WO2017076327A1

WO2017076327A1 - Method and apparatus for processing domain name resolution request, and server

Info

Publication number: WO2017076327A1
Application number: PCT/CN2016/104586
Authority: WO
Inventors: 董红
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-11-04
Filing date: 2016-11-04
Publication date: 2017-05-11
Also published as: CN106657426A

Abstract

The present invention provides a method and apparatus for processing a domain name resolution request, and a server. The method comprises: receiving a domain name resolution request carrying domain name information; sending the domain name resolution request to at least one first server according to a preset domain name resolution mode; receiving a domain name resolution effective response message returned, according to domain name information in the domain name resolution request, by the first server; and acquiring a request resource from a source station according to the domain name resolution effective response message. By sending a domain name resolution request to at least one server via a preset domain name resolution mode, the present invention improves the domain name resolution success rate and the domain name resolution efficiency, ensures that a user equipment can acquire a resource requested by the user equipment when a domain name of a server returns to a source, and improves the user experience.

Description

Method, device and server for processing domain name resolution request

Technical field

The present invention relates to the field of Internet cache application technologies, and in particular, to a method, an apparatus, and a server for processing a domain name resolution request.

Background technique

Nginx is a high-performance Hyper Text Transfer Protocol (HTTP) and reverse proxy server. It is also an Internet Mail Access Protocol (IMAP)/Post Office Protocol version 3 (Post Office Protocol - Version 3, referred to as POP3)/Simple Mail Transfer Protocol (STMP) proxy server. After using the Hypertext Transfer Protocol (HTTP) request sent by the client, the Nginx Cache server checks whether the request file is stored on the local disk. If so, directly take the local storage. The file is sent to the client. If not, the proxy client needs to obtain the requested file from the source station. This action is called return source. The source includes the following steps: the first step is to perform domain name resolution, obtain the source station Internet Protocol (IP) address, the second step is to send an HTTP request to the source station, and the third step is to receive the requested file and send it to The client determines whether to cache to the local disk based on the HTTP response header field. In the domain name resolution of the first step back to the source, Nginx can configure multiple DNS (Domain Name System) servers, but polls the round robin (Round Robin), that is, the first parsing request is sent. To DNS server 1, the second resolution request is sent to DNS server 2, and the nth request is sent to DNS server n. When a DNS server is abnormal, the domain name resolution request sent by Nginx may not receive a response or may receive a response to a server failure, so that Nginx will fail to return the source, causing the client service to fail. user experience.

Summary of the invention

The object of the embodiment of the present invention is to provide a method for processing a domain name resolution request, which is used to solve the problem that the source device fails due to a certain DNS server abnormality when the server domain name is returned in the prior art, so that the user equipment cannot obtain the requested resource. .

In order to achieve the above object, an embodiment of the present invention provides a method for processing a domain name resolution request, including:

Receiving a domain name resolution request carrying domain name information;

And sending, by the preset domain name resolution mode, the domain name resolution request to the at least one first server;

Receiving a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request;

And obtaining the requested resource from the source station according to the domain name resolution valid response message.

The step of sending the domain name resolution request to the at least one first server according to the preset domain name resolution mode includes:

The domain name resolution request is sent to a first server in descending order of the first server settings in the configuration file.

At the same time, the domain name resolution request is sent to multiple first servers in the configuration file.

The domain name resolution valid response message includes a source station IP address corresponding to the domain name information.

The step of obtaining the requested resource from the source station according to the domain name resolution valid response message includes:

Sending the domain name resolution valid response message to the second server, so that the second server establishes a resource request connection with the source station;

The request resource is obtained from the source station by the second server and the resource request connection of the source station.

Among them, it also includes:

Stop receiving the domain name resolution request to the next first server when receiving the domain name resolution valid response message returned by any of the first servers; or

After receiving the domain name resolution failure message returned by the first server or the domain name resolution request timeout is unresponsive, the domain name resolution request is sent to the next first server until receiving a valid domain name resolution response returned by any first server. As of the news.

The embodiment of the invention further provides a processing device for processing a domain name resolution request, comprising:

The first receiving module is configured to receive a domain name resolution request carrying domain name information;

The sending module is configured to send the domain name resolution request to the at least one first server according to the preset domain name resolution mode;

a second receiving module, configured to receive a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request;

The resource obtaining module is configured to obtain a request resource from the source station according to the domain name resolution valid response message.

The sending module includes:

The priority sending submodule is configured to send the domain name resolution request to a first server in descending order according to a priority order set by the plurality of first servers in the configuration file.

The sending module includes:

At the same time, the submodule is sent, and the domain name resolution request is sent to multiple first servers in the configuration file at the same time.

The resource obtaining module includes:

a sending submodule, configured to send the domain name resolution valid response message to the second server, so that the second server establishes a resource request connection with the source station;

The resource acquisition submodule is configured to acquire a request resource from the source station by using the second server to request a resource connection with the source station.

Among them, it also includes:

The first sending processing module is configured to stop sending the domain name resolution request to the next first server when receiving the domain name resolution valid response message returned by any of the first servers;

The second sending processing module is configured to: when receiving the domain name resolution failure message returned by the first server or the domain name resolution request timeout and no response, send the domain name resolution request to the next first server until receiving any The domain name returned by a server resolves the valid response message.

The embodiment of the present invention further provides a server, including the processing device for the domain name resolution request according to the foregoing embodiment.

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is configured to store program code for performing the following steps: receiving a domain name resolution request carrying domain name information; transmitting the domain name resolution request to at least one first server according to a preset domain name resolution mode; receiving the first The server parses the valid response message according to the domain name returned by the domain name information in the domain name resolution request; and obtains the request resource from the source station according to the domain name resolution valid response message.

The beneficial effects of the above technical solutions of the embodiments of the present invention are as follows:

In the above solution of the embodiment of the present invention, the domain name resolution request is sent to the at least one server by using the preset domain name resolution mode, which improves the success rate of the domain name resolution and the domain name resolution efficiency, and ensures that the user equipment can obtain the domain name when the server domain name is returned. The requested resources enhance the user experience.

DRAWINGS

1 is a schematic diagram of basic steps of a method for processing a domain name resolution request according to an embodiment of the present invention;

2 is a schematic structural diagram of a device for processing a domain name resolution request according to an embodiment of the present invention;

3 is a block diagram of a first specific processing flow for transmitting a domain name resolution request to at least one first server according to a preset domain name resolution mode according to a method for processing a domain name resolution request according to an embodiment of the present invention;

FIG. 4 is a second specific processing flow for sending the domain name resolution request to at least one first server according to a preset domain name resolution mode in a method for processing a domain name resolution request according to an embodiment of the present invention; block diagram;

FIG. 5 is a basic block diagram of a domain name resolution system based on a DNS proxy server according to an embodiment of the present invention.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in the following description.

The present invention is directed to the problem that the source device fails to be obtained due to a certain DNS server abnormality when the server domain name is returned in the prior art, so that the user equipment cannot obtain the requested resource, and the method for processing the domain name resolution request is provided by using the preset domain name. The parsing mode sends a domain name resolution request to at least one server, which improves the success rate of the domain name resolution and the domain name resolution efficiency, and ensures that the user equipment can obtain the requested resource when the server domain name is returned, thereby improving the user experience.

First embodiment

As shown in FIG. 1 , an embodiment of the present invention provides a method for processing a domain name resolution request, including:

Step 11: Receive a domain name resolution request carrying domain name information;

Step 12: Send the domain name resolution request to at least one first server according to a preset domain name resolution mode.

Here, the first server may be a DNS server, and of course, other servers having a domain name resolution function.

Step 13: Receive a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request.

Step 14: Acquire a request resource from the source station according to the domain name resolution valid response message.

The method for processing a domain name resolution request in the embodiment of the present invention, by using a preset domain name resolution mode, sends a domain name resolution request to at least one server, thereby improving the success rate of domain name resolution and domain name resolution efficiency, and ensuring that the user equipment can be returned when the server domain name is returned. Get the resources requested by it, improving the user experience.

Preferably, the step 12 described in the embodiment of the present invention may further include:

Step 121: According to the priority order set in the configuration file for the plurality of first servers, The domain name resolution request is sent to the first server in order from high to low.

Here, the priority order of the plurality of first servers has been set in advance in the configuration file. The principle of priority setting can be determined according to the working efficiency of a plurality of first servers. For example, the probability of an abnormality in the first server domain name resolution type, and the like.

Preferably, the step 12 in the embodiment of the present invention may further include:

Step 122: Send a domain name resolution request to multiple first servers in the configuration file at the same time.

In this step, the domain name resolution request is sent to the plurality of first servers at the same time. If only one of the plurality of first servers returns a domain name resolution valid response message, the domain name resolution is successful.

Here, when more than one of the plurality of first servers returns a domain name resolution valid response message, the first obtained domain name resolution valid response message is actually used. This domain name resolution mode improves the success rate of domain name resolution and the efficiency of domain name resolution.

Specifically, the domain name resolution valid response message in the embodiment of the present invention includes a source station IP address corresponding to the domain name information.

Preferably, the step 14 in the embodiment of the present invention may further include:

Step 141: Send the domain name resolution valid response message to the second server, so that the second server establishes a resource request connection with the source station.

Here, the second server may be an Nginx server. The domain name resolution valid response message sent to the second server includes the source station IP address corresponding to the domain name information in the domain name resolution request, the second server obtains the source station IP address, and queries the source station according to the IP address, and The source station establishes a resource request connection.

Step 142: The requesting resource is obtained from the source station by the second server and the resource request connection of the source station.

The method for processing a domain name resolution request in the embodiment of the present invention further includes:

Step 15: When receiving the domain name resolution valid response message returned by any first server, stopping sending the domain name resolution request to the next first server;

Step 16, after receiving the domain name resolution failure message or domain name solution returned by the first server When the request timeout is not responding, the domain name resolution request is sent to the next first server until receiving the domain name resolution valid response message returned by any first server.

It should be noted that step 15 and step 16 are specific processing steps after step 121 described in the embodiment of the present invention, thus improving the success rate of domain name resolution.

In the above solution, the domain name resolution request is sent to at least one server by using a preset domain name resolution mode, which improves the success rate of domain name resolution and domain name resolution efficiency, and ensures that the user equipment can obtain the request when the server domain name is returned. Resources to enhance the user experience.

Second embodiment

As shown in FIG. 2, the embodiment of the present invention further provides a processing device for processing a domain name resolution request, including:

The first receiving module 21 is configured to receive a domain name resolution request carrying domain name information;

Here, the domain name information refers to the name of a computer or group of computers on the Internet consisting of a series of names separated by dots, and is set to identify the electronic orientation of the computer during data transmission.

The sending module 22 is configured to send the domain name resolution request to the at least one first server according to the preset domain name resolution mode;

The second receiving module 23 is configured to receive a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request;

The resource obtaining module 24 is configured to obtain the requested resource from the source station according to the domain name resolution valid response message.

The sending module 22 in the embodiment of the present invention may specifically include:

Here, the priority order of the plurality of first servers is preset in the configuration file. The principle of priority setting can be determined according to the working efficiency of a plurality of first servers. For example, the probability of an abnormality in the first server domain name resolution type, and the like.

The sending module 22 in the embodiment of the present invention may further include:

It should be noted that the domain name resolution request is sent to the plurality of first servers at the same time. If only one of the plurality of first servers returns a domain name resolution valid response message, the domain name resolution is successful.

Here, when more than one of the plurality of first servers returns a domain name resolution valid response message, the first obtained domain name resolution valid response message is actually used. This domain name resolution mode improves the success rate of domain name resolution and the speed of domain name resolution.

Specifically, the domain name resolution valid response message includes a source station IP address corresponding to the domain name information.

Specifically, the resource obtaining module 24 in the embodiment of the present invention may include:

The apparatus for processing a domain name resolution request in the embodiment of the present invention may further include:

The first sending processing module 25 is configured to stop sending the domain name resolution request to the next first server when receiving the domain name resolution valid response message returned by any of the first servers;

The second sending processing module 26 is configured to: when receiving the domain name resolution failure message returned by the first server or the domain name resolution request timeout and no response, send the domain name resolution request to the next first server until receiving any The domain name returned by the first server resolves the valid response message.

It should be noted that the first sending processing module 25 and the second sending processing module 26 are specific processing modules in the priority sending submodule in the embodiment of the present invention.

The embodiment of the present invention further provides a server, including the processing device for the domain name resolution request as described in the foregoing embodiment.

Third embodiment

As shown in FIG. 3, a first specific processing flow diagram of the domain name resolution request is sent to at least one first server according to a preset domain name resolution mode according to a method for processing a domain name resolution request according to an embodiment of the present invention. The processing flow of the domain name resolution request will be specifically described below in conjunction with the figure.

In order to more clearly understand the processing flow of the domain name resolution request in the embodiment of the present invention, it should be noted that the implementation of the processing flow is based on the premise that the cache server configured by Nginx is sent by the receiving client. After the HTTP request, it is detected whether the local disk has cached the requested resource. When it is determined that the requested resource is not cached locally, a proxy server needs to be added to implement the processing process of the domain name resolution request, and finally the resource requested by the client is obtained. The specific process is as follows:

Step 301: The client sends an HTTP request to the Nginx server.

Here, the client is also called a client, and refers to a program that provides a local service to the client corresponding to the server.

Step 302: The Nginx server detects whether the local disk has cached the requested request resource, and determines that the requested resource of the request is not locally cached.

Step 303: The Nginx server sends a domain name resolution request to the DNS proxy server.

In this step, the domain name resolution request carries the domain name information.

Step 304: The DNS proxy server sequentially sends the domain name resolution request to a DNS server according to a priority order set by multiple DNS servers in the configuration file.

Step 305, the DNS server replies to the DNS proxy server or the DNS server is different. Often not responding;

Step 306: When the DNS proxy server determines that the response of the DNS reply is a valid response, step 307 is performed; otherwise, step 304 is performed.

Here, when the DNS proxy server detects that the domain name resolution request timeout is unresponsive or receives an invalid response returned by the DNS server, the process returns to step 304, and the domain name resolution request is sent to the next DNS server.

Step 307: The DNS proxy server returns a domain name resolution valid response message to the Nginx server.

Here, the domain name resolution effective response message includes an IP address corresponding to the domain name information.

Step 308, the Nginx server establishes a connection with the source station to obtain a request resource requested by the client.

Here, the Nginx server sends an HTTP request to the source station according to the obtained IP address, and the source station returns the corresponding request resource according to the HTTP request.

Step 309: The Nginx server sends the obtained request resource to the client, and determines whether to cache to the local disk.

Here, the request resource carries an indication message whether to cache the request resource to a local disk.

In the above solution of the present invention, the domain name resolution request is sent to at least one server according to the priority order set by the multiple servers in the configuration file, which improves the success rate of domain name resolution. To ensure that the user device can obtain the requested resource when the server domain name is returned, the user experience is improved.

Fourth embodiment

FIG. 4 is a block diagram of a second specific processing flow for transmitting the domain name resolution request to at least one first server according to a preset domain name resolution mode according to a method for processing a domain name resolution request according to an embodiment of the present invention. The processing flow of the domain name resolution request will be specifically described below in conjunction with the figure.

In order to more clearly understand the processing flow of the domain name resolution request in the embodiment of the present invention, it should be noted that the implementation of the processing flow is based on the fact that the cache cache server built by Nginx receives the HTTP sent by the client. After the request, check if the local disk is The requested resource is cached. When it is determined that the requested resource is not cached locally, a proxy server needs to be added to implement the processing process of the domain name resolution request, and finally the resource requested by the client is obtained. The specific process is as follows:

Step 401: The client sends an HTTP request to the Nginx server.

Step 402: The Nginx server detects whether the local disk has cached the requested request resource, and determines that the requested resource of the request is not locally cached.

Step 403: The Nginx server sends a domain name resolution request to the DNS proxy server.

Step 404: The DNS proxy server simultaneously sends the domain name resolution request to multiple DNS servers in the configuration file.

Here, the DNS server simultaneously sends the domain name resolution request to a plurality of DNS servers at one time.

Step 405, the DNS server replies to the DNS proxy server;

Here, if one of the multiple DNS servers in the configuration file returns a domain name resolution valid response message, the domain name resolution is successful.

When more than one of the plurality of DNS servers returns a domain name resolution valid response message, the first obtained domain name resolution valid response message is actually used. This domain name resolution mode improves the success rate of domain name resolution and the speed of domain name resolution.

Step 406: The DNS proxy server sends the first obtained domain name resolution effective response message to the Nginx server.

Step 407: The Nginx server establishes a connection with the source station to obtain a request resource requested by the client.

Step 408: The Nginx server sends the obtained request resource to the client, and determines Whether to cache to a local disk.

It should be noted that the processing method of the domain name resolution request in the embodiment of the present invention and the foregoing third embodiment can be implemented under the basic framework of the domain name resolution system shown in FIG. 5.

In the above solution of the present invention, the domain name resolution request is sent to multiple first services in the configuration file by using a preset domain name resolution mode, thereby improving the success rate of domain name resolution and domain name resolution efficiency, and ensuring the domain name return source of the server. When the user equipment can obtain the resources requested by it, the user experience is improved.

Embodiments of the present invention also provide a storage medium. Alternatively, in the present embodiment, the above storage medium may be set to store program code for executing the steps of the method in the first embodiment.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in the embodiment, the processor performs the steps of the method in the first embodiment according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or multiple of them Blocks or steps are made in a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

According to the foregoing technical solution provided by the embodiment of the present invention, the domain name resolution request is sent to the at least one server by using the preset domain name resolution mode, thereby improving the success rate of the domain name resolution and the domain name resolution efficiency, and ensuring that the user equipment can be obtained when the server domain name is returned to the source. The user's experience is enhanced by the resources it requests.

Claims

A method for processing a domain name resolution request includes:

Receiving a domain name resolution request carrying domain name information;

And sending, by the preset domain name resolution mode, the domain name resolution request to the at least one first server;

Receiving a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request;

And obtaining the requested resource from the source station according to the domain name resolution valid response message.
The method for processing a domain name resolution request according to claim 1, wherein the step of transmitting the domain name resolution request to the at least one first server according to the preset domain name resolution mode comprises:

The domain name resolution request is sent to a first server in descending order of the first server settings in the configuration file.
The method for processing a domain name resolution request according to claim 1, wherein the step of transmitting the domain name resolution request to the at least one first server according to the preset domain name resolution mode comprises:

At the same time, the domain name resolution request is sent to multiple first servers in the configuration file.
The method for processing a domain name resolution request according to claim 1, wherein the domain name resolution effective response message includes a source station IP address corresponding to the domain name information.
The method for processing a domain name resolution request according to claim 4, wherein the step of obtaining the requested resource from the source station according to the domain name resolution valid response message comprises:

Sending the domain name resolution valid response message to the second server, so that the second server establishes a resource request connection with the source station;

The request resource is obtained from the source station by the second server and the resource request connection of the source station.
The method for processing a domain name resolution request according to claim 2, further comprising:

Stop receiving the domain name resolution request to the next first server when receiving the domain name resolution valid response message returned by any of the first servers; or

After receiving the domain name resolution failure message returned by the first server or the domain name resolution request timeout is unresponsive, the domain name resolution request is sent to the next first server until receiving a valid domain name resolution response returned by any first server. As of the news.
A processing device for requesting a domain name resolution, comprising:

The first receiving module is configured to receive a domain name resolution request carrying domain name information;

The sending module is configured to send the domain name resolution request to the at least one first server according to the preset domain name resolution mode;

a second receiving module, configured to receive a domain name resolution valid response message returned by the first server according to the domain name information in the domain name resolution request;

The resource obtaining module is configured to obtain a request resource from the source station according to the domain name resolution valid response message.
The processing device for the domain name resolution request according to claim 7, wherein the sending module comprises:

The priority sending submodule is configured to send the domain name resolution request to a first server in descending order according to a priority order set by the plurality of first servers in the configuration file.
The processing device for the domain name resolution request according to claim 7, wherein the sending module comprises:

At the same time, the submodule is sent, and the domain name resolution request is sent to multiple first servers in the configuration file at the same time.
The apparatus for processing a domain name resolution request according to claim 7, wherein the domain name resolution effective response message includes a source station IP address corresponding to the domain name information.
The processing device for the domain name resolution request according to claim 10, wherein the resource acquisition module comprises:

a sending submodule, configured to send the domain name resolution valid response message to the second server, so that the second server establishes a resource request connection with the source station;

The resource acquisition submodule is configured to acquire a request resource from the source station by using the second server to request a resource connection with the source station.
The apparatus for processing a domain name resolution request according to claim 8, further comprising:

The first sending processing module is configured to stop sending the domain name resolution request to the next first server when receiving the domain name resolution valid response message returned by any of the first servers;

The second sending processing module is configured to: when receiving the domain name resolution failure message returned by the first server or the domain name resolution request timeout and no response, send the domain name resolution request to the next first server until receiving any The domain name returned by a server resolves the valid response message.
A server comprising the processing device for the domain name resolution request according to any one of claims 7-12.