CN108737586A - A kind of calamity of inquiry of the domain name service is for switching method and apparatus - Google Patents
A kind of calamity of inquiry of the domain name service is for switching method and apparatus Download PDFInfo
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- CN108737586A CN108737586A CN201710261128.7A CN201710261128A CN108737586A CN 108737586 A CN108737586 A CN 108737586A CN 201710261128 A CN201710261128 A CN 201710261128A CN 108737586 A CN108737586 A CN 108737586A
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- China
- Prior art keywords
- backup
- disaster recovery
- recovery device
- domain name
- master server
- Prior art date
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Classifications
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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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
Abstract
The invention discloses a kind of calamities of inquiry of the domain name service for switching method and apparatus, belongs to internet security technical field, method includes：Periodically monitor the service availability of master server；When the service availability for monitoring master server is less than preset value, the top level domain in asking the dns query message received parses, and obtains backup & disaster recovery device address corresponding with top level domain；According to backup & disaster recovery device address, the destination server that dns query message is asked is switched into backup & disaster recovery device, so that backup & disaster recovery device provides inquiry of the domain name service.The present invention switches to backup & disaster recovery device by the destination server for asking dns query message, so that backup & disaster recovery device provides inquiry of the domain name service, thereby reduce leads to the influence suffered by WHOIS service availabilities since the randomness and duration of WAN network congestion are indefinite.
Description
Technical field
The present invention relates to internet security technology, more particularly to a kind of calamity of inquiry of the domain name service is for switching method and dress
It sets.
Background technology
Whether WHOIS is to be registered for nslookup and the database of the details of registered domain name.Pass through
Just whether WHOIS can realize the inquiry to domain-name information, for example, domain name registration service mechanism, to confirm domain name data
It really is registered to domain name registration center, is often inquired by WHOIS；Many Internet users carry out Internet punchings for another example
When unrestrained, it is desirable to further appreciate that the details of domain name, at this moment can also be inquired by WHOIS.From the point of view of intuitive, WHOIS is exactly
It is linked to the search engine of dns database.The WHOIS information of each domain name/IP is preserved by corresponding management organization；Not same area
The WHOIS information of name suffix needs to different whois databases to inquire, such as the whois database of .com and the WHOIS of .edu
Database is just different.
Internet domain name system is responsible for and is coordinated to Internet Name and Number Assignment Agency (ICANN)
System, provides according to ICANN, and the addresss of service WHOIS of new general top level domain are necessary for whois.nic. { tld }, in the address
Registration office provides the inquiry service based on plain text agreement (RFC3912) on 43 ports, is registered on 80 ports of the address
Office provides the page interrogation function based on http protocol.
For domain name registration service mechanism and numerous Internet users, the availability and performance of inquiry of the domain name service are straight
It connects and affects its impression for using internet, meanwhile, SLA (Service Level Agreement, Service Level Agreement) is to domain
Also there are strict requirements for the Service Level Objective standard of name inquiry service, wherein whois Server, whois Web service availabilities
It is 99.9%.However, under conditions of using single node deployment architecture, gathered around if there is WAN network fluctuation or network
Plug, the network reachability of service arrangement node will be deteriorated, and WHOIS service availabilities can be caused drastically to decline.
Therefore, it exists in the prior art since the randomness and duration of WAN network congestion are indefinite, and WHOIS is caused to take
The problem of business availability is affected.
Invention content
In order to reduce influence of the random congestion of wide area network to WHOIS service availabilities, the present invention provides a kind of domain names to look into
The calamity of service is ask for switching method and apparatus.The technical solution is as follows：
In a first aspect, provide a kind of calamity of inquiry of the domain name service for switching method, the method includes：
Periodically monitor the service availability of master server；
When the service availability for monitoring the master server is less than preset value, the dns query message received is asked
Top level domain in asking is parsed, and backup & disaster recovery device address corresponding with the top level domain is obtained；
According to backup & disaster recovery device address, the destination server of domain name information inquiring request is switched into the calamity
Standby server, so that the backup & disaster recovery device provides inquiry of the domain name service.
With reference to first aspect, in the first possible implementation, the method further includes：
When the service availability for monitoring the master server is restored to the preset value, next domain-name information is looked into
The destination server for asking request switches back to the master server, so that the master server provides inquiry of the domain name service.
With reference to first aspect, in second of possible realization method, the service for periodically monitoring master server
Before availability step, the method further includes：
It is synchronized using the domain name registration information of the master server as Backup Data and copies to the backup & disaster recovery device.
Second of possible realization method with reference to first aspect, it is described by institute in the third possible realization method
The domain name registration information for stating master server synchronizes as Backup Data and copies to the backup & disaster recovery device and include：
According to the domain name registration information of the master server, index data is generated；
The index data is synchronized as the Backup Data and copies to the backup & disaster recovery device.
With reference to first aspect to the third any one possible realization method of first aspect, in the 4th kind of possible reality
It is described when the service availability for monitoring the master server is less than preset value in existing mode, to the domain-name information received
Top level domain in inquiry request is parsed, and is obtained backup & disaster recovery device address corresponding with the top level domain and is included：
According to the domain-name information entrained by domain name information inquiring request, the top level domain is determined；
Dns resolution is carried out to the top level domain, and corresponding with the top level domain according to the acquisition of dns resolution result
Backup & disaster recovery device address, described address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
Second aspect provides a kind of calamity of inquiry of the domain name service for switching device, and described device includes：
Receiving unit, for receiving dns query message request；
Monitoring unit, the service availability for periodically monitoring master server；
Parse acquiring unit, for when monitor the master server service availability be less than preset value when, to receive
To dns query message request in top level domain parsed, obtain corresponding with top level domain backup & disaster recovery device
Address；
Switch unit is used for according to backup & disaster recovery device address, by the destination service of domain name information inquiring request
Device switches to the backup & disaster recovery device, so that the backup & disaster recovery device provides inquiry of the domain name service.
In conjunction with second aspect, in the first possible implementation, described device further includes switchback unit, the switchback
Unit is specifically used for：
When the service availability for monitoring the master server is restored to the preset value, next domain-name information is looked into
The destination server for asking request switches back to the master server, so that the master server provides inquiry of the domain name service.
In conjunction with second aspect, in second of possible realization method, described device further includes copied cells, the duplication
Unit is specifically used for：
It is synchronized using the domain name registration information of the master server as Backup Data and copies to the backup & disaster recovery device.
In conjunction with second of possible realization method of second aspect, in the third possible realization method, the duplication
Unit includes：
Subelement is generated, for the domain name registration information according to the master server, generates index data；
Subelement is replicated, the backup & disaster recovery is copied to for synchronizing the index data as the Backup Data
Device.
In conjunction with the third any one possible realization method of second aspect to second aspect, in the 4th kind of possible reality
In existing mode, the parsing acquiring unit includes：
Determination subelement determines described top for the domain-name information entrained by domain name information inquiring request
Domain name；
Parsing obtain subelement, for the top level domain carry out dns resolution, and according to dns resolution result obtain with
Top level domain corresponding backup & disaster recovery device address, described address include at least one in the addresses IPv4 and the addresses IPv6
Kind；
Subelement is recorded, for recording at least one of the addresses IPv4 and the addresses IPv6.
The third aspect, provides a kind of electronic equipment, and the electronic equipment includes memory and connects with the memory
The processor connect, wherein the memory calls the memory to be stored for storing batch processing code, the processor
Program code for performing the following operations：
Periodically monitor the service availability of master server；
When the service availability for monitoring the master server is less than preset value, the dns query message received is asked
Top level domain in asking is parsed, and backup & disaster recovery device address corresponding with the top level domain is obtained；
According to backup & disaster recovery device address, the destination server of domain name information inquiring request is switched into the calamity
Standby server, so that the backup & disaster recovery device provides inquiry of the domain name service.
In conjunction with the third aspect, in the first possible implementation, the processor calls the memory to be stored
Program code for performing the following operations：
When the service availability for monitoring the master server is restored to the preset value, next domain-name information is looked into
The destination server for asking request switches back to the master server, so that the master server provides inquiry of the domain name service.
In conjunction with the third aspect, in second of possible realization method, the processor calls the memory to be stored
Program code for performing the following operations：
It is synchronized using the domain name registration information of the master server as Backup Data and copies to the backup & disaster recovery device.
In conjunction with second of possible realization method of the third aspect, in the third possible realization method, the processing
Device calls program code that the memory stored for performing the following operations：
According to the domain name registration information of the master server, index data is generated；
The index data is synchronized as the Backup Data and copies to the backup & disaster recovery device.
In conjunction with the third any one possible realization method of the third aspect to the third aspect, in the 4th kind of possible reality
In existing mode, the processor calls program code that the memory stored for performing the following operations：
According to the domain-name information entrained by domain name information inquiring request, the top level domain is determined；
Dns resolution is carried out to the top level domain, and corresponding with the top level domain according to the acquisition of dns resolution result
Backup & disaster recovery device address, described address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
An embodiment of the present invention provides a kind of calamities of inquiry of the domain name service for switching method and apparatus, including：Periodically
Monitor the service availability of master server；When the service availability for monitoring the master server is less than preset value, to receiving
To dns query message request in top level domain parsed, obtain corresponding with top level domain backup & disaster recovery device
Address；According to backup & disaster recovery device address, it is standby that the destination server of domain name information inquiring request is switched into the calamity
Server, so that the backup & disaster recovery device provides inquiry of the domain name service.It is available by the service for periodically monitoring master server
Property, realize the service availability for grasping master server in real time；In addition, by when the service availability for monitoring the master server
When less than preset value, the top level domain in asking the dns query message received parses, and obtains and the top level domain
Name corresponding backup & disaster recovery device address, and according to backup & disaster recovery device address, by the mesh of domain name information inquiring request
Mark server switches to the backup & disaster recovery device, so that the backup & disaster recovery device provides inquiry of the domain name service, so as to more suitable
Inquiry of the domain name service freely is provided for domain name registration service mechanism and Internet user, is thereby reduced since WAN network is gathered around
The randomness and duration of plug are indefinite and lead to the influence suffered by WHOIS service availabilities.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching method flow chart；
Fig. 2 is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching method flow chart；
Fig. 3 is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching device structural schematic diagram；
Fig. 4 is a kind of electronic equipment schematic diagram provided in an embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of calamities of inquiry of the domain name service for switching method, this method can be applied to due to
The scene that the randomness and duration of the network blockage of wide area network are indefinite and WHOIS service availabilities is caused drastically to decline, except this it
Outside, this method is also applied to the bursts such as the scene of other influences WHOIS service availabilities, such as WHOIS server catastrophic failures
Situation, the embodiment of the present invention are not limited specific application scenarios.
In addition, it is necessary to explanation, described " master server " and " backup & disaster recovery device " is equal in embodiments of the present invention
Can be individual server, or the server cluster being made of multiple servers, and in the server cluster, multiple clothes
Information sharing between business device；Wherein, " master server " and " backup & disaster recovery device ", in difference nominally merely to distinguishing two
Server, and it is not limited to difference of two servers in function or priority, in practical applications, according to application environment
With the difference of needs, " master server " and " backup & disaster recovery device " can be set to " master server " or " backup & disaster recovery
Device ", the present invention are simultaneously not limited.
Embodiment one is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching method, referring to Fig.1 institute
Show, this method includes：
101, the service availability of master server is periodically monitored.
102, when the service availability for monitoring master server is less than preset value, the dns query message received is asked
Top level domain in asking is parsed, and backup & disaster recovery device address corresponding with top level domain is obtained.
Specifically, the process can be：
According to the entrained domain-name information of dns query message request, top level domain is determined；
Dns resolution is carried out to top level domain, and backup & disaster recovery corresponding with top level domain is obtained according to dns resolution result
Device address, address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
103, according to backup & disaster recovery device address, the destination server that dns query message is asked is switched into backup & disaster recovery
Device, so that backup & disaster recovery device provides inquiry of the domain name service.
Optionally, method further includes：
When the service availability for monitoring master server is restored to preset value, by next domain name information inquiring request
Destination server switches back to master server, so that master server provides inquiry of the domain name service.
Optionally, before step 101, method further includes：
The domain name registration information of master server is synchronized as Backup Data and copies to backup & disaster recovery device.
Specifically, the process may include：
According to the domain name registration information of master server, index data is generated；
Index data is synchronized as Backup Data and copies to backup & disaster recovery device.
An embodiment of the present invention provides a kind of calamities of inquiry of the domain name service for switching method, by periodically monitoring main clothes
The service availability of business device realizes the service availability for grasping master server in real time；In addition, monitoring master server by working as
Service availability be less than preset value when, to receive dns query message request in top level domain parse, obtain with
Top level domain corresponding backup & disaster recovery device address, and according to backup & disaster recovery device address, the target that dns query message is asked
Server switches to backup & disaster recovery device, so that backup & disaster recovery device provides inquiry of the domain name service, so as to be more swimmingly domain name
Registration service mechanism and Internet user provide inquiry of the domain name service, thereby reduce the randomness due to WAN network congestion
And duration is indefinite and leads to the influence suffered by WHOIS service availabilities.
Embodiment two is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching method, reference Fig. 2 institutes
Show, this method includes：
201, according to the domain name registration information of master server, index data is generated.
Wherein, master server can solve the same top level domain for storing the corresponding domain name registration information of top level domain
Illustrative, top level domain .top is analysed at least one master server, then the master server for corresponding to the .top top level domain can be with
For IPv4_master and/or IPv6_master.
Domain name registration information include at least domain name, registrar, registration body, registrant, registrant's mailbox, the registration date,
One or more of update date, expiration date, domain name state, name server.
Specifically, the process may include：
Obtain the domain name registration information database stored in master server；
Using domain name registration information database as data source, by index maker, solr index files library is generated.
Further, it is also possible to realize the above process by other means, the present invention does not limit specific generating process specifically
It is fixed.
202, index data is synchronized as Backup Data and copies to backup & disaster recovery device.
Specifically, the process may include：
Establish the communication connection between master server and backup & disaster recovery device；
Index data in master server is corresponded into real-time synchronization and copies to backup & disaster recovery device；
Determine the consistency of the index data and the index data in backup & disaster recovery device in master server.
Wherein, it the index data in master server is corresponded into real-time synchronization copies to backup & disaster recovery device and include：
By master server, the newer index data of institute copies in backup & disaster recovery device after preset time node.
In practical applications, preset time node can be set as 60s or other times.
Illustratively, if a top level domain is .top top level domain, presetting master server corresponding with the .top top level domain is
IPv4_master, IPv6_master, corresponding backup & disaster recovery device is IPv4_slave, IPv6_slave, by IPv4_
Corresponding synchronize copies to IPv4_slave, IPv6_ to the index data of domain name registration information respectively in master, IPv6_master
slave。
In embodiments of the present invention, calamity is copied to due to synchronizing by regarding the index data of master server as Backup Data
Standby server, so that the consistency of the index data of backup & disaster recovery device and master server, so that it is guaranteed that backup & disaster recovery device exists
Accuracy when inquiry of the domain name service is provided.Moreover, comparing in the prior art not by index data directly by master server
Domain name registration information database copy to for backup & disaster recovery device, the present invention can be improved by index data duplication synchronize it is multiple
Data copying efficiency during system, in addition, when the service availability of master server is less than preset value, due to backup & disaster recovery device
Inquiry of the domain name service is provided by index data, and inquiry velocity can be improved using index, therefore backup & disaster recovery can be improved
Device provides response speed when inquiry of the domain name service, to realize the high availability of inquiry of the domain name service.
It is worth noting that, step 201 to step 202 is realized using the domain name registration information of master server as backup number
According to the process for copying to backup & disaster recovery device is synchronized, other than the mode of step, the process can also be realized by other means,
The embodiment of the present invention is not limited specific mode.
It should be noted that it is not necessary that step 201 is performed both by before executing step 203 every time to step 202, if the standby clothes of calamity
It is engaged in the index data of device stored domain name registration information, then can not execute step 201 to step 202, directly execute step
203。
203, the service availability for periodically monitoring master server, judges the service feasibility of the master server monitored
Otherwise whether less than preset value, 209 are thened follow the steps if so, thening follow the steps 204.
Wherein, preset value can be preset according to specific needs, and the present invention does not make specifically specific preset value
It limits.
Service availability, the i.e. percentage of service uptime, be SLA (Service Level Agreement,
Service Level Agreement) in core Measure Indexes.
Specifically, being monitored to the service availability of master server according to preset monitoring frequency, wherein monitoring frequency
Rate could be provided as 60 beats/min, can also be other, the monitoring frequency, the present invention couple are configured with specific reference to actual needs
Specific monitoring frequency is not especially limited.
In addition, periodically monitoring the service availability of master server, which can also include：
The monitoring record being monitored to the service availability of master server is stored, and the storage side of monitoring record is set
Formula, wherein monitoring record includes at least one in the corresponding IP address of master server, port and master server title.
In the embodiment of the present invention, by periodically monitoring the service availability of master server, master server is grasped in real time
Service availability, so as to efficiently provide inquiry of the domain name service.
Optionally, method further includes：
When the service availability for monitoring master server is less than preset value, exported according to preset warning strategies corresponding
Warning information, wherein the warning strategies can be set according to the numerical value of service availability.
Due to by when monitor master server service availability be less than preset value when, it is defeated according to preset warning strategies
Go out corresponding warning information, consequently facilitating maintenance personnel can make corresponding dimension according to the urgency level of different warning information
Shield.
204, according to the entrained domain-name information of dns query message request, top level domain is determined.
Wherein, top level domain can classify by purposes, be ended up respectively with different suffix：.com (public for business
Department)；.top (all companies are used for)；Net (is used for network service)；.org (for tissue association etc.)；.gov (it is used for portion of government
Door)；.edu (it is used for educational institution)；.mil (it is used for military field)；.int (it is used for international organization).It can also be carried out by geography
Classification, if .CN represents China .UK represents Britain.
Specifically, the process may include：
The dns query message request that user terminal is sent is obtained, domain-name information is carried in dns query message request；
Judge to whether there is preset field in whole fields that domain-name information is included, and if it exists, then according to preset field
With the correspondence of top level domain, top level domain is determined.
Illustratively, preset field is " .top ", if it includes " .top " to extract field from domain-name information, it is determined that should
It is .top top level domain that dns query message, which asks corresponding top level domain,.
In practical applications, user terminal may include desktop computer, it is personal computer, above-knee property computer, mobile phone, a
Personal digital assistant etc..
In addition to this, IP address can also be carried in dns query message request, the type of the IP address can be IPv4,
Can also be IPv6, the present invention is not especially limited dns query message request.
205, dns resolution is carried out to top level domain, and standby according to dns resolution result acquisition calamity corresponding with top level domain
Server address, address include at least one of the addresses IPv4 and the addresses IPv6.
Wherein, backup & disaster recovery device address is the network address for identifying WHOIS backup & disaster recovery devices；IPv4 address sizes are
32, IPv6 address sizes are 128.
Specifically, the process may include：
Dns server, the dns server is called to be used to parse top level domain by corresponding api interface, wherein
Api interface is application programming interface；
According to the correspondence between the top level domain and IP address pre-established in dns server, top level domain is parsed,
Wherein, top level domain corresponds to the addresses IPv4 and/or IPv6；
IP address corresponding with top level domain is obtained, which is backup & disaster recovery device address.
Wherein, which can be single dns server, can also be the DNS being made of multiple dns servers
Server cluster, if dns server cluster, then optimal by the network parameter and above-mentioned DNS of available dns server execution
Resolving.
It is worth noting that, step 204 to step 205 is realized when the service availability for monitoring master server is less than in advance
If when value, the top level domain in asking the dns query message received parses, and obtains corresponding with top level domain
The process of backup & disaster recovery device address can also realize that the process, the present invention are real by other means other than the mode of step
Example is applied to be not limited specific mode.
In embodiments of the present invention, by when monitor master server service availability be less than preset value when, to receive
To dns query message request in top level domain parsed, with obtaining corresponding with top level domain backup & disaster recovery device
Location, the top level domain realized in asking dns query message parses, to get suitable backup & disaster recovery device address
Purpose.
206, at least one of the addresses IPv4 and the addresses IPv6 are recorded.
Specifically, the process may include：
Top level domain and the corresponding addresses IPv4 are recorded, A records are generated；And/or
Top level domain and the corresponding addresses IPv6 are recorded, AAAA records are generated；
The cache-time of A records and AAAA records that backup & disaster recovery device address is arranged is A seconds.
In practical applications, A seconds can be 60 seconds, in this way when switch backup & disaster recovery device when, service availability loss
It can control in minute grade, to reduce the influence caused by WHOIS availabilities when network blocks for a long time.
In the embodiment of the present invention, by recording at least one of the addresses IPv4 and the addresses IPv6, so that in master server
Service availability be restored to before preset value, when receiving next domain name information inquiring request from record obtain and top
The destination server of next domain name information inquiring request is directly switched to by the corresponding address of grade domain name without parsing again
Corresponding backup & disaster recovery device, to improve the speed of switching backup & disaster recovery device.
It is worth noting that, without being performed both by step 206 before executing step 207 every time, step can also executed
After 205, step 207 is directly executed, the present invention is not especially limited to whether executing step 206 before executing step 207.
207, according to backup & disaster recovery device address, the destination server that dns query message is asked is switched into backup & disaster recovery
Device.
Specifically, the process may include：
According to the type of backup & disaster recovery device address, available backup & disaster recovery device is selected from preset backup & disaster recovery device cluster
As destination server；
Dns query message request is forwarded to the backup & disaster recovery device as destination server.
Wherein, according to backup & disaster recovery device address, select available backup & disaster recovery device as mesh from backup & disaster recovery device cluster
Server is marked, which may include：
When backup & disaster recovery device address style is IPv4, judge in backup & disaster recovery device cluster with the presence or absence of the calamity of corresponding IPv4
Standby server, and if it exists, then, as destination server, if being not present, taken corresponding to the backup & disaster recovery device of IPv4 from calamity is standby
It is the backup & disaster recovery device of IPv6 as destination server that address style is selected in business device cluster；
When backup & disaster recovery device address style is IPv6, judge in backup & disaster recovery device cluster with the presence or absence of the calamity of corresponding IPv6
Standby server, and if it exists, then, as destination server, if being not present, taken corresponding to the backup & disaster recovery device of IPv6 from calamity is standby
It is the backup & disaster recovery device of IPv4 as destination server that address is selected in business device cluster.
208, backup & disaster recovery device provides inquiry of the domain name service.
Specifically, the process may include：
Domain-name information in the dns query message request sent according to user terminal, backup & disaster recovery node is from index data
Inquiry domain name registration information corresponding with domain-name information, and export query result.
In the embodiment of the present invention, due to by the way that according to backup & disaster recovery device address, the target of dns query message request is taken
Business device switches to backup & disaster recovery device, so that backup & disaster recovery device provides inquiry of the domain name service, so as to be more swimmingly that domain name is noted
Volume service organization and Internet user provide inquiry of the domain name service, thereby reduce due to WAN network congestion randomness and
Duration is indefinite and leads to the influence suffered by WHOIS service availabilities, to realize the high availability of WHOIS services.
209, the destination server of next domain name information inquiring request is switched back into master server, so that master server carries
For inquiry of the domain name service.
Specifically, the process may include：
According to the entrained domain-name information of dns query message request, top level domain is determined；
Dns resolution is carried out to top level domain, and master server corresponding with top level domain is obtained according to dns resolution result
Address, address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
In the embodiment of the present invention, since the randomness of network congestion may make under backup & disaster recovery device WHOIS service availabilities
Drop, and by when the service availability for monitoring master server is restored to preset value, by next domain name information inquiring request
Destination server switch back to master server so that master server provide inquiry of the domain name service so that inquiry of the domain name ask
Task can be handled efficiently in time, and the high availability of WHOIS services is furthermore achieved.
An embodiment of the present invention provides a kind of calamities of inquiry of the domain name service for switching method, by periodically monitoring main clothes
The service availability of business device realizes the service availability for grasping master server in real time；In addition, monitoring master server by working as
Service availability be less than preset value when, to receive dns query message request in top level domain parse, obtain with
Top level domain corresponding backup & disaster recovery device address, and according to backup & disaster recovery device address, the target that dns query message is asked
Server switches to backup & disaster recovery device, so that backup & disaster recovery device provides inquiry of the domain name service, so as to be more swimmingly domain name
Registration service mechanism and Internet user provide inquiry of the domain name service, thereby reduce the randomness due to WAN network congestion
And duration is indefinite and leads to the influence suffered by WHOIS service availabilities.
Embodiment three is a kind of calamity of inquiry of the domain name service provided in an embodiment of the present invention for switching device, reference Fig. 3 institutes
Show, device 3 includes：
Receiving unit 31, for receiving dns query message request；
Monitoring unit 32, the service availability for periodically monitoring master server；
Parse acquiring unit 33, for when monitor master server service availability be less than preset value when, to receiving
Dns query message request in top level domain parsed, obtain corresponding with top level domain backup & disaster recovery device address；
Switch unit 34, for according to backup & disaster recovery device address, the destination server of dns query message request to be switched
To backup & disaster recovery device, so that backup & disaster recovery device provides inquiry of the domain name service.
Optionally, device 3 further includes switchback unit 35, and switchback unit 35 is specifically used for：
When the service availability for monitoring master server is restored to preset value, by next domain name information inquiring request
Destination server switches back to master server, so that master server provides inquiry of the domain name service.
Optionally, device 3 further includes copied cells 36, and copied cells 36 are specifically used for：
The domain name registration information of master server is synchronized as Backup Data and copies to backup & disaster recovery device.
Optionally, copied cells 36 include：
Subelement 361 is generated, for the domain name registration information according to master server, generates index data；
Subelement 362 is replicated, backup & disaster recovery device is copied to for synchronizing index data as Backup Data.
Optionally, parsing acquiring unit 33 includes：
Determination subelement 331, for according to the entrained domain-name information of dns query message request, determining top level domain；
Parsing obtains subelement 332, for carrying out dns resolution to top level domain, and obtains and pushes up according to dns resolution result
Grade domain name corresponding backup & disaster recovery device address, address includes at least one of the addresses IPv4 and the addresses IPv6；
Subelement 333 is recorded, for recording at least one of the addresses IPv4 and the addresses IPv6.
An embodiment of the present invention provides a kind of calamities of inquiry of the domain name service for switching device, and the device is by periodically supervising
The service availability of master server is controlled, realizes the service availability for grasping master server in real time；In addition, monitoring main clothes by working as
When the service availability of business device is less than preset value, the top level domain in asking the dns query message received parses,
Backup & disaster recovery device address corresponding with top level domain is obtained, and according to backup & disaster recovery device address, dns query message is asked
Destination server switch to backup & disaster recovery device so that backup & disaster recovery device provide inquiry of the domain name service, so as to more swimmingly
Inquiry of the domain name service is provided for domain name registration service mechanism and Internet user, is thereby reduced due to WAN network congestion
Randomness and duration are indefinite and lead to the influence suffered by WHOIS service availabilities.
Example IV is a kind of electronic equipment provided in an embodiment of the present invention, and with reference to shown in Fig. 4, electronic equipment 4 includes depositing
Reservoir 41 and the processor 42 being connect with memory 41, wherein memory 41 is for storing batch processing code, processor 42
Call the program code that memory 41 is stored for performing the following operations：
Periodically monitor the service availability of master server；
When the service availability for monitoring master server is less than preset value, in asking the dns query message received
Top level domain parsed, obtain corresponding with top level domain backup & disaster recovery device address；
According to backup & disaster recovery device address, the destination server that dns query message is asked is switched into backup & disaster recovery device, with
Backup & disaster recovery device is set to provide inquiry of the domain name service.
Optionally, the program code that the calling of processor 42 memory 41 is stored is for performing the following operations：
When the service availability for monitoring master server is restored to preset value, by next domain name information inquiring request
Destination server switches back to master server, so that master server provides inquiry of the domain name service.
Optionally, the program code that the calling of processor 42 memory 41 is stored is for performing the following operations：
The domain name registration information of master server is synchronized as Backup Data and copies to backup & disaster recovery device.
Optionally, the program code that the calling of processor 42 memory 41 is stored is for performing the following operations：
According to the domain name registration information of master server, index data is generated；
Index data is synchronized as Backup Data and copies to backup & disaster recovery device.
Optionally, the program code that the calling of processor 42 memory 41 is stored is for performing the following operations：
According to the entrained domain-name information of dns query message request, top level domain is determined；
Dns resolution is carried out to top level domain, and backup & disaster recovery corresponding with top level domain is obtained according to dns resolution result
Device address, address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
An embodiment of the present invention provides a kind of electronic equipment, the electronic equipment is by periodically monitoring the clothes of master server
Business availability realizes the service availability for grasping master server in real time；In addition, by can be used when the service for monitoring master server
Property be less than preset value when, to receive dns query message request in top level domain parse, obtain and top level domain
Corresponding backup & disaster recovery device address, and according to backup & disaster recovery device address, the destination server that dns query message is asked is cut
Backup & disaster recovery device is shifted to, so that backup & disaster recovery device provides inquiry of the domain name service, so as to be more swimmingly domain name registration service
Mechanism and Internet user provide inquiry of the domain name service, thereby reduce due to WAN network congestion randomness and duration not
Determine and leads to the influence suffered by WHOIS service availabilities.
The alternative embodiment that any combination forms the present invention may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
It should be noted that：The calamity for the inquiry of the domain name service that above-described embodiment provides is executing inquiry of the domain name for switching device
It, only the example of the division of the above functional modules, can basis in practical application when the calamity of service is for switching method
It needs and completes above-mentioned function distribution by different function modules, i.e., the internal structure of device is divided into different function moulds
Block, to complete all or part of the functions described above.It is cut in addition, the calamity for the inquiry of the domain name service that above-described embodiment provides is standby
Changing device and the calamity of inquiry of the domain name service belong to same design for switching method embodiment, and specific implementation process refers to method reality
Example is applied, which is not described herein again.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of calamity of inquiry of the domain name service is for switching method, which is characterized in that the method includes：
Periodically monitor the service availability of master server；
When the service availability for monitoring the master server is less than preset value, in asking the dns query message received
Top level domain parsed, obtain corresponding with top level domain backup & disaster recovery device address；
According to backup & disaster recovery device address, the destination server of domain name information inquiring request is switched into the standby clothes of the calamity
Business device, so that the backup & disaster recovery device provides inquiry of the domain name service.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
When the service availability for monitoring the master server is restored to the preset value, next dns query message is asked
The destination server asked switches back to the master server, so that the master server provides inquiry of the domain name service.
3. according to the method described in claim 1, it is characterized in that, the service availability for periodically monitoring master server
Before step, the method further includes：
It is synchronized using the domain name registration information of the master server as Backup Data and copies to the backup & disaster recovery device.
4. according to the method described in claim 3, it is characterized in that, it is described using the domain name registration information of the master server as
Backup Data, which synchronizes, to be copied to the backup & disaster recovery device and includes：
According to the domain name registration information of the master server, index data is generated；
The index data is synchronized as the Backup Data and copies to the backup & disaster recovery device.
5. method according to any one of claims 1 to 4, which is characterized in that described to monitor the master server
Service availability be less than preset value when, to receive dns query message request in top level domain parse, obtain
Backup & disaster recovery device address corresponding with the top level domain includes：
According to the domain-name information entrained by domain name information inquiring request, the top level domain is determined；
Dns resolution is carried out to the top level domain, and standby according to dns resolution result acquisition calamity corresponding with the top level domain
Server address, described address include at least one of the addresses IPv4 and the addresses IPv6；
Record at least one of the addresses IPv4 and the addresses IPv6.
6. a kind of calamity of inquiry of the domain name service is for switching device, which is characterized in that described device includes：
Receiving unit, for receiving dns query message request；
Monitoring unit, the service availability for periodically monitoring master server；
Parse acquiring unit, for when monitor the master server service availability be less than preset value when, to what is received
Top level domain in dns query message request is parsed, with obtaining backup & disaster recovery device corresponding with the top level domain
Location；
Switch unit, for according to backup & disaster recovery device address, the destination server of domain name information inquiring request to be cut
The backup & disaster recovery device is shifted to, so that the backup & disaster recovery device provides inquiry of the domain name service.
7. device according to claim 6, which is characterized in that described device further includes switchback unit, the switchback unit
It is specifically used for：
When the service availability for monitoring the master server is restored to the preset value, next dns query message is asked
The destination server asked switches back to the master server, so that the master server provides inquiry of the domain name service.
8. device according to claim 6, which is characterized in that described device further includes copied cells, the copied cells
It is specifically used for：
It is synchronized using the domain name registration information of the master server as Backup Data and copies to the backup & disaster recovery device.
9. device according to claim 8, which is characterized in that the copied cells include：
Subelement is generated, for the domain name registration information according to the master server, generates index data；
Subelement is replicated, the backup & disaster recovery device is copied to for synchronizing the index data as the Backup Data.
10. according to the device described in claim 6 to 9 any one, which is characterized in that the parsing acquiring unit includes：
Determination subelement determines the top level domain for the domain-name information entrained by domain name information inquiring request；
Parsing obtain subelement, for the top level domain carry out dns resolution, and according to dns resolution result obtain with it is described
Top level domain corresponding backup & disaster recovery device address, described address include at least one of the addresses IPv4 and the addresses IPv6；
Subelement is recorded, for recording at least one of the addresses IPv4 and the addresses IPv6.
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| CN108737586B (en) | 2021-09-28 |
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