator;
Arrange internet information table, list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights show that more greatly network distance is far away;
For each domain name increases target ip address record as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
After intelligent DNS receives the dns resolution request of user, by inquiry IP information bank, obtain the IP information of user, i.e. the IP address of user's local dns; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum; If still have multiple CDN node IP address, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
An intelligently parsing method for DNS system, described control method specifically comprises the steps:
IP information bank is set in intelligent DNS, in IP information bank, includes the IP information of setting regions;
Arrange internet information table, list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights are larger/little shows that network distance is far away;
For each domain name increases target ip address record as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
Receive the dns resolution request of user at intelligent DNS after, by inquiry IP information bank, obtain the IP information of user; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum/large, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum/large, and this IP address is fed back to user.
As a preferred embodiment of the present invention, if still have multiple CDN node IP address after the comparison of second time internet information, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
As a preferred embodiment of the present invention, the IP information of including in described IP information bank comprises country, province, city, operator.
Beneficial effect of the present invention is: the intelligently parsing method of DNS system that the present invention proposes, and in the application dynamically accelerated at CDN, can significantly improve the intelligence degree of parsing, improve the efficiency that CDN dynamically accelerates, improve Consumer's Experience for intelligent DNS.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the CDN system containing intelligent DNS.
Fig. 2 is the flow chart of the intelligently parsing method of DNS system of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 2, present invention is disclosed a kind of intelligently parsing method of DNS system, described analytic method specifically comprises the steps:
[step S1] arranges IP information bank in intelligent DNS, and include the complete IP information of setting regions in IP information bank, complete IP information comprises country, province, city, operator;
[step S2] arranges internet information table, and list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights show that more greatly network distance is far away;
[step S3], for each domain name increase target ip address record is as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
[step S4], after intelligent DNS receives the dns resolution request of user, by inquiry IP information bank, obtains the IP information of user, i.e. the IP address of user's local dns; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum; If still have multiple CDN node IP address, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
Embodiment two
The present embodiment discloses a kind of intelligently parsing method of DNS system, and described analytic method specifically comprises the steps (part steps adjustable sequencing):
IP information bank is set in intelligent DNS, in IP information bank, includes the IP information of setting regions;
Arrange internet information table, list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights larger (or less) show that network distance is far away;
For each domain name increases target ip address record as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
Receive the dns resolution request of user at intelligent DNS after, by inquiry IP information bank, obtain the IP information of user, then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, the CDN node IP address obtaining weights minimum (or maximum) (obtains the CDN node IP address that weights are minimum, corresponding above-mentioned " weights show that more greatly network distance is far away ", obtain maximum CDN node IP address, corresponding above-mentioned " weights are less shows that network distance is far away ", lower same), if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain a CDN node IP address of weights minimum (or maximum), and this IP address is fed back to user.If still have multiple CDN node IP address after the comparison of second time internet information, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
The present invention also discloses a kind of intelligently parsing system of DNS system, and described system comprises: IP information bank arranges module, internet information table arranges module, parameter adds module, intelligently parsing module.
IP information bank arranges module in order to arrange IP information bank in intelligent DNS, includes the IP information of setting regions in IP information bank.
Internet information table arranges module in order to list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, and weights are larger/little shows that network distance is far away.
Parameter adds module with thinking that each domain name increases target ip address record as parameter, and in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously.
Intelligently parsing module in order to receive user at intelligent DNS dns resolution request after, by inquiry IP information bank, obtain the IP information of user; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum/large, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum/large, and this IP address is fed back to user.If still have multiple CDN node IP address after the comparison of second time internet information, described intelligently parsing module is then followed principle that is random or poll and is chosen a CDN node IP address, and this IP address is fed back to user.
In sum, the intelligently parsing system and method for DNS system that the present invention proposes, in the application dynamically accelerated at CDN, can significantly improve the intelligence degree of parsing, improve the efficiency that CDN dynamically accelerates, improve Consumer's Experience for intelligent DNS.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (4)
1. an intelligently parsing method for DNS system, is characterized in that, described analytic method specifically comprises the steps:
In intelligent DNS, arrange IP information bank, include the complete IP information of setting regions in IP information bank, complete IP information comprises country, province, city, operator;
Arrange internet information table, list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights show that more greatly network distance is far away;
For each domain name increases target ip address record as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
After intelligent DNS receives the dns resolution request of user, by inquiry IP information bank, obtain the IP information of user, i.e. the IP address of user's local dns; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum; If still have multiple CDN node IP address, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
2. an intelligently parsing method for DNS system, is characterized in that, described analytic method specifically comprises the steps:
IP information bank is set in intelligent DNS, in IP information bank, includes the IP information of setting regions;
Arrange internet information table, list the weights between zones of different in detail according to the distribution of each large core routing node in the Internet and the geographical location circumstances in each region, weights are larger/little shows that network distance is far away;
For each domain name increases target ip address record as parameter, in intelligent DNS, each domain name has multiple CDN node IP address respectively, has a target ip address record simultaneously;
Receive the dns resolution request of user at intelligent DNS after, by inquiry IP information bank, obtain the IP information of user; Then IP information corresponding with CDN node IP address for the IP information of user is carried out inquiry comparison by internet information table, obtain the CDN node IP address that weights are minimum/large, if obtain the CDN node IP address that multiple weights are identical, then to first time Query Result multiple CDN node IP addresses together with described target ip address record carry out second time internet information table inquiry comparison, obtain the CDN node IP address that weights are minimum/large, and this IP address is fed back to user.
3. the intelligently parsing method of DNS system according to claim 2, is characterized in that:
If still have multiple CDN node IP address after the comparison of second time internet information, then follow principle that is random or poll and choose a CDN node IP address, and this IP address is fed back to user.
4. the intelligently parsing method of DNS system according to claim 2, is characterized in that:
The IP information of including in described IP information bank comprises country, province, city, operator.
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Cited By (8)
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| CN104853004A (en) * | 2015-05-26 | 2015-08-19 | 湖南傻蛋科技有限公司 | Distributed intelligent resolution method for domain name |
| CN105516391A (en) * | 2015-12-25 | 2016-04-20 | 互联网域名系统北京市工程研究中心有限公司 | CNAME-based DNS (domain name system) domain name resolution method |
| CN106790530A (en) * | 2016-12-21 | 2017-05-31 | 北京云端智度科技有限公司 | The tracking of domain name service and polymerization |
| CN107438115A (en) * | 2017-09-11 | 2017-12-05 | 深圳市茁壮网络股份有限公司 | A kind of domain name analytic method, apparatus and system |
| CN108337271A (en) * | 2017-01-17 | 2018-07-27 | 北京云端智度科技有限公司 | A method of promoting DNS security and performance |
| CN109787798A (en) * | 2017-11-14 | 2019-05-21 | 北京星河星云信息技术有限公司 | A kind of cloud IP accelerates network system, user's cloud IP acceleration request and response method |
| CN109905496A (en) * | 2019-02-26 | 2019-06-18 | 上海浪潮云计算服务有限公司 | A kind of DNS intelligent dispatching method based on subscriber policy |
| CN114143332A (en) * | 2021-11-03 | 2022-03-04 | 阿里巴巴（中国）有限公司 | Content delivery network CDN-based processing method, electronic device and medium |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853004A (en) * | 2015-05-26 | 2015-08-19 | 湖南傻蛋科技有限公司 | Distributed intelligent resolution method for domain name |
| CN104853004B (en) * | 2015-05-26 | 2019-08-13 | 湖南安数网络有限公司 | A kind of distributed intelligence analytic method of domain name |
| CN105516391A (en) * | 2015-12-25 | 2016-04-20 | 互联网域名系统北京市工程研究中心有限公司 | CNAME-based DNS (domain name system) domain name resolution method |
| CN105516391B (en) * | 2015-12-25 | 2018-12-21 | 互联网域名系统北京市工程研究中心有限公司 | A kind of DNS name resolution method based on CNAME |
| CN106790530A (en) * | 2016-12-21 | 2017-05-31 | 北京云端智度科技有限公司 | The tracking of domain name service and polymerization |
| CN108337271A (en) * | 2017-01-17 | 2018-07-27 | 北京云端智度科技有限公司 | A method of promoting DNS security and performance |
| CN107438115A (en) * | 2017-09-11 | 2017-12-05 | 深圳市茁壮网络股份有限公司 | A kind of domain name analytic method, apparatus and system |
| CN109787798A (en) * | 2017-11-14 | 2019-05-21 | 北京星河星云信息技术有限公司 | A kind of cloud IP accelerates network system, user's cloud IP acceleration request and response method |
| CN109905496A (en) * | 2019-02-26 | 2019-06-18 | 上海浪潮云计算服务有限公司 | A kind of DNS intelligent dispatching method based on subscriber policy |
| CN114143332A (en) * | 2021-11-03 | 2022-03-04 | 阿里巴巴（中国）有限公司 | Content delivery network CDN-based processing method, electronic device and medium |
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