CN107347015A - A kind of recognition methods of content distributing network, apparatus and system - Google Patents
A kind of recognition methods of content distributing network, apparatus and system Download PDFInfo
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- CN107347015A CN107347015A CN201610299077.2A CN201610299077A CN107347015A CN 107347015 A CN107347015 A CN 107347015A CN 201610299077 A CN201610299077 A CN 201610299077A CN 107347015 A CN107347015 A CN 107347015A
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- 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
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5058—Service discovery by the service manager
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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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- Computer Networks & Wireless Communication (AREA)
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- Information Transfer Between Computers (AREA)
Abstract
This application provides a kind of recognition methods of content distributing network, device and system, wherein method includes：Obtain summary information corresponding with target domain name；Wherein, the summary information includes accessing the source IP address set of the access equipment of the target domain name in preset time period；If the source IP address quantity in the summary information is predetermined number, after judging to meet the first preparatory condition, determine that content distribution network CDN service is opened in targeted website corresponding to the target domain name.The identification method that the application provides is extracted using CNAME records and A records to realize the general character of CDN service, therefore, it can both be identified using CNAME records using the application come by the way of realizing CDN service, it can also identify by the way of A records realize CDN service, so as to facilitate cloud platform to judge whether website increases CDN service.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of recognition methods of content distributing network, dress
Put and system.
Background technology
Along with the development increasingly of cloud platform, many enterprise customers can build website in cloud platform.By
In the limitation of external web environment, the same web site in the client access cloud platform of different regions can be caused
Speed differ.For example, it is assumed that the geographical position of cloud platform is arranged on Beijing, an enterprise customer is in cloud
Website X is built on platform.When the customer end A that geographical position is in Guangdong accesses website, because trans-regional
The reason for, website X opening speed is more many slowly than Beijing domestic customer end B speed.Therefore, website station
Length can be that website configures content distributing network (Content Delivery Network, CDN), so as to net
CDN service can be enjoyed by standing, so as to accelerate the access speed of different regions client.
Increasing CDN service for website is mainly：Multiple CDN are set to take between client and cloud platform
Business device and a master control server, the access that each CDN server can handle client transmission please
Ask.CDN service operation principle is：The access request that client is intended to send to website, no longer directly
Source website is sent to, but is sent to the master control server for providing CDN service, by master control server according to net
Network integrated information, access request is redirected into the CDN server closest with client.
Due to after CDN service is increased, the access request of client is forwarded directly to nearest apart from client
CDN server on, also, in most cases CDN server is cached with and access request pair
The response message answered, so, client can be avoided to obtain response message to source website.Therefore increasing
Access efficiency can be greatly improved after CDN service.
In CDN service, if CDN server is uncached response message corresponding with access request,
Then perform back source operation.The implementation procedure of the source of returning operation is back that source server (receives client access request
CDN server or other CDN servers) to source website send access request, so as to from source net
Stand and obtain response message corresponding with access request.
Because current network attack is a lot, so cloud platform is it should be understood that the safe condition of itself.General feelings
Under condition, cloud platform can judge whether visitor is attack equipment by visitor's IP address.But by
Increase CDN service in website and do not need the cooperation of cloud platform, so, cloud platform can not learn those nets
Standing increases CDN service, and those websites do not increase CDN service.From the point of view of cloud platform angle, access originator
The access IP address of website is still the IP address of client.
But under actual conditions, only when not configuring CDN service to website, access IP address
It is the IP address of client.After CDN service is configured, the access IP address of website is back in cloud platform
The IP address of source server.That is, the IP address of all clients is shown as back the IP of source server
Address.Therefore, this can mislead the implementation procedure that legacy network is attacked in cloud platform.
Accordingly, it is now desired to a kind of method, to cause cloud platform to know whether website increases CDN service,
So that cloud platform can avoid misleading to the implementation procedure of legacy network attack.
The content of the invention
Applicant's research process find to have assisted whether cloud platform identification website increases CDN service at present
A kind of mode, in order that those skilled in the art know that at present identification CDN service mode realization
Process, introduce increases CDN server one kind specific implementation process first to website.
Before CDN service is not used, the DNS records of browser are by the way of A records, storage
There is the corresponding relation of website domain name and web IP address.Therefore, the bag of client transmission is received in browser
After access request containing website domain name, website domain name can be parsed so as to know web IP address.
Then, access request is initiated with web IP address corresponding with service main frame in cloud platform.
After CDN service is increased, in order that obtaining access request is directed to the CDN for providing CDN service
Provider, therefore browser DNS records are modified.Original A is recorded more during DNS is recorded
Be changed to CNAME records, and using CNAME recording modes, website domain name and CDN offers are provided
The corresponding relation of quotient field name.
So, after the access request comprising website domain name that browser receives that client is sent, browser
CNAME domain names (namely CDN providers domain name) are obtained after being parsed to website domain name.Then,
CNAME domain names (namely CDN providers domain name) are parsed again, so as to obtain CDN clothes
The IP address of business device, then access request is sent to CDN server corresponding to the IP address.
It can thus be seen that original A records in the DNS records of browser after increasing CDN service
CNAME records are changed to, also, the domain name of CDN providers is stored with CNAME records.Cause
This, the mode whether identify website at present increases CDN service is：It is interior for a period of time that cloud platform monitors website
DNS record in CNAME record.If CNAME domain names in CNAME records in a period of time
It is directed to some CDN provider, it is determined that the website increases CDN service.
But along with the increasingly popular of CDN service, CDN service implementation also gradually increases.
At present, had and still recorded using the A in DNS records come by the way of realizing CDN service.That is,
Directly specify a CDN server, and in a browser using A recording modes, storage website domain name with
The corresponding relation of the IP address of the CDN server.So, browser can after website domain name is parsed,
Directly access request is sent to CDN server.
But the implementation of this CDN service using A records can not use identification CDN at present
The mode of service is identified, because identifying that the mode of CDN service is only capable of identification and uses CNAME at present
The CDN implementations of record.Accordingly, it is now desired to a kind of new identification method, so as to identify each
Kind realizes the mode of CDN service, so as to judge whether website increases CDN service.
To achieve these goals, the application provides following technological means：
A kind of recognition methods of content distributing network, including：
Obtain summary information corresponding with target domain name；Wherein, the summary information includes preset time period
The source IP address set of the interior access equipment for accessing the target domain name；
If the source IP address quantity in the summary information is predetermined number, judging to meet that first is default
After condition, determine that content distribution network CDN service is opened in targeted website corresponding to the target domain name.
Preferably, the predetermined number is 1.
Preferably, also include after summary information corresponding with target domain name is obtained：
It is determined that summary information set corresponding with the target domain name, the summary information set includes described
Summary information, and other summary informations corresponding with the target domain name；
It is determined that the source IP address quantity in the summary information set in each summary information is present count
It is described to judge to meet that the first preparatory condition includes after amount：
Judge the source IP address all same in each summary information.
Preferably, it is determined that content distributing network CDN clothes are opened in targeted website corresponding to the target domain name
After business, in addition to：
By the source IP address in any summary information corresponding with the target domain name, it is defined as back source service
Device returns source IP address.
Preferably, in addition to：
If the non-default quantity of source IP address quantity in the summary information, it is determined that with the target domain name
Corresponding summary information set；The summary information set include the summary information and with the target
Other summary informations corresponding to domain name, and, the duration of preset time period is identical corresponding to each summary information；
After judging to meet the second preparatory condition, it is interior to determine that targeted website corresponding to the target domain name is opened
Content distributing network CDN service.
Preferably, it is described to judge to meet that the second preparatory condition includes：
Based on the source IP address set in each summary information, multiple source IP address undetermined are determined；
Calculate the standard deviation that each source IP address undetermined corresponds to access times percentage；
It is poor that if standard deviation corresponding at least one source IP undetermined is less than preset standard, it is determined that with the target
Domain name corresponds to targeted website and opens CDN service.
Preferably, the source IP address set based in each summary information, determines multiple source IPs undetermined
Address includes：
Based on the source IP address set in each summary information, reject not in each source IP address set
The source IP address of appearance；
By remaining multiple source IP address, it is defined as multiple source IP address undetermined；Wherein, the source undetermined
IP is used for the IP address for representing to be determined time source server.
Preferably, in addition to：
The standard deviation of access percentage is less than to the source IP address undetermined of preset standard difference, is defined as back source IP
Address.
Preferably, the summary information also includes sending to access to the target domain name in preset time period asking
The first total access times asked, the interior XFF into the access request of target domain name transmission of preset time period
Total non-NULL number of field；
Then the first preparatory condition or second preparatory condition include：
First total access times in the summary information are equal to total non-NULL number of XFF fields.
A kind of identification device of content distributing network, including：
Acquiring unit, for obtaining summary information corresponding with target domain name；Wherein, the summary information
Including the source IP address set for the access equipment that the target domain name is accessed in preset time period；
First determining unit, if being predetermined number for the source IP address quantity in the summary information,
After judging to meet the first preparatory condition, determine that content point is opened in targeted website corresponding to the target domain name
Hairnet network CDN service.
Preferably, the predetermined number is 1.
Preferably, first aggregation units are determined, for determining summary information corresponding with the target domain name
Set, the summary information set include the summary information, and it is corresponding with the target domain name its
Its summary information；
The then identifying unit, specifically for it is determined that in the summary information set in each summary information
Source IP address quantity be predetermined number after, after judging to meet the first preparatory condition, determine the mesh
Open content distribution network CDN service in targeted website corresponding to mark domain name；Wherein, it is described to judge to meet the
One preparatory condition includes：Judge the source IP address all same in each summary information.
Described device also includes：It is determined that source IP address unit is returned, for will be corresponding with the target domain name
Source IP address in any summary information, be defined as back source server returns source IP address.
Preferably, in addition to：
Second determines aggregation units, if for the non-default quantity of source IP address quantity in the summary information,
Then determine summary information set corresponding with the target domain name；The summary information set includes the remittance
Total information and other summary informations corresponding with the target domain name, and, corresponding to each summary information
The duration of preset time period is identical；
Second determining unit, for after judging to meet the second preparatory condition, determining the target domain name pair
Open content distribution network CDN service in the targeted website answered.
Wherein, second determining unit specifically includes：Pending address unit is determined, for based on each
Source IP address set in summary information, determine multiple source IP address undetermined；
Computing unit, the standard deviation of access times percentage is corresponded to for calculating each source IP address undetermined；
It is determined that CDN service unit is opened, if being less than for standard deviation corresponding at least one source IP undetermined
Preset standard is poor, it is determined that opens CDN service in targeted website corresponding with the target domain name.
Source IP address unit is then determined back, it is poor less than preset standard by the standard deviation of access percentage to be additionally operable to
Source IP address undetermined, be defined as back source IP address.
Wherein, the determination pending address unit, specifically for based on the source IP in each summary information
Location is gathered, and rejects the source IP address not occurred in each source IP address set；It is determined that will be remaining more
Individual source IP address, it is defined as multiple source IP address undetermined；Wherein, the source IP undetermined is treated for expression
It is determined that return the IP address of source server.
Preferably, the summary information also includes sending to access to the target domain name in preset time period asking
The first total access times asked, the interior XFF into the access request of target domain name transmission of preset time period
Total non-NULL number of field；
Then first preparatory condition and second preparatory condition include：First in the summary information
Total access times are equal to total non-NULL number of XFF fields.
A kind of processing equipment, including：
Processor and the memory being connected with the processor；
The memory, for storing summary information corresponding with target domain name；
Residing processor, for obtaining summary information corresponding with target domain name from the memory；Its
In, the summary information is with including the source IP that the access equipment of the target domain name is accessed in preset time period
Gather location；If the source IP address quantity in the summary information is predetermined number, judging to meet first
After preparatory condition, determine that content distribution network CDN service is opened in targeted website corresponding to the target domain name.
Find that the application has the advantages that by above technological means：
Present inventor has found whether targeted website opens CDN service and access target net by studying
The source IP address stood is relevant, therefore the source IP address of the application access target website is to determine targeted website
It is no to open CDN server.Because the application is not recorded using DNS, it is therefore not necessary to which being entangled with makes
CNAME records or A in being recorded with DNS are recorded to verify whether website opens CDN service；
Also, the identification method that the application provides is extracted using CNAME records and A records to realize CDN
The general character of service, therefore, it can both be identified using CNAME records using the application to realize CDN
The mode of service, it can also identify by the way of A records realize CDN service, so as to convenient
Cloud platform judges whether website increases CDN service.
Brief description of the drawings
, below will be to reality in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The required accompanying drawing used in example or description of the prior art is applied to be briefly described, it should be apparent that, below
Accompanying drawing in description is only some embodiments of the present application, for those of ordinary skill in the art,
On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the identifying system of content distributing network disclosed in the embodiment of the present application；
Fig. 2 is a kind of flow chart of the recognition methods of content distributing network disclosed in the embodiment of the present application；
Fig. 3 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 4 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 5 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 6 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 7 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 8 is the flow chart of the recognition methods of another content distributing network disclosed in the embodiment of the present application；
Fig. 9 is a kind of structural representation of the identification device of content distributing network disclosed in the embodiment of the present application；
Figure 10 is the structural representation of the identification device of another content distributing network disclosed in the embodiment of the present application
Figure；
Figure 11 is the structural representation of the identification device of another content distributing network disclosed in the embodiment of the present application
Figure；
Figure 12 is the structural representation of the identification device of another content distributing network disclosed in the embodiment of the present application
Figure；
Figure 13 is the structural representation of another processing equipment disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out
Clearly and completely describing, it is clear that described embodiment is only some embodiments of the present application, and
The embodiment being not all of.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of the application protection.
The technical term in the application is more had a clear understanding of in order to facilitate those skilled in the art, below to this
Technical term in application is explained：
Source IP address set：It is in the implication of the application, if each access equipment accesses in preset time period
Targeted website corresponding to target domain name, then the source IP address of each access equipment is formed into source IP address set.
Summary information：It is in the implication of the application, if each access equipment access target in preset time period
Targeted website corresponding to domain name, then the feature of each access equipment is collected, so as to obtain each spy
The summary information of sign.For example, the source IP address set of the source IP address composition of each access equipment, owns
Access equipment sends first total access times of access request to target domain name, is sent to the target domain name
Access request in XFF fields total non-NULL number etc..
Access percentage：One source IP address is secondary to the access times that target domain name is sent and first total access
Several business.
XFF field references clients, i.e., the IP address of request end in access request.
Load balancing：Randomly choose one of in multiple CDN servers as CDN and go back to source
When used time source server.
There are multiple CDN servers in CDN service, master control server is in order to prevent a CDN service
Device excessively performs back source operation, and the situation that other CDN servers are left unused occurs, and can control each
The source of returning that CDN server performs approximately the same number operates.I.e. master control server can be in multiple CDN
Different CDN servers is selected to be used as back source server in server, in order to avoid some CDN server mistake
In continually being operated to the source that performs back, some CDN server is had undesirable effect.
The detailed implementation of the application is described below：
For convenience skilled in the art realises that the application scenarios of the application, therefore, the application provide one
The identifying system of kind content distributing network.As shown in figure 1, the system includes：
Multiple client 100, the transferring equipment 200 being connected with the multiple client 100, in described
Turn the connected CDN equipment 300 of equipment 200, the cloud platform 400 being connected with the CDN equipment 300.
Wherein, the CDN equipment 300 includes master control server 301, and with the master control server 301
Connected multiple CND servers 302.CND servers 302 can use CND servers 1, CND
Server 2 ... CND servers N is represented.
When not using CDN service, multiple client 100 is directly by transferring equipment 200 to cloud platform
400 send access request.After CDN service is increased, multiple client 100 passes through transferring equipment 200
It is directed to one of CDN server 302.Decided whether again from CDN server 302 to cloud platform
400 send access request.
It is client 100 or CDN server due to not knowing temporarily to cloud platform transmission access request
302, therefore, the equipment that access request is sent to cloud platform is represented using access equipment.It is appreciated that
It is that for a website, access equipment can be client 100 or CDN server 302.
Before the detailed implementation of explanation the application, illustrate that cloud platform prepares process in advance first：
The application is when judging whether website uses CDN service, it is necessary to be accessed by the history for accessing website
Request, a small amount of access request is not enough to judge whether website uses CDN service, therefore, it is necessary to obtains big
Measure history access request.Because whether a website uses CDN service, the visit by accessing the website is only capable of
Ask that request determines.Therefore, cloud platform can carry out feature extraction to the access request of each website respectively,
And Classifying Sum is carried out to characteristic information, so as to obtain the summary information of each website.Then, storing
The corresponding relation of website domain name and summary information is built in space, subsequently to determine whether website is open-minded
Used during CDN service.
In order to obtain summary information, cloud platform can set multiple periods in advance.For example, 12:00-13:00
For preset time period, 13:00-14:00 is preset time period, 14:00-15:00 is preset time period；At this
The duration of each period is consistent in citing.Certainly, the duration of each period, which can also be, differs
Cause；For example, 12:00-12:40 be preset time period, 12:40-13:00 is preset time period, 13:00-14:00
For preset time period.Cloud platform can the access request based on each period, to determine each period
Summary information.
Found during the application applicant studies CDN service：Access equipment in each period
Source IP address, can assist cloud platform judge website whether open CDN service, therefore, the application
In the summary information of each period can include：Source IP address set.That is, the visit in preset time period
Ask the source IP address set of the IP address composition of equipment.
For a website, there can be one or more access equipments to access net in preset time period
Stand.Therefore, cloud platform obtains the access request of preset time period, and extracts access from access request and set
Standby source IP address, and store source IP address.
It is understood that source IP address set includes different source IP address, two identical IP
Location will not occur in source IP address set.That is, if the source in all access requests in preset time period
IP address is consistent, then there was only a source IP address in the source IP address set obtained after treatment.
, can will be multiple different if having different source IP address in preset time period in all access requests
Source IP address forms source IP address set.
The specific implementation procedure whether cloud platform identification website opens CDN service is described below.It is appreciated that
, cloud platform is consistent for the implementation procedure of each website, and therefore, the application is only with target
Described in detail exemplified by the identification process of website.This application provides a kind of identification of content distributing network
Method, applied to the cloud platform shown in Fig. 1.As shown in Fig. 2 specifically include following steps：
Step S201：Obtain summary information corresponding with target domain name；Wherein, the summary information includes
The source IP address set of the access equipment of the target domain name is accessed in preset time period.
For the ease of description, website domain name corresponding to targeted website is referred to as target domain name.Pass through foregoing cloud
In the set-up procedure of platform, it can learn to be stored with cloud platform and corresponding with each website domain name collect letter
Breath.Therefore, inquired about by target domain name in memory space, it is corresponding with target domain name so as to obtain
Summary information.
Step S202：If the source IP address quantity in the summary information is predetermined number, judging completely
After sufficient preparatory condition, determine that content distributing network CDN is opened in targeted website corresponding to the target domain name.
Present inventor is can be found that by analyzing the implementation of CDN service：No matter using
The mode of CNAME records (by the way of being recorded during transferring equipment DNS is recorded using CNAME, is added
Add the corresponding relation of website domain name and CDN service provider domain name) CDN service is realized, or directly
Connect and website (by the way of being recorded in transferring equipment DNS records using A, is added using A recording modes
The corresponding relation of the IP address of domain name and CDN server) CDN service is realized, provided in CDN
In the case that business does not use load balancing, the source server that returns for sending access request to cloud platform only has one,
It is and substantially changeless.Therefore, predetermined number is set in the present embodiment as 1.
In the case of normally not opening CDN service in targeted website, send and visit from each terminal to targeted website
Request is asked, therefore, the source IP address of access target website necessarily has multiple.
Therefore, judge whether the source IP address quantity in summary information is predetermined number, that is, judge to collect letter
Whether the source IP address quantity in breath is 1.If cloud platform determines the source IP address quantity in summary information and is
In the case that predetermined number, i.e. source IP address quantity are 1, then target corresponding to target domain name can be determined
Open CDN service in website.(the first preparatory condition is empty condition in the present embodiment).
After it is determined that targeted website opens CDN service, the source IP address in summary information can be determined
To return the IP address of source server.
By above-described embodiment it can be found that the application has the advantages that：
Present inventor has found whether targeted website opens CDN service and access target net by studying
The source IP address stood is relevant, therefore the source IP address of the application access target website is to determine targeted website
It is no to open CDN server.Because the application is not recorded using DNS, it is therefore not necessary to which being entangled with makes
CNAME records or A in being recorded with DNS are recorded to verify whether website opens CDN service；
Also, the identification method that the application provides is extracted using CNAME records and A records to realize CDN
The general character of service, therefore, it can both be identified using CNAME records using the application to realize CDN
The mode of service, it can also identify by the way of A records realize CDN service, so as to convenient
Cloud platform judges whether website increases CDN service.
Embodiment shown in Fig. 2 verifies whether targeted website is open-minded only with a summary information set
CDN service, because the data volume of a summary information is less, so obtained the result may be forbidden
Really.Therefore, the application can use multiple summary informations, to judge whether targeted website opens CDN clothes
Business.
As shown in figure 3, the application provides a kind of another embodiment of the recognition methods of content distributing network,
Specifically include following steps：
Step S301：It is determined that summary information set corresponding with target domain name；Wherein, the summary information
Set includes the summary information of multiple preset time periods, and each summary information includes：Visited in preset time period
Ask the source IP address set of the IP address composition of the access equipment of the target domain name.It is also, each to collect
The duration of the preset time period of information can with identical, or, differ.
Step S302：Judge the source IP address quantity in summary information set in each summary information whether be
Predetermined number.Wherein, predetermined number 1；If so, then enter step S303；Otherwise step S304 is entered.
Cloud platform according to the summary information of each preset time period, can judge the source IP of each summary information
Whether number of addresses is 1.If 1, then illustrate that targeted website may be in unused load balancing
In the case of CDN service.Therefore enter step S303, determined whether.
Step S303：If the source IP address quantity in each summary information is predetermined number, judging
After meeting the first preparatory condition, determine that CDN service is opened in targeted website corresponding to the target domain name.Its
In, the first preparatory condition is the source IP address all same in each summary information.
If CDN service is opened in targeted website in the case where not using load balancing really, can be certainly
It is that the source IP address quantity that cloud platform receives all access requests in different time sections is 1, and,
A source IP address in each period summary information should all same (as return the IP of source server
Address).
Therefore, can be determined whether with cloud platform each period source IP address whether all same.It is if each
If the source IP address all same of individual period, it is determined that meet the first preparatory condition, that is, when representing multiple
Between an only identical source IP address access target website in section.Under normal circumstances, there are multiple clients
End constantly sends access request to targeted website, therefore such case can not possibly occurs.So it is determined that full
Under the first preparatory condition of foot, it is defined as back the access request that source server is sent to cloud platform.Determine mesh
CDN service is opened in mark website and load balancing is not used in CDN providers.
After it is determined that targeted website opens CDN service, due to targeted website, corresponding one is returned source server.
Therefore, the source IP address in the summary information of preset time period is appointed to be back source service in summary information set
The IP address of device.So can by the source IP address in the source IP address set of any summary information,
Be defined as back source server returns source IP address.
Step S304：Perform other processing operations.
It is understood that there is a branch after step S202 and step S302：In summary information
The non-default quantity of source IP address quantity.If the non-default quantity of source IP address quantity in summary information is (pre-
If 1) quantity is, then there may be two kinds of situations：
The first situation, targeted website do not use CDN service.
Second of situation：CDN server is opened but has used load balancing in targeted website.
Therefore, it is necessary to further deterministic process be performed, to determine whether targeted website opens CDN service.
After CDN service provider uses load balancing, CDN master controls server is each in order to balance
The load of CDN server, source server can be selected back in multiple CDN servers using polling mode.
Therefore, each CDN server can be used as back source server.Also, if each summary information is corresponding
Preset time period duration it is identical if, then access percentage of each CDN server in each period
Should be approximate consistent.
Therefore, cloud platform can set multiple preset time periods of identical duration, and obtain and target domain name
Corresponding summary information set, summary information set include the summary information of each period.It is also, each
In summary information in addition to source IP address set, in addition to：First for calculating access percentage is total
Second total access times corresponding to access times and each IP address.Wherein, first total access times are pre-
If sending total access times of access request in the period to the target domain name, second total access times are
A source IP address accesses total access times of the target domain name in preset time period.
Present invention also provides a kind of recognition methods of content distributing network.As shown in figure 4, specifically include
Following steps：
Step S401：It is determined that summary information set corresponding with target domain name；Wherein, the summary information
Set includes the summary information of multiple periods.Each summary information includes：Institute is accessed in preset time period
The source IP address set of the IP address composition of the access equipment of target domain name is stated, preset time period is interior to described
Target domain name sends first total access times of access request, and each source IP address in preset time period
Second total access times of the target domain name are accessed, and, the duration of each period is identical.
Step S402：Judge whether the source IP address quantity in each summary information is predetermined number.Wherein,
Predetermined number is 1.The execution of step S303 in Fig. 3 can be performed if source address quantity is predetermined number
Process.If not predetermined number, then it can enter step S403.
Step S403：After judging to meet the second preparatory condition, target corresponding to the target domain name is determined
Open content distribution network CDN service in website.
Open CDN service and using a basis for estimation of load balancing in targeted website：Each
Access percentage of the CDN server in each period should be approximate consistent.Therefore, the second default bar
Part includes：The standard deviation of the access percentage of the source IP address occurred in each period is less than
Preset standard is poor.
So, as shown in figure 5, judging that each summary information meets that the process of the second preparatory condition includes：
Step S501：Based on the source IP address set in each summary information, multiple source IPs undetermined are determined
Address.
As shown in fig. 6, the specific implementation procedure of this step includes：
Step S601：Based on the source IP address set in each summary information, reject not in each source IP
The source IP address occurred in address set.
In the source IP address set of the summary information of each period, there is each access in the period
The IP address of the access equipment of targeted website.Therefore, wherein the IP of multiple times source servers may be included
Location.Understood based on load balancing, time source IP address for returning source server should be equal in each period
Occur.Therefore, the source IP address not occurred in each period is excluded first, that is, is rejected not each
The source IP address occurred in source IP address set.
Step S602：By remaining multiple source IP address, it is defined as multiple source IP address undetermined；Wherein,
The source IP undetermined is the IP address of to be determined time source server.
After rejecting one or more source IP address in multiple source IP address set, remaining source IP address is equal
The possibility of promising time source IP address.Due under normal circumstances, it is also possible to there is client equal in different time sections
Access target website.Therefore, remaining multiple source IP address are defined as source IP address undetermined, and carried out
It is further to judge.
Fig. 5 is then returned to, into step S502：Calculate the mark that each source IP address undetermined corresponds to percentage
It is accurate poor.
The access percentage of each source IP address is calculated first.Have in summary information each in preset time period
First total access times of all access requests of individual access equipment, and all visits of each source IP address
Ask second total access times of request.By the second of a source IP address total access times divided by first total visit
Number is asked, can be to obtain the access percentage of a source IP address.By above-mentioned principle, can calculate
To each source IP address each period access percentage.
If if targeted website opens CDN service and uses load balancing, at least one source IP
Address should approximately equal in the access percentage of each period.Therefore, the application calculates source IP undetermined
The standard deviation of the corresponding percentage of address.
Step S503：It is poor that if standard deviation corresponding at least one source IP undetermined is less than preset standard, it is determined that
Open CDN service in targeted website corresponding with the target domain name.
Preset standard difference can be 0.01, can also be other numerical value certainly, do not limit herein.
It is poor that if standard deviation corresponding at least one source IP undetermined is less than preset standard, it is determined that at least one to treat
It is approximate consistent to determine source IP address access percentage in each period, hence, it can be determined that at least one
Source IP address undetermined is back source IP address.Determine that CDN service is opened in targeted website.
, can be by by the standard deviation of access percentage in addition, after it is determined that targeted website opens CDN service
The undetermined source IP address poor less than preset standard, is defined as back source IP address.
In the embodiment shown in above-mentioned Fig. 2, Fig. 3 and Fig. 4, judgement target is carried out based on source IP address
Whether CDN service is opened in website, it is to be understood that except the embodiment shown in Fig. 2, Fig. 3 and Fig. 4
In can also use other Rule of judgment.Discuss in detail below.
It is also found in applicant in research process：If the access request of client passes through CDN server,
Then the X-Forwarded-For fields in access request (follow-up abbreviation XFF fields) are theoretically non-NULL
's.Because XFF field references clients, i.e., the IP address of request end in access request.Normal condition
Under, because access request is without CDN server, therefore XFF fields are sky.Only please in access
When asking by HTTP Proxy or load-balanced server, XFF fields can be just added.
So if the access request of client passes through CDN server, XFF fields in access request
Theoretically non-NULL.Therefore, if CDN service is opened in a website, cloud platform receives the website
Each access request in XFF fields be theoretically non-NULL.That is, the total access time of the first of one website
Number is theoretically equal to the total non-NULL number of XFF fields.Therefore, can be with the summary information of each period
Including the total non-NULL number of XFF fields.
So the first preparatory condition and the second preparatory condition can also be that first total access times are equal to XFF words
The total non-NULL number of section.If if, it is determined that each access request of targeted website passes through CDN service
Device, hence, it can be determined that CDN service is opened in targeted website.
But although by during CDN server, it is necessary to add the IP of request end in the XFF fields
Location is a standard, and still, not all CDN server can perform according to standard.Therefore,
If determine whether targeted website is open-minded equal to the total non-NULL number of XFF fields according to by first total access times
CDN service, possible error are larger.
It is understood that cloud platform is based on existing summary information set corresponding with the target domain name,
And after whether the website as corresponding to above-described embodiment determines the target domain name opens CDN service, may be used also
To perform operations described below process.As shown in fig. 7, specifically include：
Step S701：Renewal summary information set corresponding with the target domain name.
Step S702：Based on the summary information set after renewal, redefine corresponding with the target domain name
Website whether open CDN service.
Because the access request of targeted website in cloud platform constantly changes, therefore, target can be regularly updated
The summary information set of website, and redefine whether targeted website opens CDN service by above-described embodiment.
Below with summary information include source IP address set, source IP address quantity, first total access times,
Exemplified by second total access times and the total non-NULL number of XFF fields, to cloud platform renewal and the aiming field
The process of summary information set describes in detail corresponding to name.As shown in figure 8, specifically include following step
Suddenly：
Step S801：The current access request that access equipment is sent to website in cloud platform is received, and is extracted
The characteristic information of the access request；Wherein, the source IP address of the characteristic information including access equipment,
Whether website domain name, access time and the XFF fields are empty.
In order to identify current access request, cloud platform can carry out feature extraction to current access request, from
And obtain the current characteristic information of current access request.Current characteristic information includes being used to send to access asking
The IP address for the access equipment asked, abbreviation source IP address；Access equipment is intended to access the website domain name of website；
Access equipment sends the access time of access request；And whether have content in XFF fields, if XFF words
Section is then empty, the non-NULL if XFF fields have content without content.
Step S802：In the case where the website domain name is target domain name, determined by the access time
Period corresponding with the characteristic information.
Because the characteristic information of the access request of different web sites is inconsistent, therefore, it is in the website domain name
In the case of target domain name, the just summary information set of meeting targeted website is updated.
For a website domain name, there is certain limit each period, if in current characteristic information
Access time be in the range of preset time period, it is determined that current characteristic information belongs to the period.
For example, access time is 12:Exemplified by 30, then it can determine that current characteristic information belongs to 12:00-13:00 this
The individual period.
Step S803：Update summary information corresponding to the period.
The summary information of each period specifically includes：Send and visit to the target domain name in preset time period
First total access times of request are asked, in the access request sent in preset time period to the target domain name
Total non-NULL number of XFF fields, the interior each access equipment for accessing the target domain name of preset time period
The source IP address set of IP address composition, the source IP address quantity in the source IP address set, and
Second total access times of each source IP address access target domain name in preset time period.
So, the process for updating summary information is：Due to sending an access request to targeted website, because
This first total access times for accessing website domain name adds 1.If if XFF field non-NULLs, XFF fields
Total non-NULL number add 1；If for XFF fields for sky, total non-NULL number of XFF fields is not added with 1.
The source IP address in characteristic information is determined whether in source IP address set；If so, then say
The bright IP address is already present in source IP address set, and corresponding to source IP address second is always accessed
Number adds 1.If nothing, illustrate that the IP address is not present in source IP address set, therefore, by source IP
Address is added in source IP address set, and source IP address quantity is added into 1.Then, one is increased with being somebody's turn to do
Second total access times corresponding to source IP address, and second total access times corresponding to the source IP address are set
For 1.
As shown in figure 9, present invention also provides a kind of identification device of content distributing network, including：
Acquiring unit 91, for obtaining summary information corresponding with target domain name；Wherein, it is described to collect letter
Breath includes accessing the source IP address set of the access equipment of the target domain name in preset time period；
First determining unit 92, if being predetermined number for the source IP address quantity in the summary information,
Then after judging to meet the first preparatory condition, determine that content is opened in targeted website corresponding to the target domain name
Distribution network CDN service.Wherein, the predetermined number can be 1.
As shown in Figure 10, a kind of identification device of content distributing network of the application, including：
First determines aggregation units 101, for determining summary information set corresponding with the target domain name,
The summary information set includes the summary information, and corresponding with the target domain name other collects
Information.
Then first determining unit 92, specifically for determining each to collect letter in the summary information set
Source IP address quantity in breath is predetermined number, after judging to meet the first preparatory condition, it is determined that described
Open content distribution network CDN service in targeted website corresponding to target domain name；Wherein, it is described to judge to meet
First preparatory condition includes：Judge the source IP address all same in each summary information.
It is determined that source IP address unit 102 is returned, for will any summary information corresponding with the target domain name
In source IP address, be defined as back source server return source IP address.
As shown in figure 11, a kind of identification device of content distributing network of the application includes：
Second determines aggregation units 111, if non-default for the source IP address quantity in the summary information
Quantity, it is determined that summary information set corresponding with the target domain name；The summary information set includes
The summary information and other summary informations corresponding with the target domain name, and, each summary information
The duration of corresponding preset time period is identical.
Second determining unit 112, for after judging to meet the second preparatory condition, determining the target domain name
Open content distribution network CDN service in corresponding targeted website.
As shown in figure 12, second determining unit 112 specifically includes：Pending address unit 121 is determined,
For based on the source IP address set in each summary information, determining multiple source IP address undetermined；
Computing unit 122, the standard of access times percentage is corresponded to for calculating each source IP address undetermined
Difference；
It is determined that CDN service unit 123 is opened, if small for standard deviation corresponding at least one source IP undetermined
It is poor in preset standard, it is determined that to open CDN service in targeted website corresponding with the target domain name.
Wherein, the determination pending address unit, specifically for based on the source IP in each summary information
Location is gathered, and rejects the source IP address not occurred in each source IP address set；It is determined that will be remaining more
Individual source IP address, it is defined as multiple source IP address undetermined；Wherein, the source IP undetermined is treated for expression
It is determined that return the IP address of source server.
It is determined that returning source IP address unit 102, it is additionally operable to the standard deviation of access percentage being less than preset standard
The source IP address undetermined of difference, is defined as back source IP address.
In the present apparatus, the summary information also includes sending to the target domain name in preset time period visiting
First total access times of request are asked, in the access request sent in preset time period to the target domain name
Total non-NULL number of XFF fields；
Then first preparatory condition and second preparatory condition include：First in the summary information
Total access times are equal to total non-NULL number of XFF fields.
As shown in figure 13, the application also provides a kind of processing equipment, including：
Processor 131 and the memory 132 being connected with the processor 131.
The memory 132, for storing summary information corresponding with target domain name.
Residing processor 131, for obtaining summary information corresponding with target domain name from the memory；
Wherein, the summary information includes the source IP that the access equipment of the target domain name is accessed in preset time period
Address set；If the source IP address quantity in the summary information is predetermined number, judging to meet the
After one preparatory condition, determine that content distributing network CDN clothes are opened in targeted website corresponding to the target domain name
Business.
By the above, it can be found that this application provides following technological means：
Present inventor has found whether targeted website opens CDN service and access target net by studying
The source IP address stood is relevant, therefore the source IP address of the application access target website is to determine targeted website
It is no to open CDN server.Because the application is not recorded using DNS, it is therefore not necessary to which being entangled with makes
CNAME records or A in being recorded with DNS are recorded to verify whether website opens CDN service；
Also, the identification method that the application provides is extracted using CNAME records and A records to realize CDN
The general character of service, therefore, it can both be identified using CNAME records using the application to realize CDN
The mode of service, it can also identify by the way of A records realize CDN service, so as to convenient
Cloud platform judges whether website increases CDN service.
If the function described in the present embodiment method is realized in the form of SFU software functional unit and as independent
Production marketing in use, can be stored in a computing device read/write memory medium.Based on so
Understanding, the part or the part of the technical scheme that the embodiment of the present application contributes to prior art can
To be embodied in the form of software product, the software product is stored in a storage medium, if including
Dry instruction to cause a computing device (can be personal computer, server, mobile computing device
Or network equipment etc.) perform each embodiment methods described of the application all or part of step.It is and preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can
With the medium of store program codes.
Each embodiment is described by the way of progressive in this specification, and each embodiment stresses
The difference with other embodiments, between each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use
The application.A variety of modifications to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can in the case where not departing from spirit herein or scope,
Realize in other embodiments.Therefore, the application is not intended to be limited to the embodiments shown herein,
And it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (15)
- A kind of 1. recognition methods of content distributing network, it is characterised in that including：Obtain summary information corresponding with target domain name；Wherein, the summary information includes preset time period The source IP address set of the interior access equipment for accessing the target domain name；If the source IP address quantity in the summary information is predetermined number, judging to meet that first is default After condition, determine that content distribution network CDN service is opened in targeted website corresponding to the target domain name.
- 2. the method as described in claim 1, it is characterised in that the predetermined number is 1.
- 3. method as claimed in claim 2, it is characterised in that obtaining converge corresponding with target domain name Also include after total information：It is determined that summary information set corresponding with the target domain name, the summary information set includes described Summary information, and other summary informations corresponding with the target domain name；It is determined that the source IP address quantity in the summary information set in each summary information is present count It is described to judge to meet that the first preparatory condition includes after amount：Judge the source IP address all same in each summary information.
- 4. method as claimed in claim 2 or claim 3, it is characterised in that it is determined that the target domain name pair After content distribution network CDN service is opened in the targeted website answered, in addition to：By the source IP address in any summary information corresponding with the target domain name, it is defined as back source service Device returns source IP address.
- 5. method as claimed in claim 2, it is characterised in that also include：If the non-default quantity of source IP address quantity in the summary information, it is determined that with the target domain name Corresponding summary information set；The summary information set include the summary information and with the target Other summary informations corresponding to domain name, and, the duration of preset time period is identical corresponding to each summary information；After judging to meet the second preparatory condition, it is interior to determine that targeted website corresponding to the target domain name is opened Content distributing network CDN service.
- 6. method as claimed in claim 5, it is characterised in that described to judge to meet the second preparatory condition Including：Based on the source IP address set in each summary information, multiple source IP address undetermined are determined；Calculate the standard deviation that each source IP address undetermined corresponds to access times percentage；It is poor that if standard deviation corresponding at least one source IP undetermined is less than preset standard, it is determined that with the target Domain name corresponds to targeted website and opens CDN service.
- 7. method as claimed in claim 6, it is characterised in that described based in each summary information Source IP address set, determine that multiple source IP address undetermined include：Based on the source IP address set in each summary information, reject not in each source IP address set The source IP address of appearance；By remaining multiple source IP address, it is defined as multiple source IP address undetermined；Wherein, the source undetermined IP is used for the IP address for representing to be determined time source server.
- 8. method as claimed in claim 6, it is characterised in that also include：The standard deviation of access percentage is less than to the source IP address undetermined of preset standard difference, is defined as back source IP Address.
- 9. method as claimed in claim 5, it is characterised in that when the summary information also includes default Between the introversive target domain name of section send first total access times of access request, to institute in preset time period State total non-NULL number of XFF fields in the access request of target domain name transmission；Then the first preparatory condition or second preparatory condition include：First total access times in the summary information are equal to total non-NULL number of XFF fields.
- A kind of 10. identification device of content distributing network, it is characterised in that including：Acquiring unit, for obtaining summary information corresponding with target domain name；Wherein, the summary information Including the source IP address set for the access equipment that the target domain name is accessed in preset time period；First determining unit, if being predetermined number for the source IP address quantity in the summary information, After judging to meet the first preparatory condition, determine that content point is opened in targeted website corresponding to the target domain name Hairnet network CDN service.
- 11. device as claimed in claim 10, it is characterised in that the predetermined number is 1.
- 12. device as claimed in claim 11, it is characterised in that also include：First determines aggregation units, for determining summary information set corresponding with the target domain name, institute State summary information set and include the summary information, and corresponding with the target domain name other collect letter Breath；Then first determining unit, specifically for determining each summary information in the summary information set In source IP address quantity be predetermined number, judge meet the first preparatory condition after, determine the mesh Open content distribution network CDN service in targeted website corresponding to mark domain name；Wherein, it is described to judge to meet the One preparatory condition includes：Judge the source IP address all same in each summary information.
- 13. device as claimed in claim 11, it is characterised in that also include：Second determines aggregation units, if for the non-default quantity of source IP address quantity in the summary information, Then determine summary information set corresponding with the target domain name；The summary information set includes the remittance Total information and other summary informations corresponding with the target domain name, and, corresponding to each summary information The duration of preset time period is identical；Second determining unit, for after judging to meet the second preparatory condition, determining the target domain name pair Open content distribution network CDN service in the targeted website answered.
- 14. device as claimed in claim 13, it is characterised in that the summary information also includes default Send first total access times of access request in period to the target domain name, in preset time period to Total non-NULL number of XFF fields in the access request that the target domain name is sent；Then first preparatory condition and second preparatory condition include：First in the summary information Total access times are equal to total non-NULL number of XFF fields.
- A kind of 15. processing equipment, it is characterised in that including：Processor and the memory being connected with the processor；The memory, for storing summary information corresponding with target domain name；Residing processor, for obtaining summary information corresponding with target domain name from the memory；Its In, the summary information is with including the source IP that the access equipment of the target domain name is accessed in preset time period Gather location；If the source IP address quantity in the summary information is predetermined number, judging to meet first After preparatory condition, determine that content distribution network CDN service is opened in targeted website corresponding to the target domain name.
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