CN102572002B - Dynamic domain name update method and system - Google Patents
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Abstract
The embodiment of the invention discloses a kind of dynamic domain name update method and system, wherein, dynamic domain name update method comprises: access switch receives the charging message that radius client sends, and this charging message is mirrored to trigger server, described charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information; Trigger server analyser is as the type information that rolls off the production line in charging message, and type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line; When the upper type that rolls off the production line is for reaching the standard grade, described trigger server instruction domain name server (DNS) carries out domain name binding to described IP address and domain name; When the upper type that rolls off the production line is for rolling off the production line, the domain name that described trigger server instruction DNS cancels described IP address and domain name is bound.The embodiment of the present invention can use unified URL navigation system to position using each domestic terminal apparatus of dynamic IP addressing.
Description
Technical field
The present invention relates to the communication technology, especially a kind of dynamic domain name update method and system.
Background technology
Along with the development that deepens continuously of telecom operators' service transformation, (InternetProtocol, hereinafter referred to as the IP) application service of network to release increasing internet protocol-based gradually.At present, increasing domestic terminal apparatus uses the application service in IP network, such as: domestic video monitoring equipment, Household intelligent appliances control appliance etc.Wherein, on domestic terminal apparatus, the business characteristic of application service is that domestic terminal apparatus is dispersed in each user dwelling, for the ease of managing and save day by day rare IP address resource to user, telecom operators adopt dynamical fashion to domestic terminal apparatus distributing IP address usually.
In order to locate the domestic terminal apparatus that IP address constantly changes in the Internet, the method that prior art adopts is: each domestic terminal apparatus is behind acquisition IP address, adopt inner proprietary protocol to carry out the IP address of registering oneself to the business platform in the operation system of each domestic terminal apparatus place, need the user terminal needs conducted interviews to this domestic terminal apparatus to obtain the IP address of accessed domestic terminal apparatus from the business platform this domestic terminal apparatus place operation system.
Realizing in process of the present invention, inventor finds that the method that above-mentioned prior art adopts at least exists following problem:
Owing to adopting proprietary protocol to carry out information interaction in each operation system between business platform and domestic terminal apparatus, such as: global eye, the proprietary protocol adopted between different business systems is different, there is not interoperability; When domestic terminal apparatus carries out the IP address of registering oneself by broadband dialup connection to business platform, cannot the situation of change of perception broadband dial-up connection, need periodically to initiate registration request to business platform, larger expense is brought to domestic terminal apparatus and business platform, have impact on the service behaviour of domestic terminal apparatus and business platform; Different business platform needs different Accreditation Systems, unified URL(Uniform Resource Locator) (UniformResourceLocator cannot be used, hereinafter referred to as: URL) each domestic terminal apparatus is positioned, to operator's organic integration miscellaneous service system for user provides abundant value-added service to bring restriction.
Summary of the invention
Embodiment of the present invention technical problem to be solved is: provide a kind of dynamic domain name update method and system, to use unified URL to position using each domestic terminal apparatus of dynamic IP addressing.
A kind of dynamic domain name update method that the embodiment of the present invention provides, comprising:
Access switch receives long-distance user and dials in the charging message that authentication service radius client sends, and this charging message is mirrored to trigger server, described charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information;
Trigger server analyser is as the type information that rolls off the production line in charging message, and type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line;
When the upper type that rolls off the production line is for reaching the standard grade, described trigger server instruction domain name server (DNS) carries out domain name binding to described IP address and domain name;
When the upper type that rolls off the production line is for rolling off the production line, the domain name that described trigger server instruction DNS cancels described IP address and domain name is bound.
A kind of dynamic domain name update system that the embodiment of the present invention provides, comprise access switch and dynamic domain name service DDNS system, described DDNS system comprises trigger server and DNS;
Described access switch, for receiving the charging message that radius client sends, and is mirrored to described trigger server by this charging message, described charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information;
Described trigger server, for analyser as the type information that rolls off the production line in charging message, type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line; When the upper type that rolls off the production line is for reaching the standard grade, described DNS is indicated to carry out domain name binding to described IP address and domain name; When the upper type that rolls off the production line is for rolling off the production line, the domain name indicating described DNS to cancel described IP address and domain name is bound;
Described DNS, binds for the domain name of carrying out domain name binding according to the instruction of described trigger server to described IP address and domain name or cancelling described IP address and domain name.
Based on the dynamic domain name update method and system that the above embodiment of the present invention provides, the charging message that radius client sends is mirrored to trigger server, reach the standard grade or roll off the production line according to carrying the type information identification user terminal that rolls off the production line in charging message, thus carry out domain name binding or the domain name cancelled between IP address and domain name is bound according to IP address in charging message is corresponding to domain name, thus realize upgrading in time of domain name binding, compared with prior art, because all user terminals all carry out domain name binding by trigger server by DNS, therefore the communication protocol adopted between user terminal and trigger server is unified, there is not inter-communicating problem, because trigger server carries out domain name Binding Update by means of the charging message of user terminal normal communications traffic, user terminal is without the need to initiating IP address registration request periodically separately, will extra expense be brought to thus user terminal and whole communication system, ensure that the service behaviour of user terminal and communication system, and, the domain name binding of all user terminals is all undertaken by same DNS with domain name mapping, unified URL can be used the user terminal adopting dynamic IP addressing, comprise various domestic terminal apparatus, position, contributing to operator's organic integration miscellaneous service system for user provides abundant value-added service.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a dynamic domain name update method of the present invention embodiment;
Fig. 2 is the structural representation of another embodiment of dynamic domain name update method of the present invention;
Fig. 3 is the structural representation of another embodiment of dynamic domain name update method of the present invention;
Fig. 4 is the structural representation of a dynamic domain name update system of the present invention embodiment;
Fig. 5 is the flow chart of a DDNS system of the present invention Application Example;
Fig. 6 is the flow chart of DDNS system Another application embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Domain name for name the transmission control protocols such as internet (Internet) (TransmissionControlProtocol, hereinafter referred to as: in TCP)/IP network, be organized into the computer and network service in domain hierarchy structure.By domain name, people are convenient to the service of memory computer and network.But can only be familiar with mutually IP address between computer, this just needs by the conversion realizing from territory to IP address, and this conversion work is called domain name mapping.One to one or many-to-one corresponding relation on the internet between domain name and IP address.When user input in the application user-friendly title also namely domain name time, name server (DomainNameServer, hereinafter referred to as: can, according to the corresponding relation between domain name and IP address, be DNS) corresponding IP address by this name resolving.
Dynamic domain name service (DynamicDomainNameServer, hereinafter referred to as: be DDNS) dynamic IP addressing of user be mapped on a fixing DNS, the IP of DDNS object is dynamic, is random fluctuation.During each interconnection network of user terminal, the i.e. dynamic IP addressing that this user terminal will be changed by information transmission by the client-side program on user terminal at every turn sends the server program be positioned on service provider's main frame to, server program is responsible for providing DNS, catch user terminal IP address, then the corresponding relation between this dynamic IP addressing and domain name is set up, that is: this dynamic IP addressing and domain name are carried out domain name binding, like this, other Internet users just can carry out information interchange by the domain name of this user terminal.
Long-distance user dials in authentication service (RemoteAuthenticationDialInUserService, hereinafter referred to as: RADIUS) by RFC2865, RFC2866 standard definition, current most widely used authentication, authorization, accounting (Authentication, Authorization, Accounting, hereinafter referred to as: AAA) agreement.RADIUS be a kind of adopt client/server (Client/Server, hereinafter referred to as: the C/S) agreement of structure, the computer of any operation radius client software is all the client of RADIUS.Radius protocol authentication mechanism is flexible, password authentication protocol (PasswordAuthenticationProtocol can be adopted, hereinafter referred to as: PAP), challenge handshake authentication protocol (ChallengeHandshakeAuthenticationProtocol, hereinafter referred to as: CHAP) or the various ways such as Unix operating system login authentication.RADIUS is a kind of extendible agreement, and whole work that it carries out, all based on the vector of attribute-Length-Value (Attribute-Length-Value), also support that manufacturer expands producer's proprietary attribute.
Fig. 1 is the structural representation of a dynamic domain name update method of the present invention embodiment.As shown in Figure 1, the dynamic domain name update method of this embodiment comprises following flow process:
Step 101, access switch receives the charging message that radius client sends, and this charging message is mirrored to trigger server.
Wherein, charging message comprise the IP address information of this user terminal, domain name and on to roll off the production line type information, type information that this rolls off the production line shows that this user terminal is reached the standard grade or rolled off the production line.User terminal is reached the standard grade, and shows user terminal access communications network; User terminal rolls off the production line, and shows that user terminal disconnects communication network and connects.In various embodiments of the present invention, user terminal corresponds to the user using this user terminal, and therefore, the IP address of user terminal, domain name are IP address, the domain name of user terminal user.
Step 102, roll off the production line in the mirror image charging message that trigger server analysis access switch mirror image obtains type information, and type that this identification is rolled off the production line is for reaching the standard grade or rolling off the production line.If on roll off the production line type for reaching the standard grade, perform step 103.Otherwise, if on roll off the production line type for rolling off the production line, perform step 104.
Step 103, trigger server instruction DNS carries out domain name binding to the IP address in mirror image charging message and domain name.Afterwards, the follow-up flow process of the present embodiment is no longer performed.
Particularly, after DNS receives the domain name binding instruction of trigger server transmission, the corresponding relation in the charging message that establishes mirror image between IP address and domain name also stores, thus the domain name realized between this IP address and domain name is bound.
Step 104, the IP address in trigger server instruction DNS cancellation mirror image charging message and the domain name of domain name are bound.
Particularly, after DNS receives the cancellation domain name binding instruction of trigger server transmission, delete the corresponding relation between IP address and domain name in the mirror image charging message stored, that is: delete the corresponding relation comprising this IP address, thus the domain name that realization is cancelled between this IP address and domain name is bound.
In the dynamic domain name update method that the above embodiment of the present invention provides, the charging message that radius client sends is mirrored to trigger server, reach the standard grade or roll off the production line according to carrying the type information identification user terminal that rolls off the production line in charging message, thus carry out domain name binding or the domain name cancelled between IP address and domain name is bound according to IP address in charging message is corresponding to domain name, thus realize upgrading in time of domain name binding, because all user terminals all carry out domain name binding by trigger server by DNS, therefore the communication protocol adopted between user terminal and trigger server is unified, there is not inter-communicating problem, because trigger server carries out domain name Binding Update by means of the charging message of user terminal normal communications traffic, user terminal is without the need to initiating IP address registration request periodically separately, will extra expense be brought to thus user terminal and whole communication system, ensure that the service behaviour of user terminal and communication system, and, the domain name binding of all user terminals is all undertaken by same DNS with domain name mapping, unified URL can be used the user terminal adopting dynamic IP addressing, comprise various domestic terminal apparatus, position, contributing to operator's organic integration miscellaneous service system for user provides abundant value-added service.
According to another specific embodiment of dynamic domain name update method of the present invention, in the embodiment flow process shown in Fig. 1, access switch is specially the RADIUS access switch based on radius protocol, BAS Broadband Access Server (BroadbandRemoteAccessServer, hereinafter referred to as: be provided with radius client BRAS), charging message is specially the charging message that radius client sends to radius server.As shown in Figure 2, for the present invention is based on the structural representation of another embodiment of dynamic domain name update method of RADIUS, it comprises following flow process:
Step 201, BRAS receives the access request that user terminal sends, and this access request comprises for the IP address information of user terminal distribution, the user account number of this user terminal user and password.
Step 202, BRAS carries out certification to user account number and password.If user account number and password, by certification, perform step 203.Otherwise if user account number and password be not by certification, do not perform the follow-up flow process of the present embodiment, further, BRAS can also to corresponding user account number and/or the password of returning of user terminal by the authentication result message of certification.
Step 203, BRAS generates accounting start request and sends to radius server, and accounting start request comprises IP address information, the user account number of user terminal and information of reaching the standard grade.In this embodiment, charging message is specially accounting start request, and that is, this accounting start request belongs to the one in charging message, and domain name is specially user account number, and the type that above rolls off the production line is specially reaches the standard grade.
Step 204, RADIUS access switch receives the accounting start request that BRAS sends to radius server, and this accounting start request is mirrored to trigger server.
Mirror image accounting start request after mirror image is identical with former accounting start request, comprise equally the IP address information of user terminal, domain name and on to roll off the production line type information.
Step 205, roll off the production line in the mirror image accounting start request that trigger server analysis RADIUS access switch mirror image obtains type information.
Step 206, rolls off the production line type for reaching the standard grade in mirror image accounting start request, and therefore, trigger server sends domain name binding instruction to DNS, and instruction DNS carries out domain name binding to the IP address in mirror image accounting start request and domain name.
Step 207, DNS establishes mirror image the corresponding relation in accounting start request between IP address and domain name storing, thus the domain name realized between this IP address and domain name is bound.
Because radius protocol is simply clear and definite, extendible, plain old telephone online, Asymmetrical Digital Subscriber Line (AsymmetricDigitalSubscriberLine are widely used at present, hereinafter referred to as: ADSL) online, partial wideband online, IP phone, based on dial user Virtual Private Dialup Network business (VirtualPrivateDialupNetworks, hereinafter referred to as: VPDN), the business such as mobile phone pre-payment, wireless network access authentication.The embodiment of the present invention carries out domain name renewal based on radius protocol, subscriber terminal equipment directly and DDNS system carry out alternately, there is not protocol-compliant sex chromosome mosaicism; Carry out domain name renewal by unified DNS, achieve the unified URL location of dynamic IP addressing subscriber terminal equipment; Circumvent and, monitor owing to have employed the mode of the message of radius server of sending to, any transformation do not needed to original communication network, any harmful effect can not be caused to legacy network.
As another specific embodiment of the present invention, by step 204, after trigger server receives the mirror image accounting start request of RADIUS access switch transmission, can according to presetting, judge whether that needing to carry out domain name to accounting start request binds triggering by user account number in mirror image accounting start request, such as: only domain name binding is carried out to preset format or the user account number that comprises preset field, only when determining according to user account number in mirror image accounting start request to need to carry out domain name binding triggering to mirror image accounting start request, just perform step 205, perform follow-up domain name binding flow process.Like this, can realize only supporting that part user terminal uses DDNS binding function after reaching the standard grade.
In addition, after the DNS corresponding relation set up between IP address and domain name also stores, by DNS client to the domain name binding situation on DNS, such as: domain name binding time, quantity, particular content etc., can inquire about.
Be applied to based on the dynamic domain name update embodiment of the method for RADIUS shown in Fig. 2 and transmit point-to-point protocol (Point-to-PointProtocoloverEthernet by Ethernet, hereinafter referred to as: PPPoE) during dial business, before flow process embodiment illustrated in fig. 2, user terminal can send access request by PPPoE dial business to BRAS, comprising user account number and the password of the IP address information of distributing for user terminal, user terminal user.
Further, as shown in Figure 3, for the present invention is based on the structural representation of another embodiment of dynamic domain name update method of RADIUS, it comprises following flow process:
Step 301, BRAS receives the rolling off the production line request that user terminal sends, and this request of rolling off the production line comprises IP address information for user terminal distribution and the user account number of this user terminal user.
Step 302, BRAS generates charging ending request and also sends to radius server, and charging ending request comprises the IP address information of user terminal, user account number and offline information.In this embodiment, charging message is specially charging ending request, and that is, this charging ending request also belongs to the one in charging message, and domain name is specially user account number, and the type that above rolls off the production line is specially and rolls off the production line.
Step 303, RADIUS access switch receives the charging ending request that BRAS sends to radius server, and this charging ending request is mirrored to trigger server.
Mirror image charging ending request after mirror image is identical with former charging ending request, comprise equally the IP address information of user terminal, domain name and on to roll off the production line type information.
Step 304, roll off the production line in the mirror image charging ending request that trigger server analysis RADIUS access switch mirror image obtains type information, and type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line.
Step 305, rolls off the production line type for rolling off the production line in mirror image charging ending request, and therefore, trigger server cancels domain name binding instruction to DNS transmission, and the IP address in instruction DNS cancellation mirror image charging ending request and the domain name of domain name are bound.
Step 306, DNS deletes the corresponding relation in the mirror image charging ending request stored between IP address and domain name, that is: delete the corresponding relation comprising this IP address, thus the domain name that realization is cancelled between this IP address and domain name is bound.
Because radius protocol is simply clear and definite, extendible, plain old telephone online, ADSL online, partial wideband online, IP phone, the business such as VPDN, mobile phone pre-payment, wireless network access authentication based on dial user are widely used at present.Carry out domain name renewal based on Radius agreement, subscriber terminal equipment directly and DDNS system carry out alternately, there is not protocol-compliant sex chromosome mosaicism; Carry out domain name renewal by unified DNS, achieve the unified URL location of dynamic IP addressing subscriber terminal equipment.
In addition, after flow process embodiment illustrated in fig. 3 also can occur in flow process embodiment illustrated in fig. 2, the embodiment obtained by Fig. 2 and combination embodiment illustrated in fig. 3, describe from accessing user terminal to network to leaving the complete operation flow of network, to a renewal of DDNS binding, achieve upgrading in time of the domain name binding of the user terminal to employing dynamic IP addressing.
Further, by the dynamic domain name update method of the various embodiments described above of the present invention, after carrying out domain name binding to adopting the user terminal of dynamic IP addressing, other user utilizes third party device, when needing the user terminal by domain name access employing dynamic IP addressing, just can in the following manner, by DNS, the domain name of accessed user terminal be resolved, DNS receives the DNS request that third party device sends, and this DNS request comprises the domain-name information of user terminal to be visited; DNS is from the corresponding relation between the IP address stored and domain name, and the IP address that in acquisition DNS request, domain name is corresponding also returns third party device, and third party device, by the IP address of this correspondence, just can access the user terminal on this IP address.
In addition, state on the invention in embodiment, user can set up the corresponding relation between the user account number of oneself and the pet name oneself liked in advance and store in the user terminal, when user terminal initiates access request before reaching the standard grade, user account number in access request can be mapped to the pet name that in corresponding relation, user likes, like this, by dynamic domain name update method of the present invention, what set up is domain name binding relationship between the IP address of user and the pet name, the service that third party device can provide based on this pet name access relative users terminal, corresponding domain name mapping is carried out based on this pet name by DNS, meet the individual demand of user.
Fig. 4 is the structural representation of a dynamic domain name update system of the present invention embodiment.The dynamic domain name update system of this embodiment can be used in the present invention the flow process of above-mentioned each dynamic domain name update embodiment of the method.As shown in Figure 4, it comprises access switch 1 and DDNS system 2, and this DDNS system 2 comprises trigger server 401 and DNS402.Wherein, the charging message that access switch 1 sends for receiving user terminal, and is mirrored to trigger server 401 by this charging message, this charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information.Trigger server 401 is for the type information that rolls off the production line in the mirror image charging message analyzing access switch 1 mirror image and obtain, and type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line; When the upper type that rolls off the production line is for reaching the standard grade, instruction DNS402 carries out domain name binding to the IP address in mirror image charging message and domain name; When the upper type that rolls off the production line is for rolling off the production line, the IP address in instruction DNS402 cancellation mirror image charging message and the domain name of domain name are bound.DNS402 is used for according to the instruction of trigger server 401, and the domain name of carrying out domain name binding to the IP address in mirror image charging message and domain name or cancelling IP address and domain name is bound.
In the dynamic domain name update system that the above embodiment of the present invention provides, the charging message that radius client sends is mirrored to trigger server, reach the standard grade or roll off the production line according to carrying the type information identification user terminal that rolls off the production line in charging message, thus carry out domain name binding or the domain name cancelled between IP address and domain name is bound according to IP address in charging message is corresponding to domain name, thus realize upgrading in time of domain name binding, because all user terminals all carry out domain name binding by trigger server by DNS, therefore the communication protocol adopted between user terminal and trigger server is unified, there is not inter-communicating problem, because trigger server carries out domain name Binding Update by means of the charging message of user terminal normal communications traffic, user terminal is without the need to initiating IP address registration request periodically separately, will extra expense be brought to thus user terminal and whole communication system, ensure that the service behaviour of user terminal and communication system, and, the domain name binding of all user terminals is all undertaken by same DNS with domain name mapping, unified URL can be used the user terminal adopting dynamic IP addressing, comprise various domestic terminal apparatus, position, contributing to operator's organic integration miscellaneous service system for user provides abundant value-added service.
Corresponding to embodiment of the method shown in Fig. 2, as another embodiment of dynamic domain name update system of the present invention, in the system embodiment of dynamic domain name update shown in Fig. 4, access switch 1 is specially RADIUS access switch; Dynamic domain name update system also comprises BRAS3, and this BRAS3 comprises radius client, and charging message is specially the charging message that radius client sends to radius server.Correspondingly, the access request that BRAS3 sends for receiving user terminal, this access request comprises the IP address information of user terminal, the user account number of user terminal user and password; And certification is carried out to the user account number in access request and password, and after user account number and password pass through certification, generate accounting start request and send to radius server, this accounting start request comprises IP address information, the user account number of user terminal and information of reaching the standard grade, in this embodiment, charging message is specially accounting start request, and domain name is specially user account number, and the type that above rolls off the production line is specially reaches the standard grade.RADIUS access switch 1 sends to the accounting start request of radius server specifically for receiving BRAS3, and this accounting start request is mirrored to trigger server.
Corresponding to embodiment of the method shown in Fig. 3, as another embodiment of dynamic domain name update system of the present invention, in the system embodiment of dynamic domain name update shown in Fig. 4, access switch 1 is specially RADIUS access switch; Dynamic domain name update system also comprises BRAS3, and this BRAS3 comprises radius client, and charging message is specially the charging message that radius client sends to radius server.Correspondingly, the request of rolling off the production line that BRAS3 sends for receiving user terminal, this request of rolling off the production line comprises the IP address information of user terminal and the user account number of user terminal user; And generate charging ending request and send to radius server, this charging ending request comprises the IP address information of user terminal and user account number and offline information, and in this embodiment, charging message is specially charging ending request, domain name is specially user account number, and the type that above rolls off the production line is specially and rolls off the production line.RADIUS access switch 1 sends to the charging ending request of radius server specifically for receiving BRAS, and this accounting start request is mirrored to trigger server 401.
With the above-mentioned each dynamic domain name update embodiment of the method for the present invention correspondingly, DNS402 can also be used for the DNS request receiving third party device transmission, this DNS request comprises domain-name information, the IP address corresponding with obtaining domain name in DNS request the corresponding relation between domain name from the IP address stored also returns third party device, so that the user terminal of the IP address using domain name in DNS request corresponding provides abundant value-added service to user.
In the embodiment of the present invention, user/increased value service system domain name mapping flow process comprises: need to carry out domain name mapping to terminal for user or increased value service system, when obtaining the dynamic IP addressing of terminal, only need initiate conventional DNS request to DNS, DNS will directly return to the IP address of associated dns name.Whole process and static DNS system are without any difference, and therefore user side does not need to install any extra application software, and original software systems do not need to do any change yet.
In addition, the DDNS system 2 in the various embodiments described above of the present invention can also be used for the dynamic domain name update adopting static ip address user terminal.As shown in Figure 5, for DDNS system of the present invention for adopting the dynamic domain name update of static ip address user terminal time, the flow chart of an Application Example, it comprises following flow process:
Step 501, business support system (BusinessSupportSystems, hereinafter referred to as: the BSS) static ip address of user terminal of system receives user input and domain-name information.When this static ip address and domain name can be user's log on business, by operator for it distributes static ip address and domain name.
Step 502, BSS system sends domain name bind request to trigger server, and this domain name bind request comprises static ip address and the domain-name information of user terminal.
Step 503, trigger server sends domain name binding instruction to DNS, and instruction DNS carries out domain name binding to this static ip address and domain name.Domain name binding instruction comprises above-mentioned static ip address and domain-name information.
Step 504, DNS sets up the corresponding relation in domain name binding instruction between static ip address and domain name and stores, thus realizes the domain name binding between this static ip address and domain name.
Step 505, the cancellation IP Address requests that BSS system receives user sends, this cancellation IP Address requests can be initiated when not needing the Network of request for utilization by user, cancels the static ip address information that IP Address requests comprises needs cancellation.
Step 506, BSS system forwards to trigger server cancels domain name bind request, and this cancellation domain name bind request comprises the static ip address information that needs are cancelled.
Step 507, trigger server sends to DNS cancels domain name binding instruction, indicates DNS to cancel and binds the domain name of this static ip address, cancel domain name binding instruction and comprise above-mentioned static ip address information.
Step 508, DNS deletes the corresponding relation in the cancellation domain name binding instruction of storage between static ip address and domain name, that is: delete the corresponding relation comprising this static ip address, thus realizes the domain name binding of cancellation between this static ip address and domain name.
In addition, the DDNS system 2 in the various embodiments described above of the present invention can also be used for the dynamic domain name update realizing user terminal active mode.As shown in Figure 6, for DDNS system of the present invention for realizing the dynamic domain name update of user terminal active mode time, the flow chart of Another application embodiment, it comprises following flow process:
Step 601, after user terminal is connected to internet, with the first preset time period for the cycle, regularly send DDNS logging request to trigger server, this DDNS logging request comprises the domain name of user terminal user and the dynamic IP addressing information of distributing for user terminal.
Step 602, trigger server is verified the dynamic IP addressing in DDNS logging request and domain name, such as: whether effectively to verify this dynamic IP addressing and domain name, whether form meets pre-provisioning request form, etc.If the dynamic IP addressing in DDNS logging request and domain name, by verifying, perform step 603.Otherwise, if the dynamic IP addressing in DDNS logging request and/or domain name be not by checking, do not perform the follow-up flow process of the present embodiment, further, trigger server can return dynamic IP addressing and/or the result message of domain name not by verifying to user terminal.
Step 603, trigger server sends domain name binding instruction to DNS, and instruction DNS carries out domain name binding to the dynamic IP addressing in DDNS logging request and domain name.Domain name binding indicates the dynamic IP addressing and domain-name information that comprise in DDNS logging request.
Step 604, DNS sets up the corresponding relation in domain name binding instruction between dynamic IP addressing and domain name and stores, and returns the response message of binding success to trigger server.
Step 605, after trigger server receives the response message of binding success, carries out timing by a timer, judges the DDNS logging request whether receiving user terminal transmission in the second preset time period.Such as: this timer also can be specifically a counter, to this counter O reset when trigger server receives the DDNS logging request of user terminal transmission, otherwise, 1 was added to this counter in every 5 minutes, can think when this counter is added to 4 in the second preset time period, not receive the DDNS logging request that user terminal sends, think that this user terminal rolls off the production line.If do not receive the DDNS logging request that user terminal sends in the second preset time period, perform step 606.Otherwise, if receive the DDNS logging request of user terminal transmission in the second preset time period, do not perform the follow-up flow process of the present embodiment.
Step 606, trigger server sends to DNS cancels domain name binding instruction, indicates DNS to cancel and binds the domain name of dynamic IP addressing in DDNS logging request, cancel domain name binding and indicate the dynamic IP addressing information comprised in above-mentioned DDNS logging request.
Step 607, DNS deletes the corresponding relation in the cancellation domain name binding instruction of storage between dynamic IP addressing and domain name, that is: delete the corresponding relation comprising this dynamic IP addressing, thus realizes the domain name binding of cancellation between this dynamic IP addressing and domain name.
A specific embodiment of the user terminal in the various embodiments described above of the present invention is various domestic terminal apparatus, and therefore, various embodiments of the present invention especially may be used for realizing adopting the domestic terminal apparatus of dynamic IP addressing to carry out DDNS Binding Update.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.For system embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The protocol compatibility that the embodiment of the present invention can avoid employing proprietary protocol to cause and system inter-communicating problem, user terminal is without the need to initiating IP address registration request periodically separately, will extra expense be brought to thus user terminal and whole communication system, ensure that the service behaviour of user terminal and communication system; And, the domain name binding of all user terminals is all undertaken by same DNS with domain name mapping, unified URL can be used the user terminal adopting dynamic IP addressing, comprise various domestic terminal apparatus, position, contributing to operator's organic integration miscellaneous service system for user provides abundant value-added service.
Claims (10)
1. a dynamic domain name update method, is characterized in that, comprising:
Long-distance user dials in radius client in authentication service RADIUS access switch reception BAS Broadband Access Server BRAS and sends to the charging message of radius server, and this charging message is mirrored to trigger server, described charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information;
Trigger server analyser is as the type information that rolls off the production line in charging message, and type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line;
When the upper type that rolls off the production line is for reaching the standard grade, described trigger server instruction domain name server (DNS) carries out domain name binding to described IP address and domain name;
When the upper type that rolls off the production line is for rolling off the production line, the domain name that described trigger server instruction DNS cancels described IP address and domain name is bound.
2. method according to claim 1, it is characterized in that, before RADIUS access switch reception radius client sends to the charging message of radius server, also comprise: BRAS receives the access request that described user terminal sends, and described access request comprises the IP address information of described user terminal, the user account number of described user terminal user and password; Described BRAS carries out certification to described user account number and password, and after described user account number and password pass through certification, generate accounting start request and send to described radius server, described accounting start request comprises the IP address information of user terminal, described user account number and information of reaching the standard grade, described charging message is specially described accounting start request, domain name is specially described user account number, and the type that rolls off the production line on described is specially reaches the standard grade;
Described RADIUS access switch receives radius client and sends to the charging message of radius server to be specially: RADIUS access switch receives the accounting start request that described BRAS sends to described radius server.
3. method according to claim 2, is characterized in that, also comprises:
Described user terminal sends access request by Ethernet transmission point-to-point protocol PPPoE dial business to described BRAS.
4. method according to claim 1, it is characterized in that, before RADIUS access switch reception radius client sends to the charging message of radius server, also comprise: described BRAS receive described subscriber terminal equipment send rolling off the production line request, described in roll off the production line ask comprise the IP address information of described user terminal and the user account number of described user terminal user; Described BRAS generates charging ending request and sends to described radius server, described charging ending request comprises the IP address information of user terminal and described user account number and offline information, described charging message is specially described charging ending request, domain name is specially described user account number, and the type that rolls off the production line on described is specially and rolls off the production line;
Described RADIUS access switch receives radius client and sends to the charging message of radius server to be specially: described RADIUS access switch receives the charging ending request that described BRAS sends to described radius server.
5. the method according to Claims 1-4 any one, is characterized in that, described DNS carries out domain name to described IP address and domain name and binds and comprise: described DNS sets up the corresponding relation between described IP address and domain name and stores;
The domain name that described DNS cancels described IP address and domain name is bound and is comprised: described DNS deletes the corresponding relation between described IP address and domain name.
6. method according to claim 5, is characterized in that, also comprises:
Described DNS receives the DNS request that third party device sends, and described DNS request comprises domain-name information;
Described DNS from the IP address stored with obtain IP address that in described DNS request, domain name is corresponding the corresponding relation between domain name and return described third party device.
7. a dynamic domain name update system, is characterized in that, comprise RADIUS access switch and dynamic domain name service DDNS system, described DDNS system comprises trigger server and DNS;
Described RADIUS access switch, the charging message of radius server is sent to for receiving radius client in BRAS, and this charging message is mirrored to described trigger server, described charging message comprise the IP address information of user terminal, domain name and on to roll off the production line type information;
Described trigger server, for analyser as the type information that rolls off the production line in charging message, type that identification is rolled off the production line is for reaching the standard grade or rolling off the production line; When the upper type that rolls off the production line is for reaching the standard grade, described DNS is indicated to carry out domain name binding to described IP address and domain name; When the upper type that rolls off the production line is for rolling off the production line, the domain name indicating described DNS to cancel described IP address and domain name is bound;
Described DNS, binds for the domain name of carrying out domain name binding according to the instruction of described trigger server to described IP address and domain name or cancelling described IP address and domain name.
8. system according to claim 7, is characterized in that, described BRAS, and for receiving the access request that user terminal sends, described access request comprises the IP address information of described user terminal, the user account number of described user terminal user and password; And certification is carried out to described user account number and password, and after described user account number and password pass through certification, generate accounting start request and send to described radius server, described accounting start request comprises the IP address information of user terminal, described user account number and information of reaching the standard grade, described charging message is specially described accounting start request, domain name is specially described user account number, and the type that rolls off the production line on described is specially reaches the standard grade;
Described RADIUS access switch sends to the accounting start request of described radius server specifically for receiving described BRAS, and this accounting start request is mirrored to trigger server.
9. system according to claim 7, is characterized in that, described BRAS, for receive described user terminal send rolling off the production line request, described in roll off the production line ask comprise the IP address information of described user terminal and the user account number of described user terminal user; And generate charging ending request and send to described radius server, described charging ending request comprises the IP address information of user terminal and described user account number and offline information, described charging message is specially described charging ending request, domain name is specially described user account number, and the type that rolls off the production line on described is specially and rolls off the production line;
Described RADIUS access switch sends to the charging ending request of described radius server specifically for receiving described BRAS, and this accounting start request is mirrored to trigger server.
10. the system according to claim 7 to 9 any one, it is characterized in that, described DNS is also for receiving the DNS request that third party device sends, described DNS request comprises domain-name information, from the IP address stored with obtain IP address that in described DNS request, domain name is corresponding the corresponding relation between domain name and return described third party device.
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| GB2518755B (en) * | 2013-05-23 | 2021-04-28 | Pismo Labs Technology Ltd | Methods and systems for dynamic domain name system (DDNS) |
| CN106992906B (en) * | 2016-01-21 | 2019-07-02 | 中国联合网络通信集团有限公司 | A kind of method of adjustment and system of access rate |
| CN110769462B (en) * | 2019-10-24 | 2023-03-28 | 杭州迪普科技股份有限公司 | Network access control method and device |
| CN115514662A (en) * | 2021-06-22 | 2022-12-23 | 中国移动通信集团河南有限公司 | Service level agreement SLA measuring system and measuring method |
| CN114338382B (en) * | 2021-12-30 | 2023-11-14 | 北京天融信网络安全技术有限公司 | Domain name based equipment online method and device, computer equipment and storage medium |
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| CN101442566A (en) * | 2009-01-08 | 2009-05-27 | 中国电信股份有限公司 | Method and apparatus for implementing dynamic domain name update |
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