CN108667946B - Multi-domain name mutual backup analysis management method, device and system - Google Patents
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Abstract
The invention discloses a multi-domain name mutual backup analysis management method, a device and a system, wherein the method comprises the following steps: the method comprises the steps that a server sets an accessible domain name list, a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address list; the server receives the DNS request message, analyzes an access source IP and a target domain name from the DNS request message, judges that the target domain name is in an accessible domain name list, analyzes a host and a domain from the target domain name, determines a region corresponding to the source IP according to a source IP address and a first mapping relation set, determines a network server IP list corresponding to the request message according to the host, the region and a second mapping relation set, and encapsulates the network server IP list into a response packet and transmits the response packet. The invention can greatly reduce the space occupied by the configuration files and the configuration files in the memory state, improve the loading efficiency of the configuration files and improve the processing efficiency of the DNS.
Description
Technical Field
The invention relates to the technical field of internet, in particular to a multi-domain name mutual backup analysis management method, device and system.
Background
After receiving the DNS request message, a Domain Name system Server (DNS, abbreviation: DNS) parses a source IP and an access target Domain Name from the DNS request message, queries a Domain to which the source IP belongs when determining that a Domain to which the access target Domain Name belongs is a Domain in a serviceable Domain list, queries a resolution result corresponding to the access target Domain Name and the Domain, that is, an IP address list of a web Server, encapsulates the IP address list in a response message, and sends the response message to a sender of the DNS request message.
When the IP address lists of the network servers in different domains are backed up through the configuration file in the DNS, different access destination domain names correspond to the same IP address list. The configuration file in the prior art includes the product of the number of all supported host names and the number of domains for backup, for example, the host names www and mail, the domains for backup are a.com, b.com, c.com, d.com, and the same IP address list is configured for all host and all domain combinations for backup in the configuration file. The configuration file has larger capacity, occupies larger space, and the DNS has longer time consumption for loading the configuration file.
Disclosure of Invention
In order to solve the above disadvantages in the prior art, the present invention provides a method, an apparatus and a system for multi-domain mutual backup resolution management.
The invention also provides a multi-domain name mutual backup analysis management method, which comprises the following steps:
the method comprises the steps that a server sets an accessible domain name list, a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address list;
the server receives a DNS request message, analyzes an access source IP and a target domain name from the DNS request message, judges that the target domain name is in an accessible domain name list, analyzes a host and a domain from the target domain name, determines a region corresponding to the source IP according to the source IP address and the first mapping relation set, determines a network server IP list corresponding to the request message according to the host, the region and the second mapping relation set, and encapsulates the network server IP list into a response packet and sends the response packet.
The multi-domain name mutual backup analysis management method also has the following characteristics:
the method further comprises the following steps: and when the server judges that the target domain name is not in the accessible domain name list, rejecting the DNS request message.
The multi-domain name mutual backup analysis management method also has the following characteristics:
the method for the server to judge that the target domain name is in the accessible domain name list comprises the following steps: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
The multi-domain name mutual backup analysis management method also has the following characteristics:
the method for resolving the host and the domain from the target domain name comprises the following steps: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
The multi-domain name mutual backup analysis management method also has the following characteristics:
the method further comprises the following steps: configuring a domain name list by a client, and setting the weight of each domain name in the domain name list;
the method comprises the steps that when a DNS request message needs to be sent, a domain name with the highest weight is selected from a domain name list to serve as a target domain name carried in the DNS request message, the DNS request message carrying the target domain name is sent to a server, when a response message aiming at the DNS request message is not received within a preset time length, the domain name with the highest weight except the selected domain name is selected from the domain name list to serve as the target domain name carried in the DNS request message, the DNS request message carrying the target domain name is sent to the server, and the like until the response message aiming at the DNS request message is received from the server, or until the response message aiming at the DNS request message is not received from the server and all domain names in the domain name list are selected.
The multi-domain name mutual backup analysis management method also has the following characteristics:
the domain name list is a subdomain of the accessible domain name list, and the host portion of each domain name is the same.
The invention provides a multi-domain name mutual backup analysis management device, which is applied to a server and comprises the following components:
the setting module is used for setting an accessible domain name list, setting a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address list;
the receiving module is used for receiving a DNS request message;
the analysis module is used for analyzing an access source IP and a target domain name from the DNS request message; the domain name analyzing module is further used for analyzing the host and the domain from the target domain name when the judging module judges that the target domain name is positioned in the accessible domain name list;
a determining module, configured to determine whether the target domain name is in the accessible domain name list;
and the processing module is used for determining a region corresponding to the source IP according to the source IP address and the first mapping relation set, determining a network server IP list corresponding to the request message according to the host, the region and the second mapping relation set, and packaging the network server IP list into a response packet and sending the response packet.
The multi-domain name mutual backup analysis management device also has the following characteristics:
the method for determining that the target domain name is in the list of accessible domain names using the following method further comprises: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
The multi-domain name mutual backup analysis management device also has the following characteristics:
the resolution module is further configured to resolve the host and domain from the target domain name using the following method: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
The multi-domain name mutual backup analysis management system comprises the device and a client, wherein the client comprises a configuration module, a selection module, a sending module, a receiving module and a judgment module;
the configuration module is used for configuring a domain name list and setting the weight of each domain name in the domain name list;
the selection module is used for selecting a domain name with the highest weight except the selected domain name from the domain name list as a target domain name carried in the DNS request message when the client needs to send the DNS request message; the domain name list is used for selecting a domain name with the highest weight except the selected domain name from the domain name list as a target domain name carried in the DNS request message after the judging module judges whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the sending module sends the DNS request message;
the sending module is used for sending a DNS request message carrying the target domain name selected by the selecting module to the server;
the judging module is used for judging whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the DNS request message is sent by the sending module;
and the receiving module is used for receiving a response message aiming at the DNS request message from the server. According to the invention, the available domain list, the first mapping relation set and the second mapping relation set are set, the configuration file is divided into three parts, so that mutual backup use of a plurality of domain names is realized, the space occupied by the configuration file and the configuration file in a memory state can be greatly reduced while quick query is realized, the loading efficiency of the configuration file is improved, and the processing efficiency of the DNS is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flowchart of a multi-domain mutual backup resolution management method in an embodiment;
FIG. 2 is a block diagram of an embodiment of a multi-domain mutual backup resolution management apparatus.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
FIG. 1 is a flowchart of a multi-domain mutual backup resolution management method in an embodiment; the method comprises the following steps:
102, a server receives a DNS request message, resolves an access source IP and a target domain name from the DNS request message, determines that the target domain name is in the accessible domain name list, resolves a host and a domain from the target domain name, determines a region corresponding to the source IP according to the source IP address and the first mapping relation set, and determines a network server IP address list corresponding to the request message according to the host, the region and the second mapping relation set;
In this method, the server rejects the DNS request packet when determining that the domain is not in the accessible domain name list.
The accessible domain name list may be a preconfigured static configuration file, and the domain names in the accessible domain name list are all domains that have been authenticated and registered by the real name system of the organization and are pointed to by ns (name server) configured in the registry.
In step 102, the method for the server to determine that the target domain name is in the accessible domain name list includes: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
In step 102, the method for resolving the host and the domain from the target domain name includes: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
The method further comprises the execution content of the client side, and specifically comprises the following steps: the client configures a domain name list and sets the weight of each domain name in the domain name list. When a client needs to send a DNS request message, selecting a domain name with the highest weight from the domain name list as a target domain name carried in the DNS request message, sending the DNS request message carrying the target domain name to the server, when a response message aiming at the DNS request message is not received within a preset time length, selecting a domain name with the highest weight except the selected domain name from the domain name list as the target domain name carried in the DNS request message, sending the DNS request message carrying the target domain name to the server, and so on until the response message aiming at the DNS request message is received from the server, or until the response message aiming at the DNS request message is not received from the server and all domain names in the domain name list are selected.
The client-side domain name list is a subdomain that has access to the domain name list, and the host portion of each domain name is the same. The weight of the domain name is a real number (e.g., a positive integer in a range of 1-100) within a preset range, and the mode with the highest weight is determined in such a way that the higher the value of the weight parameter is, the higher the weight is, and the higher the priority of the selection of the domain name with the higher weight is.
FIG. 2 is a block diagram of an embodiment of a multi-domain mutual backup analysis management apparatus, which is applied to a server and includes a setting module, a receiving module, an analysis module, a determining module, and a processing module.
The setting module is used for setting an accessible domain name list, setting a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address;
the receiving module is used for receiving a DNS request message;
the analysis module is used for analyzing an access source IP and a target domain name from the DNS request message; the domain name analyzing module is further used for analyzing the host and the domain from the target domain name when the judging module judges that the target domain name is positioned in the accessible domain name list;
the judging module is used for judging whether the target domain name is in the accessible domain name list or not;
the processing module is configured to determine, when the determining module determines that the domain is in the accessible domain name list, a region corresponding to the source IP according to the source IP address and the first mapping relationship set, determine, according to the host, the region, and the second mapping relationship set, a network server IP corresponding to the request packet, and encapsulate the IP address list into a response packet and send the response packet.
The processing module is further configured to reject the DNS request packet when the determining module determines that the domain is not in the accessible domain name list.
The method for determining that the target domain name is in the list of accessible domain names using the following method further comprises: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
The resolution module is further configured to resolve the host and domain from the target domain name using the following method: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
The multi-domain name mutual backup analysis management system in the embodiment comprises the device for the server and further comprises a client, wherein the client comprises a configuration module, a selection module, a sending module, a receiving module and a judgment module.
The configuration module is used for configuring a domain name list and setting the weight of each domain name in the domain name list;
the selection module is used for selecting the domain name with the highest weight except the selected domain name from the domain name list as the target domain name carried in the DNS request message when the client needs to send the DNS request message; the domain name list is used for selecting a domain name with the highest weight except the selected domain name from the domain name list as a target domain name carried in the DNS request message after the judging module judges whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the sending module sends the DNS request message;
the sending module is used for sending a DNS request message carrying the target domain name selected by the selecting module to the server;
the judging module is used for judging whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the sending module sends the DNS request message;
the receiving module is used for receiving a response message aiming at the DNS request message from the server. The domain name list of the client is a subdomain of the server that has access to the domain name list, and the host portion of each domain name is the same.
The specific embodiment is as follows:
DNS configures accessible domains, for example in table 1, including www.a.com, www.b.com, www.c.com.
The DNS also configures a first mapping relation set corresponding to the source IP address and the region. For example:
source IP region
106.38.250.150 Beijing Unicom
106.38.250.199 Shanghai Unicom
The DNS also configures a second set of mappings for the host, domain, and network server IP address lists. For example:
host regional network server IP address list
www Beijing Union Listing 1
xxx shanghai unicom list 2
The server receives the DNS request message, resolves an access source IP of 106.38.250.150 and a target domain name of www.a.com from the DNS request message, judges that the target domain name is in an accessible domain name list, and resolves a host of www and a.com from the target domain name. And determining that the region corresponding to the source IP is Beijing Unicom according to the source IP address 106.38.250.150 and the first mapping relation set, determining that a network server IP list corresponding to the request message is a list 1 according to the host, namely www, the region, namely Beijing Unicom, and the second mapping relation set, and encapsulating the list 1 into a response packet and sending the response packet.
According to the invention, the available domain list, the first mapping relation set and the second mapping relation set are set, the configuration file is divided into three parts, so that mutual backup use of a plurality of domain names is realized, the space occupied by the configuration file and the configuration file in a memory state can be greatly reduced while quick query is realized, the loading efficiency of the configuration file is improved, and the processing efficiency of the DNS is improved.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.
Claims (10)
1. A multi-domain name mutual backup analysis management method is characterized by comprising the following steps:
the method comprises the steps that a server sets an accessible domain name list, a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address list;
the server receives a DNS request message, analyzes an access source IP and a target domain name from the DNS request message, judges that the target domain name is in an accessible domain name list, analyzes a host and a domain from the target domain name, determines a region corresponding to the source IP according to the source IP address and the first mapping relation set, determines a network server IP list corresponding to the request message according to the host, the region and the second mapping relation set, and encapsulates the network server IP list into a response packet and sends the response packet.
2. The multi-domain mutual backup resolution management method according to claim 1,
the method further comprises the following steps: and when the server judges that the target domain name is not in the accessible domain name list, rejecting the DNS request message.
3. The multi-domain mutual backup resolution management method according to claim 1,
the method for the server to judge that the target domain name is in the accessible domain name list comprises the following steps: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
4. The multi-domain mutual backup resolution management method according to claim 1,
the method for resolving the host and the domain from the target domain name comprises the following steps: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
5. The multi-domain mutual backup resolution management method according to claim 1,
the method further comprises the following steps: configuring a domain name list by a client, and setting the weight of each domain name in the domain name list;
the method comprises the steps that when a DNS request message needs to be sent, a domain name with the highest weight is selected from a domain name list to serve as a target domain name carried in the DNS request message, the DNS request message carrying the target domain name is sent to a server, when a response message aiming at the DNS request message is not received within a preset time length, the domain name with the highest weight except the selected domain name is selected from the domain name list to serve as the target domain name carried in the DNS request message, the DNS request message carrying the target domain name is sent to the server, and the like until the response message aiming at the DNS request message is received from the server, or until the response message aiming at the DNS request message is not received from the server and all domain names in the domain name list are selected.
6. The multi-domain mutual backup resolution management method according to claim 5,
the domain name list is a subdomain of the accessible domain name list, and the host portion of each domain name is the same.
7. A multi-domain name mutual backup analysis management device is applied to a server and is characterized by comprising:
the setting module is used for setting an accessible domain name list, setting a first mapping relation set of a source IP address and a region and a second mapping relation set of a host, the region and a network server IP address list;
the receiving module is used for receiving a DNS request message;
the analysis module is used for analyzing an access source IP and a target domain name from the DNS request message;
a determining module, configured to determine whether the target domain name is in the accessible domain name list;
the resolution module is further configured to resolve the host and the domain from the target domain name when the determination module determines that the target domain name is located in the accessible domain name list;
and the processing module is used for determining a region corresponding to the source IP according to the source IP address and the first mapping relation set, determining a network server IP list corresponding to the request message according to the host, the region and the second mapping relation set, and packaging the network server IP list into a response packet and sending the response packet.
8. The mutual domain name resolution management apparatus according to claim 7,
the method for determining that the target domain name is in the list of accessible domain names using the following method further comprises: and sequentially judging whether the target domain name is a subdomain of the domain names in the accessible domain name list, and if the target domain name is the subdomain of the domain names in at least one accessible domain name list, judging that the target domain name is in the accessible domain name list.
9. The mutual domain name resolution management apparatus according to claim 7,
the resolution module is further configured to resolve the host and domain from the target domain name using the following method: if the target domain name is a sub-domain of only one domain name in the accessible domain name list, taking the domain name as a domain of the target domain name, and taking a domain name prefix of the target domain name as a host part; and if the target domain name is a subdomain of a plurality of domain names in the accessible domain name list, selecting a domain with the lowest domain name level as a domain of the target domain name, wherein a domain name prefix of the target domain name is a host part.
10. A multi-domain name mutual backup analysis management system, comprising the apparatus of claim 7, 8 or 9, and further comprising a client, wherein the client comprises a configuration module, a selection module, a sending module, a receiving module, and a judgment module;
the configuration module is used for configuring a domain name list and setting the weight of each domain name in the domain name list;
the selection module is used for selecting a domain name with the highest weight except the selected domain name from the domain name list as a target domain name carried in the DNS request message when the client needs to send the DNS request message; the domain name list is used for selecting a domain name with the highest weight except the selected domain name from the domain name list as a target domain name carried in the DNS request message after the judging module judges whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the sending module sends the DNS request message;
the sending module is used for sending a DNS request message carrying the target domain name selected by the selecting module to the server;
the judging module is used for judging whether the receiving module receives a response message aiming at the DNS request message within a preset time length after the DNS request message is sent by the sending module;
and the receiving module is used for receiving a response message aiming at the DNS request message from the server.
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| CN111866203B (en) * | 2019-04-29 | 2022-04-19 | 贵州白山云科技股份有限公司 | Domain name resolution method and device, readable storage medium and equipment |
| CN110572377B (en) * | 2019-08-22 | 2022-02-22 | 网宿科技股份有限公司 | Data forwarding method, plug-in and domain name server |
| CN110602264B (en) * | 2019-09-02 | 2022-05-10 | 中国移动通信集团江苏有限公司 | Method, apparatus, device and medium for transferring domain name resolution address weight information |
| CN111405079A (en) * | 2020-03-06 | 2020-07-10 | 深圳市宝能投资集团有限公司 | Domain name resolution method and device, storage medium and electronic equipment |
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