CN110602266B - Domain name resolution method and system - Google Patents
Domain name resolution method and system Download PDFInfo
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- CN110602266B CN110602266B CN201910838279.3A CN201910838279A CN110602266B CN 110602266 B CN110602266 B CN 110602266B CN 201910838279 A CN201910838279 A CN 201910838279A CN 110602266 B CN110602266 B CN 110602266B
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- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
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- H04L61/2503—Translation of Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
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Abstract
The embodiment of the invention provides a domain name resolution method and a domain name resolution system, wherein the method is applied to a video network and comprises the following steps: the method comprises the steps that a video network terminal sends a domain name resolution request to a video network domain name server, wherein the domain name resolution request carries a domain name to be resolved; the video network domain name server resolves the domain name resolution request to obtain a domain name to be resolved; the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address and sends the IP address to the video network terminal; and the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number. Therefore, according to the technical scheme provided by the embodiment of the invention, after one video network terminal acquires the domain name of the other video network terminal, the domain name of the other video network terminal can be converted into the video network number, so that the two video network terminals can establish communication connection through the video network number obtained by analysis.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a domain name resolution method and a domain name resolution system.
Background
The video networking is an important milestone for network development, is a higher-level form of the Internet, is a real-time network, can realize the real-time transmission of full-network high-definition videos which cannot be realized by the existing Internet, and pushes a plurality of Internet applications to high-definition video, and high definition faces each other. Finally, world no-distance is realized, and the distance between people in the world is only the distance of one screen.
However, the video network transmission is based on the video network number for communication connection, namely, each video network terminal based on the video network transmission data has one video network number. In practical application, if one video network terminal can only acquire the domain name of another video network terminal and cannot acquire the video network number of another video network terminal, the two video network terminals cannot realize communication connection through the video network. Therefore, how to accurately resolve the domain name of the terminal of the video networking into the video networking number is a problem to be solved urgently.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a domain name resolution method and a corresponding domain name resolution system that overcome or at least partially solve the above problems.
In a first aspect, an embodiment of the present invention discloses a domain name resolution method, which is applied to a video network, where the video network includes: the method comprises the following steps:
the video network terminal sends a domain name resolution request to the video network domain name server, wherein the domain name resolution request carries a domain name to be resolved;
the video network domain name server analyzes the domain name analysis request to obtain the domain name to be analyzed;
the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address and sends the IP address to the video network terminal;
and the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number.
Optionally, the converting, by the domain name server, the video networking number corresponding to the domain name to be resolved into an IP address includes:
the video network domain name server determines the video network number corresponding to the domain name to be analyzed according to the corresponding relation between the domain name and the video network number which are stored in advance;
and the video networking domain name server converts the video networking number into an IP address.
Optionally, the video network number is a decimal number string with a first preset digit, the IP address is a binary number string with a second preset digit, and the second preset digit is greater than the first preset digit;
the video networking domain name server converts the video networking number into an IP address, and the method comprises the following steps:
the video network domain name server converts the decimal video network number with a first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit;
the video networking domain name server carries out left side 0 complementing on the binary number string obtained by conversion to obtain a target binary number string, wherein the digit of the target binary number string is a second preset digit;
and the video networking domain name server takes the target binary digit string as an IP address.
Optionally, the converting, by the video network terminal, the IP address into a corresponding video network number includes:
the video network terminal converts the binary IP address of the second preset digit into a decimal digit string;
the video network terminal judges whether the digit number of the converted decimal digit string is less than a first preset digit number;
if the digit of the converted decimal digit string is less than the first preset digit, the video network terminal performs left-side 0 complementing on the converted decimal digit string to obtain a target decimal digit string, wherein the digit of the target decimal digit string is the first preset digit;
and the video network terminal determines the target decimal number string as a video network number corresponding to the IP address.
Optionally, the first preset number of bits is 20, and the second preset number of bits is 128.
In a second aspect, an embodiment of the present invention provides a domain name resolution system, where the system is applied in a video network, and the video network includes: the system comprises a video network terminal and a video network domain name server, and comprises:
the video network terminal is used for sending a domain name resolution request to the video network domain name server, and the domain name resolution request carries a domain name to be resolved;
the video network domain name server is used for analyzing the domain name analysis request to obtain the domain name to be analyzed;
the video network domain name server is also used for converting a target video network number corresponding to the domain name to be analyzed into an IP address and sending the IP address to the video network terminal;
and the video network terminal is also used for converting the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number.
Optionally, the domain name server of the internet of view is specifically configured to:
the video network domain name server determines a target video network number corresponding to the domain name to be analyzed according to a pre-stored corresponding relation between the domain name and the video network number;
and the video network domain name server converts the target video network number into an IP address.
Optionally, the video network number is a decimal number string with a first preset digit, the IP address is a binary number string with a second preset digit, and the second preset digit is greater than the first preset digit;
the video networking domain name server is specifically configured to:
the video network domain name server converts the decimal video network number with a first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit;
the video networking domain name server carries out left-side 0 complementing on the binary number string obtained by conversion to obtain a target binary number string, wherein the digit of the target binary number string is a second preset digit;
and the video networking domain name server takes the target binary character string as an IP address.
Optionally, the video networking terminal is specifically configured to:
converting the binary IP address of the second preset digit into a decimal digit string;
judging whether the digit number of the converted decimal digit string is less than a first preset digit number or not;
if the digit of the decimal digit string obtained by conversion is smaller than the first preset digit, performing left side 0 complementing on the decimal digit string obtained by conversion to obtain a target decimal digit string, wherein the digit of the target decimal digit string is the first preset digit;
and determining the target decimal number string as the video networking number corresponding to the IP address.
Optionally, the first preset number of bits is 20, and the second preset number of bits is 128.
The embodiment of the invention has the following advantages:
the embodiment of the invention applies the characteristics of the video network, and the video network terminal sends a domain name resolution request to a video network domain name server, wherein the domain name resolution request carries a domain name to be resolved; the video network domain name server resolves the domain name resolution request to obtain a domain name to be resolved; the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address and sends the IP address to the video network terminal; and the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number. Therefore, according to the technical scheme provided by the embodiment of the invention, after one video network terminal acquires the domain name of the other video network terminal, the domain name of the other video network terminal can be converted into the video network number, that is, the domain name of the other video network terminal can be accurately analyzed into the video network number, so that the two video network terminals can establish communication connection through the video network number obtained by analysis.
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FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a flow chart of the steps of a domain name resolution method of the present invention;
FIG. 6 is a flowchart of step 530 in FIG. 5;
FIG. 7 is a flowchart of step 540 of FIG. 5;
fig. 8 is a block diagram of a domain name resolution system of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the above-mentioned characteristics of the video network, one of the core concepts of the embodiments of the present invention is presented.
Referring to fig. 5, a flowchart illustrating steps of an embodiment of a domain name resolution method of the present invention is shown, which may be applied in a video network comprising: the method comprises the following steps:
s510, the terminal of the video network sends a domain name resolution request to the domain name server of the video network.
And the domain name resolution request carries the domain name to be resolved.
In this step, when the terminal of the video network wants to establish communication connection with another terminal of the video network, the domain name of the other terminal of the video network can be acquired, and the domain name of the other terminal of the video network is the domain name to be resolved. And sending a domain name resolution request carrying the domain name to be resolved to a domain name server of the video network.
S520, the video network domain name server resolves the domain name resolving request to obtain the domain name to be resolved.
After receiving the domain name resolution request, the video network domain name server resolves the domain name resolution request to obtain the domain name to be resolved.
S530, the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address, and sends the IP address to the video network terminal.
In an embodiment, the step of converting the view network number corresponding to the domain name to be resolved into the IP address by the view network domain name server may include the following steps, as shown in fig. 6, S531 and S532 respectively:
and S531, the video network domain name server determines the video network number corresponding to the domain name to be analyzed according to the pre-stored corresponding relation between the domain name and the video network number.
Specifically, the domain name server of the video network stores the corresponding relationship between the domain name and the video network number in advance, that is, each domain name corresponds to one video network number. Therefore, after the domain name server obtains the resolution domain name, the target domain name number corresponding to the domain name to be resolved can be determined according to the corresponding relation between the domain name and the domain name number.
S532, the video network domain name server converts the video network number into an IP address.
In one embodiment, the video network number is a decimal string of a first predetermined number of digits and the IP address is a binary string of a second predetermined number of digits; the first predetermined number of bits may be 20, and the second predetermined number of bits may be 128.
At this time, step S532 may include the following three steps, which are step a to step c, respectively:
step a, the video network domain name server converts the decimal video network number with the first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit.
Specifically, the video network number may be a 20-digit decimal number string, and the video network domain name server may convert the decimal number string into a binary number string, where the digit of the binary number string obtained by conversion is less than a first preset digit, that is, less than 128 digits.
And b, the video network domain name server carries out left-side 0 complementing on the binary digit string obtained by conversion to obtain a target binary digit string, wherein the digit of the target binary digit string is a second preset digit.
Because the digit of the binary digit string obtained by conversion is less than the second preset digit (128), the video network domain name server can perform left-side 0 complementing on the binary digit string obtained by conversion until the digit of the binary digit string obtained by conversion reaches the second preset digit (128), and a target binary digit string is obtained.
For example, the video networking number is: 001000010006002000000,
the resulting binary string is converted to:
000101100011010001100110000101010101111101010110001101000000
(60 bits total), therefore, 68 0's may be complemented on the left side of the translated binary string, such that the number of bits of the translated binary string reaches the second predetermined number of bits (128).
And c, the video network domain name server takes the target binary character string as the IP address.
S540, the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number.
Specifically, step S540 may include the following steps, as shown in fig. 7, respectively:
s541, the video network terminal converts the binary IP address of the second preset digit into a decimal digit string.
Specifically, after the video network terminal obtains the IP address, the binary IP address can be converted into a decimal number string.
S542, the video network terminal judges whether the digit number of the converted decimal digit string is less than a first preset digit number, if so, the step S543 is executed; if not, S544 is performed.
Since the number of digits of the video network number is generally 20, after the decimal number string is obtained, it is possible to determine whether the number of digits of the decimal number string is less than a first preset number of digits (20).
And S543, the video networking terminal performs left side 0 complementing on the converted decimal number string to obtain a target decimal number string, and the digit of the target decimal number string is a first preset digit.
S544, the video network terminal determines the target decimal number string as the video network number corresponding to the IP address.
Therefore, the video network terminal can obtain the video network number corresponding to the domain name, and the video network terminal can establish communication connection with the video network terminal with the video network number.
The embodiment of the invention applies the characteristics of the video network, and the video network terminal sends a domain name resolution request to a video network domain name server, wherein the domain name resolution request carries a domain name to be resolved; the video network domain name server resolves the domain name resolution request to obtain a domain name to be resolved; the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address and sends the IP address to the video network terminal; and the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number. Therefore, according to the technical scheme provided by the embodiment of the invention, after one video network terminal acquires the domain name of the other video network terminal, the domain name of the other video network terminal can be converted into the video network number, that is, the domain name of the other video network terminal can be accurately analyzed into the video network number, so that the two video network terminals can establish communication connection through the video network number obtained by analysis.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 8, a block diagram of a domain name resolution system according to an embodiment of the present invention is shown, where the system may be applied in a video network, and specifically may include:
the video networking terminal 810 is configured to send a domain name resolution request to the video networking domain name server, where the domain name resolution request carries a domain name to be resolved;
a domain name server 820 for resolving the domain name resolution request to obtain the domain name to be resolved;
the domain name server 820 is further configured to convert a target domain name number corresponding to the domain name to be resolved into an IP address, and send the IP address to the domain name server;
the video network terminal 810 is further configured to convert the IP address into a corresponding video network number, so as to communicate with the video network terminal having the video network number.
Optionally, the domain name server of the internet of view is specifically configured to:
the video network domain name server determines a target video network number corresponding to the domain name to be analyzed according to a pre-stored corresponding relation between the domain name and the video network number;
and the video network domain name server converts the target video network number into an IP address.
Optionally, the video network number is a decimal number string with a first preset digit, the IP address is a binary number string with a second preset digit, and the second preset digit is greater than the first preset digit;
the video networking domain name server is specifically configured to:
the video network domain name server converts the decimal video network number with a first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit;
the video networking domain name server carries out left-side 0 complementing on the binary number string obtained by conversion to obtain a target binary number string, wherein the digit of the target binary number string is a second preset digit;
and the video networking domain name server takes the target binary character string as an IP address.
Optionally, the video networking terminal is specifically configured to:
converting the binary IP address of the second preset digit into a decimal digit string;
judging whether the digit number of the converted decimal digit string is less than a first preset digit number or not;
if the digit of the decimal digit string obtained by conversion is smaller than the first preset digit, performing left side 0 complementing on the decimal digit string obtained by conversion to obtain a target decimal digit string, wherein the digit of the target decimal digit string is the first preset digit;
and determining the target decimal number string as the video networking number corresponding to the IP address.
Optionally, the first preset number of bits is 20, and the second preset number of bits is 128.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The domain name resolution method and the domain name resolution device provided by the invention are described in detail, specific examples are applied in the text to explain the principle and the implementation mode of the invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A domain name resolution method is applied to a video network, and the video network comprises the following steps: the method comprises the following steps:
the video network terminal sends a domain name resolution request to the video network domain name server, wherein the domain name resolution request carries a domain name to be resolved;
the video network domain name server analyzes the domain name analysis request to obtain the domain name to be analyzed;
the video network domain name server converts the video network number corresponding to the domain name to be analyzed into an IP address and sends the IP address to the video network terminal;
and the video network terminal converts the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number.
2. The method according to claim 1, wherein the converting, by the domain name server, the view network number corresponding to the domain name to be resolved into the IP address comprises:
the video network domain name server determines the video network number corresponding to the domain name to be analyzed according to the corresponding relation between the domain name and the video network number which are stored in advance;
and the video networking domain name server converts the video networking number into an IP address.
3. The method of claim 2, wherein the video network number is a string of decimal digits of a first predetermined number of digits, the IP address is a string of binary digits of a second predetermined number of digits, and the second predetermined number of digits is greater than the first predetermined number of digits;
the video networking domain name server converts the video networking number into an IP address, and the method comprises the following steps:
the video network domain name server converts the decimal video network number with a first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit;
the video networking domain name server carries out left side 0 complementing on the binary number string obtained by conversion to obtain a target binary number string, wherein the digit of the target binary number string is a second preset digit;
and the video networking domain name server takes the target binary digit string as an IP address.
4. The method of claim 3, wherein the video network terminal translating the IP address to a corresponding video network number comprises:
the video network terminal converts the binary IP address of the second preset digit into a decimal digit string;
the video network terminal judges whether the digit number of the converted decimal digit string is less than a first preset digit number;
if the digit of the converted decimal digit string is less than the first preset digit, the video network terminal performs left-side 0 complementing on the converted decimal digit string to obtain a target decimal digit string, wherein the digit of the target decimal digit string is the first preset digit;
and the video network terminal determines the target decimal number string as a video network number corresponding to the IP address.
5. The method according to any one of claims 3 to 4, wherein the first predetermined number of bits is 20 and the second predetermined number of bits is 128.
6. A domain name resolution system is applied to a video network, and the video network comprises: the system comprises a video network terminal and a video network domain name server, and comprises:
the video network terminal is used for sending a domain name resolution request to the video network domain name server, and the domain name resolution request carries a domain name to be resolved;
the video network domain name server is used for analyzing the domain name analysis request to obtain the domain name to be analyzed;
the video network domain name server is also used for converting a target video network number corresponding to the domain name to be analyzed into an IP address and sending the IP address to the video network terminal;
and the video network terminal is also used for converting the IP address into a corresponding video network number so as to communicate with the video network terminal with the video network number.
7. The system of claim 6, wherein the domain name server is specifically configured to:
the video network domain name server determines a target video network number corresponding to the domain name to be analyzed according to a pre-stored corresponding relation between the domain name and the video network number;
and the video network domain name server converts the target video network number into an IP address.
8. The system of claim 7, wherein the video network number is a string of decimal digits of a first predetermined number of digits, the IP address is a string of binary digits of a second predetermined number of digits, and the second predetermined number of digits is greater than the first predetermined number of digits;
the video networking domain name server is specifically configured to:
the video network domain name server converts the decimal video network number with a first preset digit into a binary digit string, wherein the digit of the binary digit string obtained by conversion is less than the second preset digit;
the video networking domain name server carries out left-side 0 complementing on the binary number string obtained by conversion to obtain a target binary number string, wherein the digit of the target binary number string is a second preset digit;
and the video networking domain name server takes the target binary character string as an IP address.
9. The system of claim 7, wherein the video networking terminal is specifically configured to:
converting the binary IP address of the second preset digit into a decimal digit string;
judging whether the digit number of the converted decimal digit string is less than a first preset digit number or not;
if the digit of the decimal digit string obtained by conversion is smaller than the first preset digit, performing left side 0 complementing on the decimal digit string obtained by conversion to obtain a target decimal digit string, wherein the digit of the target decimal digit string is the first preset digit;
and determining the target decimal number string as the video networking number corresponding to the IP address.
10. The system according to any one of claims 8 to 9, wherein the first predetermined number of bits is 20 and the second predetermined number of bits is 128.
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| CN111510514B (en) * | 2020-03-13 | 2022-04-05 | 视联动力信息技术股份有限公司 | Domain name processing method and device, electronic equipment and storage medium |
| CN111556374B (en) * | 2020-03-18 | 2023-09-05 | 视联动力信息技术股份有限公司 | Method and device for accessing application server and video networking system |
| CN111600969B (en) * | 2020-03-31 | 2023-05-12 | 视联动力信息技术股份有限公司 | Domain name addressing method, system, domain name server, electronic equipment and storage medium |
| CN112118226A (en) * | 2020-08-13 | 2020-12-22 | 视联动力信息技术股份有限公司 | Method and device for inquiring video networking number, terminal equipment and storage medium |
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| US10083291B2 (en) * | 2015-02-25 | 2018-09-25 | Verisign, Inc. | Automating internet of things security provisioning |
| CN108023910B (en) * | 2016-11-01 | 2019-03-12 | 视联动力信息技术股份有限公司 | A kind of terminal monitoring method and system based on view networking |
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