CN105472051A - Method, device and system for improving domain name resolution reliability - Google Patents
Method, device and system for improving domain name resolution reliability Download PDFInfo
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- CN105472051A CN105472051A CN201410442848.XA CN201410442848A CN105472051A CN 105472051 A CN105472051 A CN 105472051A CN 201410442848 A CN201410442848 A CN 201410442848A CN 105472051 A CN105472051 A CN 105472051A
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Abstract
The invention discloses a method, device and system for improving domain name resolution reliability. The method is characterized by extracting domain name record information from a DNS server at a preset time interval by a monitor server, and selecting domain names needing to be subjected to service test and corresponding IP address information from the domain name record information by utilizing a preset domain name monitoring list to generate a monitor list; in the monitor list, carrying out simulation service test on the IP address associated with each domain name; deleting the IP addresses, the simulation service test of which fails so as to correct the monitor list conveniently; and sending the corrected monitor list to the DNS server, so that the DNS server can correct the IP address information of the corresponding domain names in the domain name record information by utilizing the corrected monitor list, thereby ensuring the domain name resolution result is service effective. By initiating service test for the application server corresponding to the corresponding domain names, and by correcting the domain name cache records in the DNS server according to the test result, the final user service reliability is improved.
Description
Technical field
The present invention relates to the communications field, particularly a kind of methods, devices and systems improving domain name mapping reliability.
Background technology
DNS (DomainNameSystem, domain name system) is a ring of network-critical, and user needs the domain name mapping by DNS, just can carry out the access of website, and current dns server only returns analysis result and do not do domain name addresses effectively to identify.
For Virtual network operator, not only return analysis result to user in some scenarios, also need to consider to factors such as destination server accessibility, validity, optimum parsings, decide to return specific parsing to user.
In real network, usually there is the unreachable or server error of the server of resolving, at IPv4 in IPv6 network transition, this problem is often occurred to the domain name mapping of IPV6, user is caused to obtain network service, therefore user may complain Virtual network operator, more difficultly in existing network solves the problem.
Summary of the invention
The embodiment of the present invention provides a kind of methods, devices and systems improving domain name mapping reliability.Initiate operational trials by the application server corresponding to associated dns name, according to the domain name caching record in test result amendment dns server, thus improve the service reliability of end user.
According to an aspect of the present invention, a kind of method improving domain name mapping reliability is provided, comprises:
Extract domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information;
Utilize the domain name monitoring list preset, select to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information;
In monitoring list, analog service test is carried out to the IP address be associated with each domain name;
Delete the IP address of analog service test crash, to revise monitoring list;
Monitoring list through revising being sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.
In one embodiment, delete the IP address of analog service test crash, to comprise the step that monitoring list is revised:
Delete the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
In one embodiment, described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.
In one embodiment, IP address information comprises IPv4 address information and/or IPv6 address information.
According to a further aspect in the invention, provide a kind of monitoring server improving domain name mapping reliability, comprise extraction unit, monitoring list generation unit, operational trials unit, amending unit and transmitting element, wherein:
Extraction unit, for extracting domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information;
Monitoring list generation unit, for utilizing the domain name monitoring list preset, selects to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information;
Operational trials unit, in monitoring list, carries out analog service test to the IP address be associated with each domain name;
Amending unit, for deleting the IP address of analog service test crash, to revise monitoring list;
Transmitting element, for the monitoring list through revising is sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.
In one embodiment, amending unit specifically deletes the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
In one embodiment, described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.
In one embodiment, IP address information comprises IPv4 address information and/or IPv6 address information.
According to a further aspect in the invention, a kind of system improving domain name mapping reliability is provided, comprises monitoring server and dns server, wherein:
Monitoring server is the monitoring server that above-mentioned any embodiment relates to;
Dns server, user, after receiving the watch-list through revising that monitoring server provides, utilizing the monitoring list through revising, revising the IP address information of associated dns name in domain name recorded information; Also for when receiving the inquiry of the domain name request that user terminal sends, the domain name that inquiry of the domain name request comprises is resolved, to inquire about the IP address information be associated with domain name in current domain name recorded information, and the IP address information inquired is sent to user terminal, thus guarantee that domain name mapping result is all that business is effective.
In one embodiment, dns server specifically inquires the IP address information quantity be associated with domain name when being greater than 1 in current domain name recorded information, selects preferred highest-ranking IP address information to send to user terminal in the IP address information inquired.
The present invention is by extracting domain name recorded information with predetermined time interval from dns server, utilize the domain name monitoring list preset, select to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information; In monitoring list, analog service test is carried out to the IP address be associated with each domain name; Delete the IP address of analog service test crash, to revise monitoring list; Monitoring list through revising being sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.Therefore, it is possible to improve the service reliability of end user.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram that the present invention improves a method embodiment of domain name mapping reliability.
Fig. 2 is the schematic diagram of a monitoring server of the present invention embodiment.
Fig. 3 is the schematic diagram that the present invention improves a system embodiment of domain name mapping reliability.
Fig. 4 is for implementing information interaction schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.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.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
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.
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 of authorizing 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 is the schematic diagram that the present invention improves a method embodiment of domain name mapping reliability.Preferably, the method step of the present embodiment can be performed by monitoring server.
Step 101, extract domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information.
Preferably, IP address information can comprise IPv4 address information and/or IPv6 address information.
Step 102, utilizes the domain name monitoring list preset, selects to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information.
Step 103, in monitoring list, carries out analog service test to the IP address be associated with each domain name.
Step 104, deletes the IP address of analog service test crash, to revise monitoring list.
Preferably, the IP address of above-mentioned deletion analog service test crash, to comprise the step that monitoring list is revised:
Delete the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
In one embodiment, described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.That is, network distance is nearer, and the priority level that analog service tests successful IP address is higher; Otherwise network distance is far away, the priority level that analog service tests successful IP address is lower.
Such as, the IP address be associated with domain name www.a.com has two, and wherein IP address 1 is in Guangzhou, and IP address 2 is in Harbin.For the user in Guangzhou, access IP address 1 is obviously more convenient.Therefore concerning the dns server being positioned at Guangzhou, monitoring server is under IP address 1 and IP address 2 are all in the effective situation of business, the priority level of IP address 1 is made to be higher than the priority level of IP address 2, thus as Guangzhou local user queries domain name www.a.com, IP address 1 preferentially can be supplied to user by dns server.
Step 105, sends to dns server by the monitoring list through revising, so that dns server utilizing the monitoring list through revising, revising, thus guarantee that domain name mapping result is all that business is effective to the IP address information of associated dns name in domain name recorded information.
Based on the method for the raising domain name mapping reliability that the above embodiment of the present invention provides, operational trials is initiated by the application server corresponding to associated dns name, according to the domain name caching record in test result amendment dns server, thus improve the service reliability of end user.
Fig. 2 is the schematic diagram of a monitoring server of the present invention embodiment.As shown in Figure 2, monitoring server can comprise extraction unit 201, monitoring list generation unit 202, operational trials unit 203, amending unit 204 and transmitting element 205.Wherein:
Extraction unit 201, for extracting domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information.
Preferably, IP address information comprises IPv4 address information and/or IPv6 address information.
Monitoring list generation unit 202, for utilizing the domain name monitoring list preset, selects to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information.
Operational trials unit 203, in monitoring list, carries out analog service test to the IP address be associated with each domain name.
Amending unit 204, for deleting the IP address of analog service test crash, to revise monitoring list.
Transmitting element 205, for the monitoring list through revising is sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.
Based on the monitoring server of the raising domain name mapping reliability that the above embodiment of the present invention provides, operational trials is initiated by the application server corresponding to associated dns name, according to the domain name caching record in test result amendment dns server, thus improve the service reliability of end user.
Preferential, amending unit 204 specifically deletes the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
Preferably, described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.
Fig. 3 is the schematic diagram that the present invention improves a system embodiment of domain name mapping reliability.As shown in Figure 3, this system can comprise monitoring server 301 and dns server 302.Wherein:
Monitoring server 301 is the monitoring server that any embodiment in Fig. 2 relates to.
Dns server 302, user, after receiving the watch-list through revising that monitoring server 301 provides, utilizing the monitoring list through revising, revising the IP address information of associated dns name in domain name recorded information; Also for when receiving the inquiry of the domain name request that user terminal sends, the domain name that inquiry of the domain name request comprises is resolved, to inquire about the IP address information be associated with domain name in current domain name recorded information, and the IP address information inquired is sent to user terminal, thus guarantee that domain name mapping result is all that business is effective.
Based on the system of the raising domain name mapping reliability that the above embodiment of the present invention provides, operational trials is initiated by the application server corresponding to associated dns name, according to the domain name caching record in test result amendment dns server, thus improve the service reliability of end user.
In one embodiment, dns server 302 specifically inquires the IP address information quantity be associated with domain name when being greater than 1 in current domain name recorded information, selects preferred highest-ranking IP address information to send to user terminal in the IP address information inquired.
Below by concrete example, the present invention will be described, as shown in Figure 4:
Step 401, monitoring server extracts domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information, and wherein IP address information can comprise IPv4 address information and/or IPv6 address information.
Step 402, monitoring server utilizes the domain name monitoring list preset, and selects to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information.
Step 403, in monitoring list, analog service test is carried out in the monitoring server pair IP address be associated with each domain name.
Step 404, monitoring server deletes the IP address of analog service test crash, and testing successful IP address for analog service carries out priority ordering simultaneously, to revise monitoring list.The priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
Step 405, the monitoring list through revising is sent to dns server by monitoring server.
Step 406, dns server utilizes the monitoring list through revising, and revises the IP address information of associated dns name in domain name recorded information.
Thus, can guarantee that the result that associated dns name is resolved is all that business is effective.
Step 407, user terminal sends domain name inquiry request to dns server.
Step 408, dns server, according to inquiry of the domain name request, is resolved relevant domain name.
Step 409, analysis result is sent to user terminal by dns server.
Wherein, if when to inquire the IP address information quantity be associated with domain name in current domain name recorded information be 1, then this IP address information is supplied to user terminal by dns server.
If inquire the IP address information quantity be associated with domain name to be greater than 1 in current domain name recorded information, namely there is multiple IP address to be associated with this domain name simultaneously, then dns server is in this multiple IP address, selects preferred highest-ranking IP address information to send to user terminal.
Step 410, user terminal, according to analysis result, accesses corresponding application server.
Compared with prior art, the advantage that the present invention has is:
In the prior art, dns server only directly returns analysis result, and does not monitor its service availability, thus cannot determine which IP address is that business is effective, and which IP address is that business is inaccessible, thus reduces Consumer's Experience.
And in the present invention, by user will be supplied to after the result optimizing after operational trials, substantially increase accuracy, validity and accuracy that user resolves, thus improve service reliability.Particularly in the process to IPv6 transition, application scenarios of the present invention can be more extensive.Such as, at present for various reasons, indivedual IPv6 analysis results that dns server obtains its business actual is also unavailable, then by the parsing intervention that the present invention carries out, avoid the application server that user's access cannot provide service.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
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.
Claims (10)
1. improve a method for domain name mapping reliability, it is characterized in that, comprising:
Extract domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information;
Utilize the domain name monitoring list preset, select to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information;
In monitoring list, analog service test is carried out to the IP address be associated with each domain name;
Delete the IP address of analog service test crash, to revise monitoring list;
Monitoring list through revising being sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.
2. method according to claim 1, is characterized in that,
Delete the IP address of analog service test crash, to comprise the step that monitoring list is revised:
Delete the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
3. method according to claim 2, is characterized in that,
Described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.
4. the method according to any one of claim 1-3, is characterized in that,
IP address information comprises IPv4 address information and/or IPv6 address information.
5. improve a monitoring server for domain name mapping reliability, it is characterized in that, comprise extraction unit, monitoring list generation unit, operational trials unit, amending unit and transmitting element, wherein:
Extraction unit, for extracting domain name recorded information with predetermined time interval from dns server, wherein domain name recorded information comprises domain-name information and corresponding IP address information;
Monitoring list generation unit, for utilizing the domain name monitoring list preset, selects to need to carry out the domain name of operational trials and corresponding IP address information, to generate monitoring list from domain name recorded information;
Operational trials unit, in monitoring list, carries out analog service test to the IP address be associated with each domain name;
Amending unit, for deleting the IP address of analog service test crash, to revise monitoring list;
Transmitting element, for the monitoring list through revising is sent to dns server, so that dns server utilizing the monitoring list through revising, the IP address information of associated dns name in domain name recorded information being revised, thus guarantees that domain name mapping result is all that business is effective.
6. monitoring server according to claim 5, is characterized in that,
Amending unit specifically deletes the IP address of analog service test crash, test successful IP address for analog service simultaneously, determine corresponding priority level, to revise monitoring list, the priority level that wherein said analog service tests successful IP address is tested successful IP address with described analog service and is associated with the network distance between dns server.
7. monitoring server according to claim 6, is characterized in that,
Described analog service tests the priority level of successful IP address, and the network distance that described analog service is tested between successful IP address and dns server is inversely proportional to.
8. the monitoring server according to any one of claim 5-7, is characterized in that,
IP address information comprises IPv4 address information and/or IPv6 address information.
9. improve a system for domain name mapping reliability, it is characterized in that, comprise monitoring server and dns server, wherein:
Monitoring server, the monitoring server related to any one of claim 5-8;
Dns server, user, after receiving the watch-list through revising that monitoring server provides, utilizing the monitoring list through revising, revising the IP address information of associated dns name in domain name recorded information; Also for when receiving the inquiry of the domain name request that user terminal sends, the domain name that inquiry of the domain name request comprises is resolved, to inquire about the IP address information be associated with domain name in current domain name recorded information, and the IP address information inquired is sent to user terminal, thus guarantee that domain name mapping result is all that business is effective.
10. system according to claim 9, is characterized in that,
Dns server specifically inquires the IP address information quantity be associated with domain name when being greater than 1 in current domain name recorded information, selects preferred highest-ranking IP address information to send to user terminal in the IP address information inquired.
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| CN201410442848.XA CN105472051A (en) | 2014-09-02 | 2014-09-02 | Method, device and system for improving domain name resolution reliability |
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| CN201410442848.XA CN105472051A (en) | 2014-09-02 | 2014-09-02 | Method, device and system for improving domain name resolution reliability |
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