WO2017088690A1

WO2017088690A1 - Method and device for retrieving domain name

Info

Publication number: WO2017088690A1
Application number: PCT/CN2016/106018
Authority: WO
Inventors: 刘学
Original assignee: 阿里巴巴集团控股有限公司
Priority date: 2015-11-25
Filing date: 2016-11-16
Publication date: 2017-06-01
Also published as: CN106776657A; CN106776657B

Abstract

Disclosed is a method for retrieving a domain name. The method comprises: pre-setting a domain name library; after a domain name retrieval request carrying a domain name to be retrieved is received, processing, by means of character reversal, the domain name to be retrieved, to which a designated prefix is added, into an reversed character string to be retrieved, and querying, in the domain name library, whether there is a correlation indicating the matching with the reversed character string to be retrieved; and acquiring a domain name corresponding to the reversed character string to be retrieved according to the correlation in the case where there is the correlation. Since a domain name library includes a currently existing domain name, a reversed character string generated by means of performing character reversal processing on the domain name, to which a designated prefix is added, and a correlation between the domain name and the reversed character string, a relevant required domain name can be retrieved easily and quickly from very long domain names, so that the domain name retrieval efficiency is greatly improved.

Description

Domain name retrieval method and device

The present application claims the priority of the Chinese Patent Application Serial No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The present application relates to the field of communications technologies, and in particular, to a domain name retrieval method. The application also relates to a domain name retrieval device.

Background technique

Domain Name is the name of a computer or group of computers on the Internet consisting of a series of dot-separated names used to identify the computer's electronic location (sometimes referred to as geographic location) during data transmission. A geographical domain name refers to a local area with administrative autonomy). The purpose of a domain name is to facilitate the memorization and communication of the addresses of a group of servers (website, email, FTP, etc.). In the case where the IP address changes, the domain name can remain unchanged by changing the resolution correspondence. Therefore, the name of a company, government, non-governmental organization, or other entity registered with a domain name registration inquiries is the network address of the enterprise or organization on the Internet.

The Domain Name System (DNS) is a core service of the Internet. It acts as a distributed database that can map domain names and IP addresses to each other, making it easier for people to access the Internet without having to remember to be able to be machined. The number of IP strings read directly. The labels in the domain name are composed of English letters and numbers, each of which does not exceed 63 characters, and does not distinguish between uppercase and lowercase letters. No other punctuation marks can be used in the label except the hyphen (-). The lowest level domain name is written on the far left, and the highest level domain name is written on the far right. The sub-domain is the next level of the top-level domain (first-level domain). The domain name includes two "." or a "." and a "/".

Take an ordinary subdomain "img.cms.topdomainsample.com" as an example. The URL is composed of two parts. The label "img.cms.topdomainsample" is the body of the domain name, and the last label "com" is The suffix of the domain name, which represents a com international domain name, is a top-level domain name.

The inventor found in the process of implementing the present application that since the existing network devices store a large number of domain names actually used by users, the retrieval of domain names will become very slow and inefficient. This is because the prior art needs to add a "." as a prefix to the beginning of the domain name currently available for retrieval, and then retrieve the domain name ending with the domain to be retrieved in all domain names to which "." is added. Because only such a search can guarantee the accuracy and accuracy of the search results.

Take the above "img.cms.topdomainsample.com" domain name as an example. When the technician needs to search for the domain name of "topdomainsample.com" or its related subdomain name in the network device, all the currently available domains need to be retrieved. The name is preceded by a "." as a prefix, and then the domain name ending with ".topdomainsample.com" is queried and retrieved. This causes each domain name query to involve the processing of all domain names, which consumes a lot of Processing and computing resources.

It can be seen that how to quickly search for a specific domain name in a large number of domain names has become a technical problem to be solved by those skilled in the art.

Summary of the invention

The present application provides a domain name retrieval method for quickly searching for a matching domain name or sub-domain name in a massive domain name, and improving retrieval efficiency on the basis of saving resource consumption. The method pre-sets a domain name library, where the domain name library includes a currently existing domain name, an inverted character string generated by the character domain after character addition processing after adding the specified prefix, and the domain name and the inverted character string. The correspondence between the two also includes:

Receiving a domain name retrieval request carrying a domain name to be retrieved;

Transmitting the domain name to be retrieved with the specified prefix into a reversed character string to be retrieved by character inversion;

Querying, in the domain name database, whether there is a correspondence corresponding to the inverted string to be retrieved;

If yes, the domain name corresponding to the inverted string to be retrieved is obtained according to the correspondence.

Preferably, the domain name to be retrieved to which the specified prefix is added is processed by character inversion into a reversed character string to be retrieved, specifically:

Adding the specified prefix to the header of the domain name to be retrieved, and using the domain name to be retrieved with the specified prefix as the string to be reversed;

And generating, according to each character in the to-be-reversed character string, the reversed character string to be retrieved by reverse ordering.

Preferably, the method further comprises:

If there is no corresponding relationship in the domain name library that matches the inverted string to be searched, the sender of the domain name retrieval request returns a retrieval failure response.

Preferably, before receiving the domain name retrieval request carrying the domain name to be retrieved, the method further includes:

Receiving a domain name addition request carrying the domain name;

Adding the specified prefix to the header of the domain name, and processing the domain name adding the specified prefix into a reversed character string by character inversion;

Generating a correspondence between the domain name and the inverted character string;

Adding the domain name, the inverted string, and the corresponding relationship to the domain name library.

Preferably, the specified prefix is a connector between each character in the domain name.

Correspondingly, the present application also proposes a domain name retrieval device, which pre-sets a domain name library, in the domain name library And the reversed character string generated by the character inversion process after the domain name is added to the domain name, and the correspondence between the domain name and the reversed character string, and the following:

Receiving a module, receiving a domain name retrieval request carrying a domain name to be retrieved;

Inverting the module, and adding the domain name to be retrieved with the specified prefix to the inverted string to be retrieved by character inversion;

The query module queries, in the domain name database, whether there is a corresponding relationship that matches the inverted string to be retrieved;

And obtaining, by the obtaining module, a domain name corresponding to the inverted character string to be retrieved according to the correspondence relationship when a correspondence relationship between the domain name and the reversed character string to be searched is obtained.

Preferably, the inversion module is specifically configured to:

Preferably, the method further comprises:

The returning module returns a retrieval failure response to the sender of the domain name retrieval request when there is no correspondence relationship with the inverted string to be retrieved in the domain name database.

Preferably, the method further comprises:

Adding a module, receiving a domain name adding request that carries the domain name, adding the specified prefix to the header of the domain name, and processing the domain name that adds the specified prefix into a reversed string by using a character inversion to generate the domain name. And corresponding to the reversed string, adding the domain name, the reversed string, and the corresponding relationship to the domain name library.

By applying the technical solution of the present invention, the domain name database is set in advance, and after receiving the domain name retrieval request carrying the domain name to be retrieved, the domain name to be retrieved to which the specified prefix is added is processed by the character inversion into the inverted string to be retrieved, and Querying in the domain name database whether there is a corresponding relationship matching the inverted string to be retrieved, and obtaining a domain name corresponding to the inverted string to be retrieved according to the corresponding relationship in the case that the corresponding relationship exists, because the domain name library includes the currently existing domain name The reversed string generated by the character inversion after the specified prefix is added, and the correspondence between the domain name and the inverted string, so that the domain name required for the relevant domain name can be quickly and easily retrieved in the massive domain name. , greatly improving the efficiency of domain name retrieval.

DRAWINGS

FIG. 1 is a schematic flowchart diagram of a domain name retrieval method according to the present application;

2 is a schematic diagram of a data pre-processing procedure according to a specific embodiment of the present application;

3 is a schematic diagram of a data retrieval process according to a specific embodiment of the present application;

FIG. 4 is a schematic structural diagram of a domain name retrieval device according to the present application.

detailed description

In order to solve the problems involved in the background art, the present application proposes a domain name retrieval method by adding a specified prefix (for example, ".") to a domain name, and then performing a character reverse on a character string to which the domain name of the specified prefix is added. Transfer processing, which is used as a search index to search in the preset domain name database. The domain name library not only contains the currently existing domain name, but also contains the reversed string generated by the character inversion after the specified prefix is added, and the correspondence between the domain name and the inverted string. Quickly query the corresponding domain name through the corresponding relationship. Thereby, the fast retrieval of the domain name is realized, so that the domain name query efficiency can be significantly improved in the face of a large number of domain names.

In order to realize the fast retrieval of the domain name, the present application processes the domain name to be retrieved in combination with the specified prefix, and also performs special reverse processing on the existing domain name in combination with the specified prefix. Therefore, before implementing the various steps of the technical solution of the present application, the domain name library is pre-set, and the domain name library includes, in addition to the currently existing domain name, the domain name generated by the character inversion processing after adding the specified prefix. Reverses the string and the correspondence between the domain name and the inverted string.

As shown in FIG. 1 , a schematic flowchart of a domain name retrieval method proposed by the present application includes the following steps:

S101. Receive a domain name retrieval request that carries a domain name to be retrieved.

S102. The domain name to be retrieved to which the specified prefix is added is processed by character inversion into an inverted character string to be retrieved.

As described above, the present application sets a special domain name library to facilitate the retrieval of a domain name, which includes a domain name, a reversed character string, and a correspondence between the two. In the face of the newly added domain name, the preferred embodiment of the present application also proposes a corresponding processing flow to ensure that the domain name library can cover all current domain names. Specific steps are as follows:

Step a) receiving a domain name addition request carrying the domain name;

Step b) adding the specified prefix to the header of the domain name, and processing the domain name adding the specified prefix into a reversed character string by character inversion;

Step c) generating a correspondence between the domain name and the inverted character string;

Step d) adding the domain name, the inverted character string, and the corresponding relationship to the domain name library.

In the above process and S102, the process of generating the inverted character string is involved. Since the domain name is composed of individual characters, the inverted character string is generated by the reverse ordering of the characters after the domain name is added with the specified prefix. In a preferred embodiment of the present application, a corresponding scheme is proposed for the generation of the inverted character string to be retrieved:

Step a) adding the specified prefix to the header of the domain name to be retrieved, and using the domain name to be retrieved with the specified prefix as the string to be reversed;

Step b) generating, according to the respective characters in the to-be-reversed character string, the reversed characters to be retrieved by reverse ordering string.

It should be noted that the above solution is only a preferred embodiment proposed by the present application for generating a reversed string. On this basis, the technician can perform improvement or optimization, and apply the same to the domain name that will add the specified prefix. The process of inverting a character string by character inversion processing is all within the scope of protection of the present application.

In the data pre-processing flow diagram in the specific embodiment of the present application shown in FIG. 2, based on the preset domain name database, when a new domain name needs to be added, first add a “.” as a prefix for all domain names to be added. For example, when it is necessary to add two new domain names "img.cms.topdomainsample.com" and "img.cms.2topdomainsample.com", the specific embodiment adds the specified prefix "." to it, respectively. The .img.cms.topdomainsample.com with the specified prefix and ".img.cms.2topdomainsample.com" are added to perform character inversion processing, and the final result is "moc.elpmasniamodpot.smc.gmi." "moc.elpmasniamodpot2.smc.gmi." Finally, the specific embodiment corresponds to "moc.elpmasniamodpot.smc.gmi." and "img.cms.2topdomainsample.com" corresponding to "moc.cms.topdomainsample.com". Elpmasniamodpot2.smc.gmi." is stored in the domain name repository.

It should be noted that the final purpose of the inversion processing involved in the present application is to obtain a field in which each character is opposite to the original input content. Therefore, the above processing manner is only a preferred processing manner, and those skilled in the art may propose other The manner of treatment is all within the scope of protection of the present invention.

S103. Query, in the domain name database, whether there is a correspondence that matches the inverted string to be searched.

In addition to the current domain name, the domain name library also contains the reversed string obtained by the current domain name combined with the specified prefix for character inversion processing, and also stores the original domain name and the corresponding inverted string. Correspondence between the two, so the present application can be retrieved based on the string with the prefix and the character inversion added to the column, thereby obtaining a normal and correct domain name.

S104. If yes, obtain a domain name corresponding to the inverted string to be retrieved according to the correspondence.

After the domain name corresponding to the reversed string is queried, the corresponding domain name may be obtained according to the queried correspondence, and the domain name is provided to the sender of the domain name retrieval request. Accordingly, if there is no correspondence matching the inverted character string to be searched, the search failure response is returned to the sender of the domain name search request.

Taking the domain name appearing in the above specific embodiment as an example, in the data retrieval process diagram shown in FIG. 3, when needed When querying the subdomain of the domain name "topdomainsample.com" (query expression domain=“topdomainsample.com”), the domain name retrieval will be completed through the following process:

Step a) Add a prefix "." before the domain name to get a new domainTmp, which is ".topdomainsample.com";

Step b) Perform the character inversion processing on "topdomainsample.com" in the previous step to obtain the domain name prefix (domainPreQuery) "moc.elpmasniamodpot."

Step c) querying a correspondence relationship including "moc.elpmasniamodpot." in the domain name database, and obtaining a domain name to be retrieved based on the domain name corresponding to the corresponding relationship.

In order to achieve the above objective, the present application further provides a domain name retrieval device, which pre-sets a domain name library, where the domain name library includes a currently existing domain name, and the domain name is generated by character inversion processing after adding a specified prefix. Inverting the string, and the correspondence between the domain name and the reversed string, as shown in FIG. 4, the device further includes:

The receiving module 410 receives a domain name retrieval request carrying a domain name to be retrieved;

The inversion module 420 is configured to process the domain name to be retrieved by adding the specified prefix into a reversed character string to be retrieved by using a character inversion;

The querying module 430 is configured to query, in the domain name database, whether there is a corresponding relationship that matches the inverted string to be retrieved;

The obtaining module 440 is configured to acquire a domain name corresponding to the inverted string to be retrieved according to the correspondence relationship when the corresponding relationship between the domain name and the reversed character string to be searched is obtained.

In a specific application scenario, the inversion module is specifically configured to:

In specific application scenarios, it also includes:

In a specific application scenario, the specified prefix is a connector between each character in the domain name.

It can be seen that, by applying the technical solution of the present application, the domain name database is set in advance, and after receiving the domain name retrieval request carrying the domain name to be retrieved, the domain name to be retrieved to which the specified prefix is added is processed by the character inversion as the inverse to be retrieved. Transfer the character string, and query in the domain name database whether there is a correspondence matching the inverted string to be retrieved, and if there is a corresponding relationship, obtain the domain name corresponding to the inverted string to be retrieved according to the corresponding relationship, because the domain name database Contains the existing domain name, the reversed string generated by the character inversion process after adding the specified prefix, and the correspondence between the domain name and the reversed string, so it can be quickly and easily retrieved in the massive domain name. The related domain names are required to greatly improve the efficiency of domain name retrieval.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various implementation scenarios of the present application.

A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily required to implement the application.

A person skilled in the art may understand that the modules in the apparatus in the implementation scenario may be distributed in the apparatus for implementing the scenario according to the implementation scenario description, or may be correspondingly changed in one or more devices different from the implementation scenario. The modules of the above implementation scenarios may be combined into one module, or may be further split into multiple sub-modules.

The above serial numbers are only for the description, and do not represent the advantages and disadvantages of the implementation scenario.

The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present application.

Claims

A domain name retrieval method, characterized in that a domain name library is set in advance, and the domain name library includes a currently existing domain name, an inverted character string generated by the character domain after character addition processing after adding a specified prefix, and the The correspondence between the domain name and the inverted string, the method includes:

Receiving a domain name retrieval request carrying a domain name to be retrieved;

Transmitting the domain name to be retrieved with the specified prefix into a reversed character string to be retrieved by character inversion;

Querying, in the domain name database, whether there is a correspondence corresponding to the inverted string to be retrieved;

If yes, the domain name corresponding to the inverted string to be retrieved is obtained according to the correspondence.
The method according to claim 1, wherein the domain name to be retrieved to which the specified prefix is added is processed by character inversion into a reversed character string to be retrieved, specifically:

Adding the specified prefix to the header of the domain name to be retrieved, and using the domain name to be retrieved with the specified prefix as the string to be reversed;

And generating, according to each character in the to-be-reversed character string, the reversed character string to be retrieved by reverse ordering.
The method of claim 1 further comprising:

If there is no corresponding relationship in the domain name library that matches the inverted string to be searched, the sender of the domain name retrieval request returns a retrieval failure response.
The method according to claim 1, wherein before receiving the domain name retrieval request carrying the domain name to be retrieved, the method further comprises:

Receiving a domain name addition request carrying the domain name;

Adding the specified prefix to the header of the domain name, and processing the domain name adding the specified prefix into a reversed character string by character inversion;

Generating a correspondence between the domain name to be added and the inverted character string to be added;

Adding the domain name, the inverted string, and the corresponding relationship to the domain name library.
A method according to any one of claims 1 to 4, wherein

The specified prefix is a connector between each character in the domain name.
A domain name retrieving device, wherein the device pre-sets a domain name library, where the domain name library includes a currently existing domain name, and the reversed character string generated by the character inversion process after adding the specified prefix, And the correspondence between the domain name and the reversed string, the device further includes:

Receiving a module, receiving a domain name retrieval request carrying a domain name to be retrieved;

Inverting the module, and adding the domain name to be retrieved with the specified prefix to the inverted string to be retrieved by character inversion;

The query module queries, in the domain name database, whether there is a corresponding relationship that matches the inverted string to be retrieved;

And obtaining, by the obtaining module, a domain name corresponding to the inverted character string to be retrieved according to the correspondence relationship when a correspondence relationship between the domain name and the reversed character string to be searched is obtained.
The device according to claim 6, wherein the inversion module is specifically configured to:

Adding the specified prefix to the header of the domain name to be retrieved, and using the domain name to be retrieved with the specified prefix as the string to be reversed;

And generating, according to each character in the to-be-reversed character string, the reversed character string to be retrieved by reverse ordering.
The device of claim 6 further comprising:

The returning module returns a retrieval failure response to the sender of the domain name retrieval request when there is no correspondence relationship with the inverted string to be retrieved in the domain name database.
The device of claim 6 further comprising:

Adding a module, receiving a domain name adding request that carries the domain name, adding the specified prefix to the header of the domain name, and processing the domain name that adds the specified prefix into a reversed string by using a character inversion to generate the domain name. And corresponding to the reversed string, adding the domain name, the reversed string, and the corresponding relationship to the domain name library.
A device according to any of claims 6-9, characterized in that

The specified prefix is a connector between each character in the domain name.