WO2018010353A1 - Dns网络系统、域名解析方法及系统 - Google Patents

Dns网络系统、域名解析方法及系统 Download PDF

Info

Publication number
WO2018010353A1
WO2018010353A1 PCT/CN2016/106049 CN2016106049W WO2018010353A1 WO 2018010353 A1 WO2018010353 A1 WO 2018010353A1 CN 2016106049 W CN2016106049 W CN 2016106049W WO 2018010353 A1 WO2018010353 A1 WO 2018010353A1
Authority
WO
WIPO (PCT)
Prior art keywords
domain name
server
dns server
name resolution
record
Prior art date
Application number
PCT/CN2016/106049
Other languages
English (en)
French (fr)
Inventor
吴小英
王剑雄
郑惟基
吴振永
Original Assignee
网宿科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 网宿科技股份有限公司 filed Critical 网宿科技股份有限公司
Priority to EP16908676.6A priority Critical patent/EP3389243B1/en
Priority to US15/743,472 priority patent/US20200084177A1/en
Publication of WO2018010353A1 publication Critical patent/WO2018010353A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4552—Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
    • 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
    • H04L61/58—Caching of addresses or names
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1021—Server selection for load balancing based on client or server locations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching

Definitions

  • the present invention relates to the field of network communications, and in particular, to a DNS network system, a domain name resolution method and system, a database system, and a server.
  • the current DNS server network generally adopts a global configuration. Each public network DNS server randomly selects an authoritative DNS server when sending a resolution request. Therefore, it is largely impossible to select the optimal authoritative DNS server for the request. It directly leads to a longer request. For example, if 10 authoritative DNS servers are used globally, each country's public network recursive DNS server randomly selects one to access, and there is a greater probability that the optimal authoritative DNS server cannot be selected.
  • the present invention aims to provide a DNS network system, a domain name resolution method and system, a database system, and a server, which are used to solve the problem of domain name resolution in the prior art because the resolution server does not have a good partition. Low problem.
  • the present invention provides a DNS network system, including: a local DNS server of at least one network operator, configured to receive a domain name resolution request from a client of at least one network operator, and Sending the domain name resolution request from the root server to the lower layer authoritative DNS server for recursive query; the upper authority DNS server storing the NS record of at least one external authorization server for receiving the domain name sent by the local DNS server When parsing the request, according to the top-level domain name information in the domain name resolution request, providing the local DNS server with a corresponding NS record for accessing the corresponding external authorization server; the external authorization server storing at least one IP address, and At least one carrier geographic information associated with the at least one IP address in a one-to-one correspondence, wherein the at least one carrier geographic information is further associated with an A record of a corresponding lower authoritative DNS server, where the external authorization server is used When receiving a domain name resolution request from the local DNS server, you will be asked The IP address of the local DNS server is matched with the
  • the local DNS server is provided with a corresponding NS record according to the top-level domain name information in the domain name resolution request, for accessing the corresponding external authorization server according to the A record in the NS record, including
  • the external authorization server provided by the upper-level authoritative DNS server to the local DNS server is different from the top-level domain name in the domain name resolution request.
  • the NS record and/or the corresponding A record are modified accordingly.
  • the present invention provides a server, where the server stores an NS record of at least one external device, and is configured to: according to the domain name resolution request, the top-level domain name in the domain name resolution request Information, providing the corresponding NS record.
  • the NS record is provided according to the top-level domain name information in the domain name resolution request, and includes: an external device corresponding to the provided NS record, and the top-level domain name and the domain name used for parsing The top-level domain in the resolution request is different.
  • the present invention provides a database system, including: at least one IP address, and at least one carrier geographic information associated with the at least one IP address in a one-to-one correspondence, wherein the at least one piece
  • the operator geographic information is also associated with the A record of the corresponding authoritative DNS server.
  • the present invention provides a server, comprising: the database system as described above, the server is configured to: when receiving a domain name resolution request sent by an external device, accessing the IP of the external device Matching with the at least one IP address, thereby finding corresponding operator geographic information, and providing the A record of the authoritative DNS server associated with the operator geographic information to the external device.
  • the present invention provides a domain name resolution method, which is applied to a DNS network system according to any one of the above, the method comprising: receiving, by at least one network operator, a local DNS server from at least one a domain name resolution request of the network operator's client, and sending the domain name resolution request from the root server to the lower layer authoritative DNS server for recursive query; wherein the local DNS server sends a domain name resolution request to the root server, and receives the The NS record of the upper authority DNS server returned by the root server; the local DNS server sends the domain name resolution request to the upper authority DNS server, and receives the NS record of the external authorization server returned by the upper authority DNS server; the local DNS The server sends the domain name resolution request to the external authorization server, and receives the A record of the lower authority DNS server returned by the external authorization server, where the IP address corresponding to the operator geographic information associated with the A record and the local DNS The server's egress IP matches; the local DNS service The device sends the domain name resolution
  • the domain name resolution method further includes: an external authorization server returned by the upper-layer authoritative DNS server to the local DNS server, where the top-level domain name used for parsing is different from the top-level domain name in the domain name resolution request.
  • the present invention provides a domain name resolution system, including: a first transceiver module, configured to enable a local DNS server of at least one network operator to receive a client from at least one network operator.
  • the second transceiver module is configured to enable the local DNS server to send a domain name resolution request to the root server, and receive an NS record of the upper-layer authoritative DNS server returned by the root server; and the third transceiver module is configured to:
  • the DNS server sends the domain name resolution request to the upper-layer authoritative DNS server, and receives the NS record of the external authorization server returned by the upper-layer authoritative DNS server.
  • the fourth transceiver module is configured to send the local DNS server to the external authorization server.
  • the domain name resolution request and receiving the A record of the lower-layer authoritative DNS server returned by the external authorization server, where the IP address corresponding to the operator geographic information associated with the A record matches the egress IP of the local DNS server; a fifth transceiver module, configured to: the local DNS server to the lower authority DNS The server sends the domain name resolution request and receives the domain name resolution result returned by the lower authority DNS server.
  • the DNS network system, the domain name resolution method and system, the database system, and the server of the present invention can implement the server request from the operator to the carrier, the server request from the server in the area to the local area, to reduce cross-operation.
  • the failure rate of quotient and cross-regional resolution can quickly find the ultimate authoritative DNS server and improve the DNS resolution time.
  • the scope of the impact is only this partition, and will not affect the overall situation.
  • the present application partitions the final authoritative DNS server through the A record, and by modifying the A record, a fast scheduling effect can be achieved.
  • FIG. 1 is a schematic structural diagram of a DNS network system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a domain name parsing method according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of a domain name resolution system according to an embodiment of the present invention.
  • the present invention provides a DNS network system, including:
  • At least one network operator's local DNS server for example, a telecommunications public network DNS server, a Unicom public network DNS server, etc., for correspondingly receiving a domain name resolution request from a client of at least one network operator, and
  • the root server sends the domain name resolution request to the lower layer authoritative DNS server to perform recursive query.
  • the client A is the client of the network operator A
  • the domain name resolution request aaa.com is received by the public network DNS server of the network operator A.
  • the client B is the network operator B.
  • the customer, whose domain name resolution request aaa.com is received by network operator B's public network DNS server.
  • an upper-layer authoritative DNS server which stores an NS record of at least one external authorization server, for when the domain name resolution request sent by the local DNS server is received, 3 according to the top-level domain name information in the domain name resolution request,
  • the local DNS server is provided with a corresponding NS record for accessing the corresponding external authorization server based on the A record in the NS record. That is to say, in the present application, the upper-level authoritative DNS server that should originally resolve the top-level domain name is no longer directly parsing the work, but is authorized to the designated external authorization server. It should be noted that the designated external authorization server is used.
  • the resolved top-level domain name is different from the top-level domain name in the domain name resolution request, so that the local DNS server may be prevented from accessing the upper-layer DNS authoritative server again.
  • the upper-level authoritative DNS server is a COM server that resolves the top-level domain name .com.
  • the external authorization server cannot be a COM server. It can be a CN server that resolves the top-level domain name .cn, or Parse the top-level domain .net NET server and so on. If the external authorization server is a COM server, then the domain name resolution request will be returned to the upper authority DNS server, so that the external authorization server cannot be used and the next operation is performed.
  • the external authorization server stores at least one IP address and at least one operator geographic information associated with the at least one IP address in a one-to-one correspondence, wherein the at least one operator geographic information is further associated with a corresponding A record of the underlying authoritative DNS server.
  • the external authorization server stores Table 1 and Table 2.
  • Table 1 includes IP address ranges from “IP start” to "IP end”, each range corresponding to corresponding operator geographic information, from the table It can be seen that the operator's geographic information corresponding to the IP address range between "1.1.1.1 and 1.1.1.255" is "dx_Fujian", which means "Fujian Telecom".
  • the A record of the lower authoritative DNS server is "202.101.98.55". It should be noted that when adding or deleting an external authorization server, the NS record of Table 2 can be added or deleted accordingly, and the corresponding operator geographic information and the A record of the underlying authoritative DNS server will also be added or deleted together. .
  • the external authorization server is configured to: when receiving the domain name resolution request sent by the local DNS server, 5 match the request IP, that is, the egress IP of the local DNS server with the at least one IP address, thereby finding the corresponding operation.
  • the geographic information is provided, and the A record of the underlying authoritative DNS server associated with the operator's geographic information is provided to the local DNS server for access. It can be seen that when it is necessary to add or delete the at least one lower-level authoritative DNS server, it is only necessary to modify the A record stored in the corresponding external authorization server accordingly.
  • the lower-layer authoritative DNS server is configured to: when receiving the domain name resolution request sent by the local DNS server, 7 parse the domain name resolution request, and provide the domain name resolution result to the domain name resolution request.
  • the upper-layer authoritative DNS server of the present application is authorized by the root server according to the top-level domain name of the domain name resolution request.
  • the upper-layer authoritative DNS may also be used.
  • the next-level authoritative DNS server of the server that is, the authoritative DNS server for parsing the next-level domain name, authorizes the external authorization server, etc., but it is inferior in terms of the technical effect obtained.
  • the present invention provides a server, where the server stores an NS record of at least one external device, and when receiving the domain name resolution request, according to the top-level domain name information in the domain name resolution request, Provide the corresponding NS record. Since the technical features in the foregoing embodiments can also be applied to the present embodiment, the description thereof will not be repeated. It should be noted that, according to the top-level domain name information in the domain name resolution request, the corresponding NS record is provided, including: an external device corresponding to the provided NS record, and the top-level domain name used for the parsing and the domain name resolution request Top-level domains are different.
  • the present invention provides a database system, including: at least one IP address, and at least one carrier geographic information associated with the at least one IP address in a one-to-one correspondence, wherein the at least one piece
  • the operator geographic information is also associated with the A record of the corresponding authoritative DNS server.
  • Tables 1 and 2 the contents of Tables 1 and 2 above.
  • the present invention provides a server, including the database system as described above, when the server is configured to receive the IP address of the external device when receiving the domain name resolution request sent by the external device.
  • the at least one IP address is matched to find the corresponding operator geographic information, and the A record of the authoritative DNS server associated with the operator geographic information is provided to the external device. Since the technical features in the foregoing embodiments can also be applied to the present embodiment, the description thereof will not be repeated.
  • the present invention provides a domain name resolution method, which is applied to the DNS network system as described above, and the technical features in the foregoing embodiments can also be applied to the embodiment. Therefore, the description will not be repeated, and the following will be specifically explained with examples:
  • 1 at least one network operator's local DNS server corresponding to receiving a domain name resolution request from a client of at least one network operator, such as: querying the A record of "www.wsdns.com";
  • the domain name resolution request is sent by the local DNS server to the root server;
  • the root server returns an NS record of the upper authority DNS server (for example, a COM server) to the local DNS server;
  • the upper authority DNS server for example, a COM server
  • the local DNS server sends the domain name resolution request to the upper authority DNS server;
  • the upper-level authoritative DNS server informs the local DNS server to authorize the info server; it should be noted that, just as bbb.com obtains authorization to register with com at the time of domain name registration, the external authorization server of the present application is registered with info at the time of establishment. Obtaining an authorization, which is then assigned to the external authorization server by the NS record of info;
  • the local DNS server queries the root server for the NS record of the info server
  • the root server sends the NS record of the info server to the local DNS server;
  • the local DNS server sends the domain name resolution request to the info server
  • the info server sends an NS record of the external authorization server to the local DNS server, where the top-level domain name used by the external authorization server is different from the top-level domain name in the domain name resolution request;
  • the local DNS server sends the domain name resolution request to the external authorization server
  • the external authorization server sends an A record of the underlying authoritative DNS server to the local DNS server, where the IP address corresponding to the operator geographic information associated with the A record matches the egress IP of the local DNS server;
  • the local DNS server sends the domain name resolution request to the lower authoritative DNS server;
  • the lower-layer authoritative DNS server sends the domain name resolution result to the local DNS server.
  • the local DNS server returns the domain name resolution result to the client for access.
  • the present invention provides a domain name resolution system. 300, as a software system installed on a hardware device, such as a local DNS server, comprising: a first transceiver module 301, a second transceiver module 302, a third transceiver module 303, a fourth transceiver module 304, and a fifth transceiver module 305. Since the technical features in the method embodiments can also be applied to the system embodiment, the description is not repeated.
  • the first transceiver module 301 receives the domain name resolution request from the client of the network operator; the second transceiver module 302 sends a domain name resolution request to the root server, and receives the NS record of the upper authority DNS server returned by the root server; the third transceiver module The 303 sends the domain name resolution request to the upper-layer authoritative DNS server, and receives the NS record of the external authorization server returned by the upper-layer authoritative DNS server; the fourth transceiver module 304 sends the domain name resolution request to the external authorization server, and receives the The A record of the lower-layer authoritative DNS server returned by the external authorization server, wherein the IP address corresponding to the operator geographic information associated with the A record matches the egress IP of the local DNS server; the fifth transceiver module 305 is to the lower layer The authoritative DNS server sends the domain name resolution request and receives the domain name resolution result returned by the lower authority DNS server.
  • the DNS network system and the domain name resolution method and system of the present invention distribute the domain name resolution request sent by the client of each network operator to the designated authoritative server for analysis by external authorization, thereby improving the analysis efficiency and effectively overcoming It has various disadvantages in the prior art and has high industrial utilization value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本发明提供DNS网络系统、域名解析方法及系统，本地DNS服务器接收同网络运营商的客户端的域名解析请求并向根服务器发送；根据根服务器返回的上层权威DNS服务器的NS记录，向该上层权威DNS服务器发送域名解析请求；根据该上层权威DNS服务器返回的外部授权服务器的NS记录，向该外部授权服务器发送域名解析请求；根据该外部授权服务器返回的下层权威DNS服务器的A记录，该A记录关联的运营商地理信息所对应的IP与该本地DNS服务器的出口IP相匹配，向该下层权威DNS服务器发送域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。通过外部授权、将最终解析的服务器按运营商地理信息划分，提高解析效率。

Description

DNS网络系统、域名解析方法及系统 技术领域
本发明涉及网络通信领域，特别是涉及DNS网络系统、域名解析方法及系统、数据库系统、服务器。
背景技术
当前的DNS服务器网络一般采用全局配置，各公网DNS服务器在发送解析请求时会随机选择一台权威DNS服务器，如此看来，很大程度上不能选择到最优的权威DNS服务器进行请求，也就直接导致了请求的时间较长。例如，如果全球都使用10台权威DNS服务器，每个国家的公网递归DNS服务器随机选择一台进行访问，有较大的概率选择不到最优的权威DNS服务器。
除此之外，很多域名注册商也都没有分区的概念，也无法在域名注册商上层的权威DNS服务器直接进行分区授权。可见，目前的DNS网络架构在处理解析方面还需要进一步优化，以提高解析效率。
发明内容
鉴于以上所述现有技术的缺点，本发明的目的在于提供DNS网络系统、域名解析方法及系统、数据库系统、服务器，用于解决现有技术中因解析服务器没有良好的分区而导致域名解析效率低下的问题。
为实现上述目的及其他相关目的，本发明提供一种DNS网络系统，包括：至少一种网络运营商的本地DNS服务器，用于对应接收来自至少一种网络运营商的客户端的域名解析请求，并从根服务器逐层向下层权威DNS服务器发送所述域名解析请求以进行递归查询；上层权威DNS服务器，存储有至少一种外部授权服务器的NS记录，用于在收到本地DNS服务器发来的域名解析请求时，根据所述域名解析请求中的顶级域名信息，向该本地DNS服务器提供相应的NS记录，供其访问相应的外部授权服务器；所述外部授权服务器，存储有至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的下层权威DNS服务器的A记录，所述外部授权服务器用于在收到本地DNS服务器发来的域名解析请求时，将请求IP即该本地DNS服务器的出口IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的下层权威DNS服务器的A记录提供给该本地DNS服务 器，供其访问；所述下层权威DNS服务器，用于在收到本地DNS服务器发来的域名解析请求时，解析所述域名解析请求，向其提供域名解析结果。
于本发明一实施例中，所述根据所述域名解析请求中的顶级域名信息，向该本地DNS服务器提供相应的NS记录，供其根据NS记录中的A记录访问相应的外部授权服务器，包括：所述上层权威DNS服务器向本地DNS服务器提供的外部授权服务器，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
于本发明一实施例中，当新增或删减外部授权服务器、和/或下层权威DNS服务器时，相应地修改NS记录、和/或对应的A记录。
为实现上述目的及其他相关目的，本发明提供一种服务器，所述服务器存储有至少一种外部设备的NS记录，用于在收到域名解析请求时，根据所述域名解析请求中的顶级域名信息，提供相应的NS记录。
于本发明一实施例中，所述根据所述域名解析请求中的顶级域名信息，提供相应的NS记录，包括：提供的NS记录对应的外部设备，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
为实现上述目的及其他相关目的，本发明提供一种数据库系统，包括：至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的权威DNS服务器的A记录。
为实现上述目的及其他相关目的，本发明提供一种服务器，包括：如上所述的数据库系统，所述服务器用于在收到外部设备发来的域名解析请求时，将该外部设备的来访IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的权威DNS服务器的A记录提供给该外部设备。
为实现上述目的及其他相关目的，本发明提供一种域名解析方法，应用于如上任一所述的DNS网络系统，所述方法包括：至少一种网络运营商的本地DNS服务器对应接收来自至少一种网络运营商的客户端的域名解析请求，并从根服务器逐层向下层权威DNS服务器发送所述域名解析请求以进行递归查询；其中，该本地DNS服务器向根服务器发送域名解析请求，并接收由该根服务器返回的上层权威DNS服务器的NS记录；该本地DNS服务器向该上层权威DNS服务器发送所述域名解析请求，并接收由该上层权威DNS服务器返回的外部授权服务器的NS记录；该本地DNS服务器向该外部授权服务器发送所述域名解析请求，并接收由该外部授权服务器返回的下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；该本地DNS服务 器向该下层权威DNS服务器发送所述域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。
于本发明一实施例中，所述域名解析方法还包括：上层权威DNS服务器向本地DNS服务器返回的外部授权服务器，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
为实现上述目的及其他相关目的，本发明提供一种域名解析系统，包括：第一收发模块，用于令至少一种网络运营商的本地DNS服务器对应接收来自至少一种网络运营商的客户端的域名解析请求；第二收发模块，用于令该本地DNS服务器向根服务器发送域名解析请求，并接收由该根服务器返回的上层权威DNS服务器的NS记录；第三收发模块，用于令该本地DNS服务器向该上层权威DNS服务器发送所述域名解析请求，并接收由该上层权威DNS服务器返回的外部授权服务器的NS记录；第四收发模块，用于令该本地DNS服务器向该外部授权服务器发送所述域名解析请求，并接收由该外部授权服务器返回的下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；第五收发模块，用于令该本地DNS服务器向该下层权威DNS服务器发送所述域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。
如上所述，本发明的DNS网络系统、域名解析方法及系统、数据库系统、服务器，可以实现本运营商到本运营商的服务器请求、本区域的服务器到本区域的服务器请求，以减少跨运营商、跨区域解析的失败率，从而快速找到最终的权威DNS服务器，提高DNS解析时间。除此之外，如果该最终的权威DNS服务器遭受到了攻击，影响范围只有这个分区，不会影响到全局。还有，本申请是通过A记录对最终的权威DNS服务器进行分区，通过修改A记录，就能达到快速的调度效果。
附图说明
图1显示为本发明一实施例的DNS网络系统结构示意图。
图2显示为本发明一实施例的域名解析方法流程图。
图3显示为本发明一实施例的域名解析系统模块图。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精 神下进行各种修饰或改变。需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。
需要说明的是，以下实施例中所提供的图示仅以示意方式说明本发明的基本构想，遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。
请参阅图1，本发明提供一种DNS网络系统，包括：
(1)至少一种网络运营商的本地DNS服务器，例如，电信公网DNS服务器、联通公网DNS服务器等，用于①对应接收来自至少一种网络运营商的客户端的域名解析请求，并从根服务器逐层向下层权威DNS服务器发送所述域名解析请求以进行递归查询。例如：客户端A是网络运营商A的客户，其发出的域名解析请求aaa.com由网络运营商A的公网DNS服务器接收，又例如(未图示)：客户端B是网络运营商B的客户，其发出的域名解析请求aaa.com由网络运营商B的公网DNS服务器接收。
(2)上层权威DNS服务器，存储有至少一种外部授权服务器的NS记录，用于②在收到本地DNS服务器发来的域名解析请求时，③根据所述域名解析请求中的顶级域名信息，向该本地DNS服务器提供相应的NS记录，供其根据NS记录中的A记录访问相应的外部授权服务器。也就是说，在本申请中，原本应当解析顶级域名的上层权威DNS服务器不再直接进行解析的工作，而是授权给指定的外部授权服务器，需要说明的是，该指定的外部授权服务器用来解析的顶级域名与所述域名解析请求中的顶级域名不同，从而避免本地DNS服务器可能会再次访问到上层DNS权威服务器。例如：上层权威DNS服务器是一种解析顶级域名为.com的COM服务器，那么，外部授权服务器就不能是一种COM服务器，其可以是一种解析顶级域名.cn的CN服务器，或者，一种解析顶级域名.net的NET服务器等。如果这里外部授权服务器是一种COM服务器，那么，域名解析请求将又会返回到上层权威DNS服务器，从而不能经所述外部授权服务器并进行接下来的操作。
(3)外部授权服务器，存储有至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的下层权威DNS服务器的A记录。举个例子，所述外部授权服务器中存储有表1和表2，表1包含从“IP开始”至“IP结束”的IP地址范围，每个范围对应有相应的运营商地理信息，从表1中可见，IP地址范围在“1.1.1.1～1.1.1.255”之间的IP地址所对应的运营商地理信息为“dx_Fujian”，表示“福建省电信”，搜索到该“dx_Fujian”后又可以在表2中找到关联的 下层权威DNS服务器的A记录“202.101.98.55”。需要说明的是，当新增或删减外部授权服务器时，相应地增加或删除表2的NS记录即可，相对应的运营商地理信息、下层权威DNS服务器的A记录也将一同增加或删除。
表1
Figure PCTCN2016106049-appb-000001
表2
NS 运营商地理信息 下层权威DNS服务器的A记录
dns1.aaa.com dx_Fujian 202.101.98.55
…… …… ……
④所述外部授权服务器用于在收到本地DNS服务器发来的域名解析请求时，⑤将请求IP即该本地DNS服务器的出口IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的下层权威DNS服务器的A记录提供给该本地DNS服务器，供其访问。可见，当需要新增或删减所述至少一种下层权威DNS服务器时，只需相应修改对应的外部授权服务器中存储的A记录即可。
(4)下层权威DNS服务器，用于⑥在收到本地DNS服务器发来的域名解析请求时，⑦解析所述域名解析请求，向其提供域名解析结果。
需要说明的是，本申请的上层权威DNS服务器是根服务器根据域名解析请求的顶级域名进行授权的，当然，除了在上层权威DNS服务器处对外部授权服务器进行授权之外，还可以在上层权威DNS服务器的下一级权威DNS服务器，即用于解析下一级域名的权威DNS服务器处对外部授权服务器进行授权等，只不过从取得的技术效果上来看，会逊色许多。
与上述实施例原理相似的是，本发明提供一种服务器，所述服务器存储有至少一种外部设备的NS记录，在收到域名解析请求时，根据所述域名解析请求中的顶级域名信息，提供相应的NS记录。由于前述实施例中的技术特征也能应用与本实施例，因而不再重复赘述。需要说明的是，所述根据所述域名解析请求中的顶级域名信息提供相应的NS记录，包括：提供的NS记录对应的外部设备，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
与上述实施例原理相似的是，本发明提供一种数据库系统，包括：至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的权威DNS服务器的A记录。例如，上述表1、2的内容。由 于前述实施例中的技术特征也能应用与本实施例，因而不再重复赘述。
与上述实施例原理相似的是，本发明提供一种服务器，包括如上所述的数据库系统，所述服务器用于在收到外部设备发来的域名解析请求时，将该外部设备的来访IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的权威DNS服务器的A记录提供给该外部设备。由于前述实施例中的技术特征也能应用与本实施例，因而不再重复赘述。
请参阅图2，与上述实施例原理相似的是，本发明提供一种域名解析方法，应用于如上任一所述的DNS网络系统，由于前述实施例中的技术特征也能应用与本实施例，因而不再重复赘述，以下将结合例子做具体说明：
①至少一种网络运营商的本地DNS服务器对应接收来自至少一种网络运营商的客户端的域名解析请求，如：询问“www.wsdns.com”的A记录；
②该域名解析请求被本地DNS服务器发送至根服务器；
③该根服务器向该本地DNS服务器返回上层权威DNS服务器(如：COM服务器)的NS记录；
④该本地DNS服务器向该上层权威DNS服务器发送所述域名解析请求；
⑤该上层权威DNS服务器告知该本地DNS服务器授权给了info服务器；需要说明的是，正如bbb.com在域名注册时向com注册取得授权类似，本申请的外部授权服务器在设立时是向info注册取得授权，随后由info的NS记录指定到所述外部授权服务器；
⑥该本地DNS服务器向该根服务器询问info服务器的NS记录；
⑦该根服务器向该本地DNS服务器发送该info服务器的NS记录；
⑧该本地DNS服务器向该info服务器发送所述域名解析请求；
⑨该info服务器向该本地DNS服务器发送外部授权服务器的NS记录，该外部授权服务器用于解析的顶级域名与所述域名解析请求中的顶级域名不同；
⑩该本地DNS服务器向该外部授权服务器发送所述域名解析请求；
Figure PCTCN2016106049-appb-000002
该外部授权服务器向该本地DNS服务器发送下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；
Figure PCTCN2016106049-appb-000003
该本地DNS服务器向该下层权威DNS服务器发送所述域名解析请求；
Figure PCTCN2016106049-appb-000004
该下层权威DNS服务器向该本地DNS服务器发送域名解析结果；
Figure PCTCN2016106049-appb-000005
该本地DNS服务器向该客户端返回域名解析结果，供其访问。
请参阅图3，与上述域名解析方法实施例原理相似的是，本发明提供一种域名解析系统 300，作为一套搭载在硬件设备，如：本地DNS服务器上的软件系统，包括：第一收发模块301、第二收发模块302、第三收发模块303、第四收发模块304、第五收发模块305。由于方法实施例中的技术特征也可以应用于本系统实施例，因而不再重复赘述。
第一收发模块301接收同网络运营商的客户端的域名解析请求；第二收发模块302向根服务器发送域名解析请求，并接收由该根服务器返回的上层权威DNS服务器的NS记录；第三收发模块303向该上层权威DNS服务器发送所述域名解析请求，并接收由该上层权威DNS服务器返回的外部授权服务器的NS记录；第四收发模块304向该外部授权服务器发送所述域名解析请求，并接收由该外部授权服务器返回的下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；第五收发模305向该下层权威DNS服务器发送所述域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。
综上所述，本发明的DNS网络系统、域名解析方法及系统，通过外部授权，将各网络运营商的客户端发出的域名解析请求分给指定的权威服务器进行解析，提高解析效率，有效克服了现有技术中的种种缺点而具高度产业利用价值。
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (10)

  1. 一种DNS网络系统，其特征在于，包括：
    至少一种网络运营商的本地DNS服务器，用于对应接收来自至少一种网络运营商的客户端的域名解析请求，并从根服务器逐层向下层权威DNS服务器发送所述域名解析请求以进行递归查询；
    上层权威DNS服务器，存储有至少一种外部授权服务器的NS记录，用于在收到本地DNS服务器发来的域名解析请求时，根据所述域名解析请求中的顶级域名信息，向该本地DNS服务器提供相应的NS记录，供其访问相应的外部授权服务器；
    所述外部授权服务器，存储有至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的下层权威DNS服务器的A记录，所述外部授权服务器用于在收到本地DNS服务器发来的域名解析请求时，将该本地DNS服务器的出口IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的下层权威DNS服务器的A记录提供给该本地DNS服务器，供其访问；
    所述下层权威DNS服务器，用于在收到本地DNS服务器发来的域名解析请求时，解析所述域名解析请求，向其提供域名解析结果。
  2. 根据权利要求1所述的DNS网络系统，其特征在于，所述根据所述域名解析请求中的顶级域名信息，向该本地DNS服务器提供相应的NS记录，供其访问相应的外部授权服务器，包括：所述上层权威DNS服务器向本地DNS服务器提供的外部授权服务器，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
  3. 根据权利要求1所述的DNS网络系统，其特征在于，当新增或删减外部授权服务器、和/或下层权威DNS服务器时，相应地修改NS记录、和/或对应的A记录。
  4. 一种服务器，其特征在于，所述服务器存储有至少一种外部设备的NS记录，用于在收到域名解析请求时，根据所述域名解析请求中的顶级域名信息，提供相应的NS记录。
  5. 根据权利要求4所述的服务器，其特征在于，所述根据所述域名解析请求中的顶级域名信息，提供相应的NS记录，包括：提供的NS记录对应的外部设备，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
  6. 一种数据库系统，其特征在于，包括：至少一条IP地址、及与所述至少一条IP地址一一对应关联的至少一条运营商地理信息，其中，所述至少一条运营商地理信息还分别关联有对应的权威DNS服务器的A记录。
  7. 一种服务器，其特征在于，包括：如权利要求6所述的数据库系统，所述服务器用于在收到外部设备发来的域名解析请求时，将该外部设备的来访IP与所述至少一条IP地址进行匹配，从而查找到相应的运营商地理信息，并将该运营商地理信息关联的权威DNS服务器的A记录提供给该外部设备。
  8. 一种域名解析方法，其特征在于，应用于如权利要求1至3中任一所述的DNS网络系统，所述方法包括：
    至少一种网络运营商的本地DNS服务器对应接收来自至少一种网络运营商的客户端的域名解析请求，并从根服务器逐层向下层权威DNS服务器发送所述域名解析请求以进行递归查询；其中，
    该本地DNS服务器向根服务器发送域名解析请求，并接收由该根服务器返回的上层权威DNS服务器的NS记录；
    该本地DNS服务器向该上层权威DNS服务器发送所述域名解析请求，并接收由该上层权威DNS服务器返回的外部授权服务器的NS记录；
    该本地DNS服务器向该外部授权服务器发送所述域名解析请求，并接收由该外部授权服务器返回的下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；
    该本地DNS服务器向该下层权威DNS服务器发送所述域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。
  9. 根据权利要求8所述的域名解析方法，其特征在于，还包括：上层权威DNS服务器向本地DNS服务器返回的外部授权服务器，其用于解析的顶级域名与所述域名解析请求中的顶级域名不同。
  10. 一种域名解析系统，其特征在于，包括：
    第一收发模块，用于令至少一种网络运营商的本地DNS服务器对应接收来自至少一种网络运营商的客户端的域名解析请求；
    第二收发模块，用于令该本地DNS服务器向根服务器发送域名解析请求，并接收由该根服务器返回的上层权威DNS服务器的NS记录；
    第三收发模块，用于令该本地DNS服务器向该上层权威DNS服务器发送所述域名解析请求，并接收由该上层权威DNS服务器返回的外部授权服务器的NS记录；
    第四收发模块，用于令该本地DNS服务器向该外部授权服务器发送所述域名解析请求，并接收由该外部授权服务器返回的下层权威DNS服务器的A记录，其中，该A记录关联的运营商地理信息所对应的IP地址与该本地DNS服务器的出口IP相匹配；
    第五收发模块，用于令该本地DNS服务器向该下层权威DNS服务器发送所述域名解析请求，并接收由该下层权威DNS服务器返回的域名解析结果。
PCT/CN2016/106049 2016-07-14 2016-11-16 Dns网络系统、域名解析方法及系统 WO2018010353A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16908676.6A EP3389243B1 (en) 2016-07-14 2016-11-16 Dns network system, and domain name resolution method and system
US15/743,472 US20200084177A1 (en) 2016-07-14 2016-11-16 Dns network system, domain-name parsing method and system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610552767.4A CN107623751B (zh) 2016-07-14 2016-07-14 Dns网络系统、域名解析方法及系统
CN201610552767.4 2016-07-14

Publications (1)

Publication Number Publication Date
WO2018010353A1 true WO2018010353A1 (zh) 2018-01-18

Family

ID=60952733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/106049 WO2018010353A1 (zh) 2016-07-14 2016-11-16 Dns网络系统、域名解析方法及系统

Country Status (4)

Country Link
US (1) US20200084177A1 (zh)
EP (1) EP3389243B1 (zh)
CN (1) CN107623751B (zh)
WO (1) WO2018010353A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111756739A (zh) * 2020-06-24 2020-10-09 中国银行股份有限公司 一种域名解析方法及相关设备

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109495325B (zh) * 2018-12-26 2020-07-24 睿哲科技股份有限公司 网站IPv6支持度评估方法、装置和设备
US11057340B2 (en) 2019-07-19 2021-07-06 Vmware, Inc. Per-application split-tunneled UDP proxy
US10992579B2 (en) 2019-07-19 2021-04-27 Vmware, Inc. Per-application split-tunneled proxy
US11190480B2 (en) * 2019-07-19 2021-11-30 Vmware, Inc. Transparently proxying connections based on hostnames
CN112583946A (zh) * 2019-09-30 2021-03-30 北京金山云网络技术有限公司 域名管理方法、域名解析方法和装置
CN111200667B (zh) * 2019-12-18 2021-08-10 网宿科技股份有限公司 一种域名解析方法、权威域名服务器和本地域名服务器
CN111565195A (zh) * 2020-05-21 2020-08-21 杭州安恒信息技术股份有限公司 分布式系统的挑战黑洞攻击防御方法和分布式系统
CN111953802A (zh) * 2020-07-06 2020-11-17 网宿科技股份有限公司 一种域名的解析方法、系统、设备及存储介质
CN112769976B (zh) 2021-01-13 2023-10-24 网宿科技股份有限公司 一种域名解析方法及系统
CN112738296B (zh) * 2021-03-02 2022-09-20 中国建设银行股份有限公司 一种域名解析方法和域名解析系统
CN115150358B (zh) * 2021-03-31 2024-02-13 贵州白山云科技股份有限公司 域名获取的方法、电子装置以及系统
CN113382093B (zh) * 2021-05-14 2022-08-26 贵州白山云科技股份有限公司 域名解析的方法、电子装置以及系统
CN115412738B (zh) * 2021-05-26 2023-09-08 广西三方大供应链技术服务有限公司 服务器的调度方法、装置及存储介质
CN114338630B (zh) * 2021-12-13 2024-04-19 海尔优家智能科技（北京）有限公司 域名访问方法、装置、电子设备、存储介质及程序产品

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101986642A (zh) * 2010-10-18 2011-03-16 中国科学院计算技术研究所 一种Domain Flux数据流的检测系统和方法
WO2013059541A1 (en) * 2011-10-19 2013-04-25 Xerocole, Inc. Answer augmentation system for authoritative dns servers
CN103957285A (zh) * 2014-04-18 2014-07-30 上海聚流软件科技有限公司 提供根域名解析服务的方法和系统
CN104796499A (zh) * 2014-01-16 2015-07-22 王正伟 辅助解析方法
CN104995890A (zh) * 2012-12-14 2015-10-21 僖迪网络科技株式会社 用于提供dns服务的方法和设备
CN105357328A (zh) * 2015-09-28 2016-02-24 互联网域名系统北京市工程研究中心有限公司 域名解析方法、dns递归服务器及域名解析系统

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7188138B1 (en) * 1999-03-22 2007-03-06 Eric Schneider Method, product, and apparatus for resource identifier registration and aftermarket services
US7441045B2 (en) * 1999-12-13 2008-10-21 F5 Networks, Inc. Method and system for balancing load distribution on a wide area network
US7653700B1 (en) * 2000-11-16 2010-01-26 Microsoft Corporation System and method for performing client-centric load balancing of multiple globally-dispersed servers
CN100502367C (zh) * 2007-04-04 2009-06-17 华为技术有限公司 保存域名系统记录的方法、装置
US20100070569A1 (en) * 2007-06-07 2010-03-18 Bhavin Turakhia Method and system for providing a predetermined service to a domain registrant by a dns manager
US20090006531A1 (en) * 2007-06-28 2009-01-01 Microsoft Corporation Client request based load balancing
US8032632B2 (en) * 2007-08-14 2011-10-04 Microsoft Corporation Validating change of name server
US8214524B2 (en) * 2007-12-21 2012-07-03 Hostway Corporation System and method for selecting an optimal authoritative name server
US9172713B2 (en) * 2008-09-24 2015-10-27 Neustar, Inc. Secure domain name system
US20100106854A1 (en) * 2008-10-29 2010-04-29 Hostway Corporation System and method for controlling non-existing domain traffic
US9960967B2 (en) * 2009-10-21 2018-05-01 A10 Networks, Inc. Determining an application delivery server based on geo-location information
CN101764747B (zh) * 2009-12-24 2012-05-02 北京云快线软件服务有限公司 内容分发网络流量智能调度方法、装置及系统
CN103314566B (zh) * 2010-11-05 2017-05-03 思杰系统有限公司 用于管理域名系统安全（dnssec）的系统和方法
US8452874B2 (en) * 2010-11-22 2013-05-28 Amazon Technologies, Inc. Request routing processing
US20120166458A1 (en) * 2010-12-23 2012-06-28 Microsoft Corporation Spam tracking analysis reporting system
US20120254386A1 (en) * 2011-04-01 2012-10-04 Verisign, Inc. Transfer of DNSSEC Domains
US9342698B2 (en) * 2011-12-30 2016-05-17 Verisign, Inc. Providing privacy enhanced resolution system in the domain name system
CN102932451B (zh) * 2012-10-31 2015-11-18 北龙中网（北京）科技有限责任公司 一种针对内容分发网络的解决系统
CN105100294B (zh) * 2014-05-20 2018-05-08 阿里巴巴集团控股有限公司 获取网页的方法、系统、网络服务器、浏览器和gslb
CN105282269B (zh) * 2015-11-03 2018-07-06 中国互联网络信息中心 一种本地dns根服务器的配置方法和服务方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101986642A (zh) * 2010-10-18 2011-03-16 中国科学院计算技术研究所 一种Domain Flux数据流的检测系统和方法
WO2013059541A1 (en) * 2011-10-19 2013-04-25 Xerocole, Inc. Answer augmentation system for authoritative dns servers
CN104995890A (zh) * 2012-12-14 2015-10-21 僖迪网络科技株式会社 用于提供dns服务的方法和设备
CN104796499A (zh) * 2014-01-16 2015-07-22 王正伟 辅助解析方法
CN103957285A (zh) * 2014-04-18 2014-07-30 上海聚流软件科技有限公司 提供根域名解析服务的方法和系统
CN105357328A (zh) * 2015-09-28 2016-02-24 互联网域名系统北京市工程研究中心有限公司 域名解析方法、dns递归服务器及域名解析系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111756739A (zh) * 2020-06-24 2020-10-09 中国银行股份有限公司 一种域名解析方法及相关设备
CN111756739B (zh) * 2020-06-24 2022-05-27 中国银行股份有限公司 一种域名解析方法及相关设备

Also Published As

Publication number Publication date
EP3389243B1 (en) 2020-09-09
EP3389243A4 (en) 2019-05-08
US20200084177A1 (en) 2020-03-12
EP3389243A1 (en) 2018-10-17
CN107623751A (zh) 2018-01-23
CN107623751B (zh) 2021-02-12

Similar Documents

Publication Publication Date Title
WO2018010353A1 (zh) Dns网络系统、域名解析方法及系统
US11792079B2 (en) DNS package in a network
US20200220840A1 (en) Method, server and system for resolving domain name
US10084746B2 (en) High performance DNS traffic management
US7499998B2 (en) Arrangement in a server for providing dynamic domain name system services for each received request
US8800011B2 (en) Validating pointer records in a domain name system (DNS) service
US9264358B2 (en) Alias resource record sets
JP5893034B2 (ja) ネットワーク環境における要求ルーティング
US8499077B2 (en) Controlling internet access using DNS root server reputation
TWI652585B (zh) 遠端查詢訊息的方法及伺服器
US9961110B2 (en) Systems and methods for pre-signing of DNSSEC enabled zones into record sets
CN106797410A (zh) 域名解析方法和装置
AU2013206327B2 (en) Systems and methods for automatically providing whois service to top level domains
US9973590B2 (en) User identity differentiated DNS resolution
US20150058999A1 (en) Providing privacy enhanced resolution system in the domain name system
CN108667946B (zh) 一种多域名互备解析管理方法、装置及系统
US20120210002A1 (en) Dynamic walled garden
CN105357175B (zh) 源地址域名安全的查询方法和装置
CN108833424B (zh) 一种获取域名所有资源记录的系统
CN111464668A (zh) 一种快速安全的域名解析方法
WO2017124883A1 (zh) 一种新型权威域名解析服务方法和装置
Flavel et al. Re-evaluating the responsiveness of dns-based network control
Ruohonen Measuring basic load-balancing and fail-over setups for email delivery via dns mx records
CN105978865A (zh) 应用包名验证方法及装置
CN116938875A (zh) 域名检测方法、域名解析器、电子设备和存储介质

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2016908676

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2016908676

Country of ref document: EP

Effective date: 20180709

NENP Non-entry into the national phase

Ref country code: DE