CN111510514B - Domain name processing method and device, electronic equipment and storage medium - Google Patents
Domain name processing method and device, electronic equipment and storage medium Download PDFInfo
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- CN111510514B CN111510514B CN202010179123.1A CN202010179123A CN111510514B CN 111510514 B CN111510514 B CN 111510514B CN 202010179123 A CN202010179123 A CN 202010179123A CN 111510514 B CN111510514 B CN 111510514B
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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
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
Abstract
The invention provides a domain name processing method and device, electronic equipment and a storage medium. The method comprises the following steps: when the domain name server accesses the network, the core server broadcasts a network access instruction and receives a response network access instruction sent by the domain name server, wherein the response network access instruction carries indication information indicating that the network access terminal is the domain name server; the core server creates a blank domain name list corresponding to the domain name server based on the indication information and sends a network access success instruction to the domain name server; after receiving a domain name synchronization instruction sent by a domain name server, the core server updates a domain name list corresponding to the domain name server according to a domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized. According to the invention, the domain name server is deployed in each local area network of view, the domain name server can effectively manage the domain name in the local area network of view, and the core server can obtain the global domain name state through the distributed domain name servers.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a domain name processing method and apparatus, an electronic device, and a storage medium.
Background
The domain name is used to identify the electronic position of the computer during data transmission, and is a character-type address corresponding to a digital IP (Internet Protocol) address on a network, which is an address of a group of servers for easy memory and communication.
In the internet, Domain names are managed by a DNS (Domain Name System). In the DNS architecture, the upper and lower level network structures are interconnected and intercommunicated, and the management of the domain name is stateless, and the state of the domain name is known only when a request is initiated.
Since the network structure of the video network is different from that of the internet, the DNS architecture in the internet cannot be applied to the video network. Therefore, in the video network, the domain name cannot be managed effectively, and the state of the domain name cannot be maintained.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a domain name processing method, apparatus, electronic device, and storage medium that overcome or at least partially solve the above problems.
In a first aspect, the embodiment of the invention discloses a domain name processing method, which is applied to a video network, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with a core server; the method comprises the following steps:
when the domain name server accesses the network, the core server broadcasts a network access instruction and receives a response network access instruction sent by the domain name server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the core server creates a blank domain name list corresponding to the domain name server based on the indication information and sends a network access success instruction to the domain name server;
after receiving a domain name synchronization instruction sent by the domain name server, the core server updates a domain name list corresponding to the domain name server according to a domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized.
Optionally, the domain name list is used to store domain names in the domain name server in an online state; updating a domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized, wherein the updating comprises the following steps: the core server deletes the domain name to be synchronized from the domain name list when the domain name list comprises the domain name to be synchronized and the state of the domain name to be synchronized is offline; and when the domain name list does not contain the domain name to be synchronized and the state of the domain name to be synchronized is online, the core server adds the domain name to be synchronized to the domain name list.
Optionally, the method further comprises: the core server sends heartbeat detection packets to the domain name server according to a preset heartbeat time interval; and if the core server does not receive the heartbeat response packet returned by the domain name server within the preset time, deleting the domain name list corresponding to the domain name server.
In a second aspect, the embodiment of the invention discloses a domain name processing method, which is applied to a video network, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with a core server; the method comprises the following steps:
after receiving a network access instruction broadcasted by the core server, the domain name server sends a response network access instruction to the core server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
after receiving a successful network access instruction sent by the core server, the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one, generates a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized, and sends the domain name synchronization instruction to the core server;
when the domain name server judges that the domain name needs to be synchronized, the domain name server determines the domain name to be synchronized, generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized, and sends the domain name synchronization instruction to the core server.
Optionally, when the domain name server determines that a domain name needs to be synchronized, before determining the domain name to be synchronized, the method further includes: when the domain name server detects that a preset full synchronization time interval is reached, judging that a domain name needs to be synchronized; the determining the domain name to be synchronized and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized comprise: and the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one and generates a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized.
Optionally, when the domain name server determines that a domain name needs to be synchronized, before determining the domain name to be synchronized, the method further includes: the domain name server detects whether the state of the registered domain name is changed one by one when detecting that a preset increment synchronization time interval is reached, and judges that the domain name needs to be synchronized when detecting that the state of the registered domain name is changed; the determining the domain name to be synchronized and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized comprise: the domain name server takes the domain name with changed state as the domain name to be synchronized, acquires the state of the domain name to be synchronized, and generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized.
In a third aspect, the embodiment of the invention discloses a domain name processing device, which is applied to a core server in a video network, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with the core server; the device comprises:
the network access module is used for broadcasting a network access instruction when the domain name server accesses the network and receiving a response network access instruction sent by the domain name server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the creating module is used for creating a blank domain name list corresponding to the domain name server based on the indication information and sending a network access success instruction to the domain name server;
and the updating module is used for updating the domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronizing instruction and the state of the domain name to be synchronized after receiving the domain name synchronizing instruction sent by the domain name server.
Optionally, the domain name list is used to store domain names in the domain name server in an online state; the update module includes: a domain name deleting unit, configured to delete the domain name to be synchronized from the domain name list when the domain name list includes the domain name to be synchronized and the state of the domain name to be synchronized is offline; and the domain name adding unit is used for adding the domain name to be synchronized into the domain name list when the domain name list does not contain the domain name to be synchronized and the state of the domain name to be synchronized is online.
Optionally, the apparatus further comprises: the heartbeat detection module is used for sending heartbeat detection packets to the domain name server according to a preset heartbeat time interval; and the list deleting module is used for deleting the domain name list corresponding to the domain name server if the heartbeat response packet returned by the domain name server is not received within the preset time.
In a fourth aspect, the embodiment of the invention discloses a domain name processing device, which is applied to a domain name server in a video network, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with one domain name server, and each domain name server is in communication connection with a core server; the device comprises:
the sending module is used for sending a response network access instruction to the core server after receiving the network access instruction broadcasted by the core server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the first synchronization module is used for taking the registered domain names as domain names to be synchronized after receiving a network access success instruction sent by the core server, acquiring the states of the domain names to be synchronized one by one, generating a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized, and sending the domain name synchronization instruction to the core server;
and the second synchronization module is used for determining the domain name to be synchronized when the domain name needs to be synchronized, generating a domain name synchronization instruction carrying the state of the domain name to be synchronized and the state of the domain name to be synchronized, and sending the domain name synchronization instruction to the core server.
Optionally, the apparatus further comprises: the first judgment module is used for judging that the domain name needs to be synchronized when the preset full synchronization time interval is detected. The second synchronization module includes: and the first generating unit is used for taking the registered domain names as domain names to be synchronized, acquiring the states of the domain names to be synchronized one by one, and generating a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized.
Optionally, the apparatus further comprises: and the second judging module is used for detecting whether the state of the registered domain name is changed one by one when detecting that the preset increment synchronization time interval is reached, and judging that the domain name needs to be synchronized when detecting that the state of the registered domain name is changed. The second synchronization module includes: and the second generation unit is used for taking the domain name with the changed state as a domain name to be synchronized, acquiring the state of the domain name to be synchronized and generating a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized.
In a fifth aspect, an embodiment of the present invention discloses an electronic device, including: one or more processors; and one or more machine-readable media having instructions stored thereon; the instructions, when executed by the one or more processors, cause the processors to perform a domain name processing method as any one of above performed by a core server.
In a sixth aspect, an embodiment of the present invention discloses an electronic device, including: one or more processors; and one or more machine-readable media having instructions stored thereon; the instructions, when executed by the one or more processors, cause the processors to perform a domain name processing method as any one of above performed by a domain name server.
In a seventh aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the domain name processing method executed by a core server as in any one of the above.
In an eighth aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the domain name processing method performed by a domain name server as in any one of the above.
In the embodiment of the invention, a domain name processing method applied to a video network is provided, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with a core server. When the domain name server accesses the network, the core server broadcasts a network access instruction and receives a response network access instruction sent by the domain name server, wherein the response network access instruction carries indication information indicating that the network access terminal is the domain name server; the core server creates a blank domain name list corresponding to the domain name server based on the indication information and sends a network access success instruction to the domain name server; after receiving a domain name synchronization instruction sent by the domain name server, the core server updates a domain name list corresponding to the domain name server according to a domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized. Therefore, in the embodiment of the invention, the domain name server is deployed in each local area network of view, and the domain name server can effectively manage the domain name in the local area network of view in which the domain name server is located; and the core server can maintain the domain name state in the corresponding domain name server through the domain name list, and obtain the global domain name state through the distributed domain name server.
Drawings
Fig. 1 is a flowchart illustrating steps of a domain name processing method according to a first embodiment of the present invention.
Fig. 2 is a flowchart illustrating steps of a domain name processing method according to a second embodiment of the present invention.
Fig. 3 is a flowchart of steps of a domain name processing method according to a third embodiment of the present invention.
Fig. 4 is a flowchart illustrating steps of a domain name processing method according to a fourth embodiment of the present invention.
Fig. 5 is a schematic diagram of a full-scale synchronization process according to a fifth embodiment of the present invention.
Fig. 6 is a block diagram of a domain name processing apparatus according to a sixth embodiment of the present invention.
Fig. 7 is a block diagram of a domain name processing apparatus according to a seventh embodiment 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 domain name processing method provided by the embodiment of the invention is applied to the video network. Different from interconnection and intercommunication of upper and lower level network structures of an Internet DNS architecture, in order to improve network security in the video networking, all local video networking in the video networking are mutually isolated, abstract positioning is carried out through video networking instructions, and the network node relation is unknown.
In order to maintain domain names in each local area network, the embodiment of the invention deploys a domain name server in each local area network, each domain name server is used for managing the domain name in the local area network where the domain name server is located, and domain name registration and resolution can be provided for Hyper Text Transfer Protocol (HTTP) service in the local area network. The domain name server may be hardware or software, for example, a monitoring access service system server may be used as the domain name server. The core server is a central device of the video network and is used for forwarding video network instructions, establishing video multicast addresses, allocating video streams and the like. One side of each domain name server in the video network is in communication connection with the core server after being accessed, and the other side of each domain name server is in IP connection with at least one website server in the video network. One domain name in the domain name servers corresponds to at least one website server.
Next, a domain name processing method in the embodiment of the present invention is described in detail. It should be noted that, in the embodiment of the present invention, the interaction process between each domain name server and the core server is basically the same, and the embodiment of the present invention takes the interaction process between one domain name server and the core server as an example for description.
Example one
Referring to fig. 1, a flowchart illustrating steps of a domain name processing method according to a first embodiment of the present invention is shown. The domain name processing method of the embodiment of the invention can be applied to a core server.
The domain name processing method of the embodiment of the invention can comprise the following steps:
A terminal used in the video network needs to perform a network access operation first. The terminal refers to a device in the video network, and includes a hardware device which can be used for audio and video scheduling and software for providing services, and also refers to hardware where the software is located, and the like. Each domain name server can be used as a terminal to be accessed into the video network. When the domain name server accesses the network, the core server broadcasts a network access instruction. After receiving the network access instruction, the domain name server sends a response network access instruction to the core server.
Because the domain name server belongs to a special terminal and the core server needs to maintain the domain name in the domain name server, the response network access instruction sent by the domain name server needs to carry indication information, and the indication information is used for indicating that the network access terminal is the domain name server.
And 102, the core server creates a blank domain name list corresponding to the domain name server based on the indication information, and sends a network access success instruction to the domain name server.
And after receiving the response network access instruction sent by the domain name server, the core server analyzes the response network access instruction to obtain the indication information carried in the response network access instruction. Based on the indication information, the core server can know that the network access terminal is a domain name server and needs to maintain the domain name of the domain name server, so that the core server can create a blank domain name list corresponding to the domain name server, and the domain name list can be used for storing the domain name maintained in the domain name server. The core server also sends a network access success instruction to the domain name server so as to inform the domain name server of the successful network access.
After the domain name server successfully accesses the network, a domain name synchronization instruction carrying the state of the domain name to be synchronized and the state of the domain name to be synchronized is generated according to the actual situation of the domain name maintained by the domain name server, and the domain name synchronization instruction is sent to the core server. After receiving the domain name synchronization instruction, the core server updates the domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized, so that the core server and the domain name server can synchronously maintain the domain name in the domain name server.
In the embodiment of the invention, a domain name server is deployed in each local area network of vision, and the domain name in the local area network of vision in which the domain name server is located can be effectively managed through the domain name server; and the core server can maintain the domain name state in the corresponding domain name server through the domain name list, and obtain the global domain name state through the distributed domain name server.
Example two
Referring to fig. 2, a flowchart illustrating steps of a domain name processing method according to a second embodiment of the present invention is shown. The domain name processing method of the embodiment of the invention can be applied to a core server.
The domain name processing method of the embodiment of the invention can comprise the following steps:
Step 201 and step 202 are the network entry process of the domain name server. In the process of accessing the network by the domain name server, the core server needs to be able to identify that the network access terminal is the domain name server.
The network accessing process of the general video network terminal may include:
(1) the core server broadcasts 8a01 a network entry command → terminal (virtual terminal).
(2) The core server ← terminal (virtual terminal) transmits 8a03 response to the instruction to enter network.
(3) The core server sends 8a11 network entry success command → terminal (virtual terminal).
The terminal (virtual terminal) in the process refers to a common video network terminal in the video network. Such as an integrated device for audio and video input and output, such as a set-top box.
The video networking process of the domain name server can comprise the following steps:
(1) the core server broadcasts 8a01 a network entry command → terminal (virtual terminal).
(2) The core ← terminal (virtual terminal) sends 8a05 a response to the instruction to enter the network.
(3) The core server sends 8a13 network entry success command → terminal (virtual terminal).
The terminal (virtual terminal) in this process is referred to as a domain name server.
The terminals accessing the video network need to have corresponding terminal numbers. The terminal number is generated by the core server, and is added to the domain name server by an operator after being obtained from the core server. After the domain name server obtains the terminal number, a notification instruction is sent to the core server, and the notification instruction is used for indicating that the terminal wants to access the network and requests to start the network access process. Since the terminal does not know the location of the core server, the destination address of the instruction is a virtual address, the switching device in the video network knows that the virtual address is the core server, the switching device forwards the instruction to the core server layer by layer, and the core server starts to broadcast 8a01 network-accessing instruction after receiving the instruction. In the above process, the switching device only knows the position of the switching device in the previous layer, and keeps secret layer by layer, so that only the core server knows the forwarding path, and thus knows the position of the domain name server (the position refers to the actual routing address of the domain name server, and the domain name server can be found through 4 ports of the switch a and 15 ports of the switch B, for example), so that the devices in the internet of view can keep anonymity, and better security than the internet domain name service is provided.
After receiving the network access command, the domain name server returns to 8a05 to respond to the network access command. One difference between the 8a05 response network access command and the 8a03 response network access command is that the 8a05 response network access command carries indication information indicating that the network access terminal is a domain name server, so that the core server can recognize that the response network access command is from the domain name server, but not from a common video network terminal. Of course, the 8a05 response network entry command may further include information such as a terminal number of the domain name server (the terminal number may be a transcoded terminal number).
After the core server receives the response network access instruction of 8a05, based on the indication information therein, the network access terminal may be marked as a domain name server, and a blank domain name list corresponding to the domain name server is created, and the terminal number of the domain name server is associated with the domain name list. The core server sends 8a13 network access success instruction to the domain name server, and the domain name server network access succeeds.
And the domain name server obtains the success of network access after receiving the network access success instruction sent by the core server. The domain name server can send a domain name synchronization instruction to the core server according to the actual situation of the domain name maintained by the domain name server. The domain name synchronization instruction carries the domain name to be synchronized and the state of the domain name to be synchronized, and certainly can also carry the terminal number of the domain name server. Wherein the status may include online, offline.
The core server searches a domain name list which is stored by the core server and is associated with the terminal number according to the terminal number of the domain name server, and the searched domain name list is a terminal list corresponding to the domain name server which sends the domain name synchronization instruction. And the core server updates a domain name list corresponding to the domain name server stored by the core server according to the domain name to be synchronized and the state of the domain name to be synchronized.
In one implementation, the domain name list may be used to store domain names that are online in the corresponding domain name server. Therefore, according to the domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized, the process of updating the domain name list corresponding to the domain name server may include: the core server deletes the domain name to be synchronized from the domain name list when the domain name list comprises the domain name to be synchronized and the state of the domain name to be synchronized is offline; and when the domain name list does not contain the domain name to be synchronized and the state of the domain name to be synchronized is online, the core server adds the domain name to be synchronized to the domain name list. Therefore, it can be known from the domain name list that the domain names included in the domain name list are online and the domain names not included in the domain name list are offline, and then whether the corresponding website server can be accessed through the domain names is determined.
And 204, the core server sends a heartbeat detection packet to the domain name server according to a preset heartbeat time interval.
In the embodiment of the invention, a heartbeat mechanism can be adopted between the core server and the domain name server. The core server sends a heartbeat detection packet to the domain name server at intervals of a preset heartbeat time interval. If the domain name server is on line, the heartbeat detection packet is received, and a heartbeat response packet is returned to the core server; if the domain name server is off-line, the heartbeat detection packet cannot be received, and a heartbeat response packet cannot be returned to the core server. Therefore, if the core server does not receive a heartbeat response packet returned by a certain domain name server within a preset time, the domain name server can be considered to be offline. When the domain name server is offline, the core server may delete the domain name list corresponding to the domain name server because all domain names maintained in the domain name server are unavailable (i.e., offline).
For the preset heartbeat time interval and the preset time, a person skilled in the art may select any suitable value according to practical experience, and the embodiment of the present invention is not limited thereto. For example, the predetermined heartbeat interval may be 2 seconds, 3 seconds, 5 seconds, and so on. The preset time may be 10 seconds, 15 seconds, 20 seconds, etc.
In the embodiment of the invention, the core server can only record the domain name maintained by the online domain name server without recording the domain name maintained by the offline domain name server, thereby more simply and conveniently maintaining the domain name list.
EXAMPLE III
Referring to fig. 3, a flowchart illustrating steps of a domain name processing method according to a third embodiment of the present invention is shown. The domain name processing method of the embodiment of the invention can be applied to a domain name server.
The domain name processing method of the embodiment of the invention can comprise the following steps:
After receiving the network access success instruction sent by the core server, the domain name server learns that the network access is successful, and at the moment, the domain name server can synchronize the domain name registered in the domain name server and the state of the registered domain name to the core server.
Therefore, the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one, generates a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized, and sends the domain name synchronization instruction to the core server.
Since the state of the domain name may change during the use process, the domain name server may also periodically determine whether the domain name needs to be synchronized. When the domain name server judges that the domain name needs to be synchronized, the domain name server determines the domain name to be synchronized, generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized, and sends the domain name synchronization instruction to the core server.
In the embodiment of the invention, the domain name server sends the domain name synchronization instruction to the core server so as to synchronize the current domain name state to the core server in real time and ensure the accuracy of a domain name list in the core server.
Example four
Referring to fig. 4, a flowchart illustrating steps of a domain name processing method according to a fourth embodiment of the present invention is shown. The domain name processing method of the embodiment of the invention can be applied to a domain name server.
The domain name processing method of the embodiment of the invention can comprise the following steps:
And after receiving the network access success instruction sent by the core server, the domain name server takes the registered domain name as the domain name to be synchronized. The domain name server acquires the states of the domain names to be synchronized one by one, wherein the states can comprise online and offline. For example, the domain name server may simulate the client to access the domain name to be synchronized, and obtain the state of the domain name to be synchronized. For another example, the domain name server may check whether the domain name to be synchronized is available (available indicates online, and unavailable indicates offline) by using a "ping" command, and obtain the status of the domain name to be synchronized. Of course, the domain name server may also acquire the state of the domain name to be synchronized by any other suitable method.
After the domain name server obtains the state of a domain name to be synchronized, a domain name synchronization instruction can be generated, and the domain name synchronization instruction carries the domain name to be synchronized and the state of the domain name to be synchronized. After the domain name server generates a domain name synchronization instruction, the domain name synchronization instruction can be sent to the core server. For example, the domain name synchronization command may be 9a31 commands, each 9a31 command includes a domain name to be synchronized and a status of the domain name to be synchronized, that is, the 9a31 command includes: domain name (e.g. slw. name1.go), status (1 online, 0 offline).
In step 403, the domain name server determines whether domain name synchronization is required.
Since the state of the domain name may change during the use process, the domain name server may also periodically determine whether the domain name needs to be synchronized.
If full synchronization is adopted, the domain name server can perform full synchronization once every preset full synchronization time interval. Therefore, the domain name server can detect whether the time for synchronizing the domain name (i.e. the time for synchronizing the domain name with the last time) reaches the preset full-scale synchronization time interval or not in real time, and can determine that the domain name needs to be synchronized when the time for synchronizing the domain name with the last time is detected to reach the preset full-scale synchronization time interval.
In this case, the process of determining the domain name to be synchronized by the domain name server and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized may include: the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one, and generates domain name synchronization instructions carrying the domain names to be synchronized and the states of the domain names to be synchronized. After the domain name server obtains the state of a domain name to be synchronized, a domain name synchronization instruction can be generated, and the domain name synchronization instruction is sent to the core server.
If incremental synchronization is adopted, the domain name server can perform incremental synchronization once at preset incremental synchronization time intervals. Therefore, the domain name server can detect whether the time for synchronizing the domain names (i.e. the time for last incremental synchronization) reaches the preset incremental synchronization time interval from the last time in real time, detect whether the states of the registered domain names are changed one by one when the preset incremental synchronization time interval is detected, and determine that the domain names are required to be synchronized when the states of the registered domain names are changed. Wherein, the state change means to change from offline to online or from online to offline. For example, the domain name server may record the state of the registered domain name, and when it is detected that the preset incremental synchronization time interval is reached, the current state of the registered domain name is acquired one by one, and the current state is compared with the previously recorded state, so as to detect whether the state of the registered domain name changes.
In this case, the process of determining the domain name to be synchronized by the domain name server and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized may include: and the domain name server takes the domain name with the changed state as a domain name to be synchronized, acquires the state of the domain name to be synchronized and generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized. After the domain name server obtains the state of a domain name to be synchronized, a domain name synchronization instruction can be generated, and the domain name synchronization instruction is sent to the core server.
In the embodiment of the invention, one incremental synchronization mode or one full-scale synchronization mode can be adopted, and two synchronization modes of incremental synchronization and full-scale synchronization can be adopted. The incremental synchronization mode can ensure the real-time performance of synchronization, and the full synchronization mode can ensure the comprehensiveness of synchronization.
For the above-mentioned preset full-amount synchronization time interval and preset incremental synchronization time interval, a person skilled in the art may select any suitable value according to practical experience, and the embodiment of the present invention is not limited thereto. For example, the preset full sync interval may be 10 minutes, 15 minutes, and so on. The preset incremental sync interval may be 2 minutes, 5 minutes, etc.
In the embodiment of the invention, the real-time property of domain name state maintenance can be improved by depending on the low-delay characteristic of the video network.
EXAMPLE five
The embodiment of the invention introduces a domain name processing method from the interaction process of a core server and a domain name server. The domain name processing method may include the following processes:
1. after obtaining the terminal number from the core server, the domain name server sends a notification instruction to the core server to indicate that the terminal wants to access the network and starts the network access process.
2. After receiving the notification command, the core server broadcasts 8a01 a network entry command.
3. After receiving the 8a01 network access command, the domain name server sends 8a05 response network access command to the core server. 8a05 responds to the network access command and carries indication information indicating that the network access terminal is a domain name server.
4. After receiving the response network access instruction of 8a05, the core server creates a blank domain name list, and associates the domain name list with the terminal number of the domain name server to serve as the domain name list corresponding to the domain name server. The core server sends 8a13 network entry success command to the domain name server.
5. After receiving the 8a13 successful network access command, the domain name server acquires the states of the registered domain names one by one, generates a 9A31 domain name synchronization command carrying the registered domain name and the registered state of the domain name every time acquiring the state of one registered domain name, and sends the 9A31 domain name synchronization command to the core server.
6. The domain name server carries out full synchronization once at intervals of preset full synchronization time, acquires the states of the registered domain names one by one, generates a 9A31 domain name synchronization instruction carrying the registered domain names and the states of the registered domain names each time the state of one registered domain name is acquired, and sends the 9A31 domain name synchronization instruction to the core server.
For example, full-scale synchronization is performed every 15 minutes. Fig. 5 is a schematic diagram of a full-scale synchronization process according to a fifth embodiment of the present invention. As shown in fig. 5, the full-scale synchronization may include: the domain name server checks the state of the domain name; the domain name server reports the domain name state to the core server through the instruction of the video network 9A 31; the core server maintains a domain name list corresponding to the domain name server; after waiting 15 minutes, the domain name server checks the domain name status again and repeats the above process.
7. The domain name server performs incremental synchronization once at intervals of preset incremental synchronization time, detects whether the state of the registered domain names changes one by one, acquires the state of the state-changed domain name when detecting the state change of one registered domain name, generates a 9A31 domain name synchronization instruction carrying the state-changed domain name and the state-changed domain name, and sends the 9A31 domain name synchronization instruction to the core server.
8. After receiving a 9A31 domain name synchronization instruction, the core server maintains a domain name list corresponding to the domain name server.
The core server checks whether the domain name list corresponding to the domain name server contains the domain name in the received 9a31 domain name synchronization instruction.
8.1, if the domain name is not contained in the domain name list, checking 9A31 whether the state of the domain name in the domain name synchronization command is online.
8.1.1, if the domain name is online, add the domain name to the list of domain names.
8.1.2, if the domain name is not online, the instruction is not processed, and the service is terminated.
8.2, if the domain name is contained in the domain name list, checking 9A31 whether the state of the domain name in the domain name synchronization command is online.
8.2.1, if the domain name is online, the instruction is not processed, and the service is terminated.
8.2.2, if the domain name is not online, remove the domain name out of the list of domain names.
9. The core server sends heartbeat detection packets to the domain name server according to preset heartbeat time intervals, and if heartbeat response packets returned by the domain name server are not received within preset time, the domain name list corresponding to the domain name server is deleted.
In the embodiment of the invention, the core server is allowed to identify the network access terminal as the domain name server for providing the service of maintaining the domain name state through a special video network access instruction. Based on the network structure of the video network, the position of the domain name server is only known by the core server, so that the equipment in the video network keeps anonymity, and better security is provided than the Internet domain name service. The domain name server relies on the low-delay characteristic of the video network, and the real-time performance of the domain name state is better. For example, if a user visits www.teclortual.com a domain name, the browser may wait for a long time before the user makes a page 404 error, because the domain name system of the internet has very poor real-time performance, the present invention can acquire the domain name status in real time in the internet of view, and further acquire the actual address and status of the website server.
EXAMPLE six
Referring to fig. 6, a block diagram of a domain name processing apparatus according to a sixth embodiment of the present invention is shown. The domain name processing device provided by the embodiment of the invention is applied to a core server in a video network, wherein the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with one domain name server, and each domain name server is in communication connection with the core server.
The domain name processing device of the embodiment of the invention can comprise the following modules:
the network access module 601 is configured to broadcast a network access instruction when the domain name server accesses the network, and receive a response network access instruction sent by the domain name server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
a creating module 602, configured to create a blank domain name list corresponding to the domain name server based on the indication information, and send a network access success instruction to the domain name server;
the updating module 603 is configured to update a domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized, after receiving the domain name synchronization instruction sent by the domain name server.
Optionally, the domain name list is used to store domain names in the domain name server in an online state; the update module 603 includes: a domain name deleting unit, configured to delete the domain name to be synchronized from the domain name list when the domain name list includes the domain name to be synchronized and the state of the domain name to be synchronized is offline; and the domain name adding unit is used for adding the domain name to be synchronized into the domain name list when the domain name list does not contain the domain name to be synchronized and the state of the domain name to be synchronized is online.
Optionally, the apparatus further comprises: the heartbeat detection module is used for sending heartbeat detection packets to the domain name server according to a preset heartbeat time interval; and the list deleting module is used for deleting the domain name list corresponding to the domain name server if the heartbeat response packet returned by the domain name server is not received within the preset time.
EXAMPLE seven
Referring to fig. 7, a block diagram of a domain name processing apparatus according to a seventh embodiment of the present invention is shown. The device is applied to a domain name server in a video network, the video network comprises a plurality of local video networks which are isolated from each other, one domain name server is arranged in each local video network, and each domain name server is in communication connection with a core server.
The domain name processing device of the embodiment of the invention can comprise the following modules:
a sending module 701, configured to send a response network access instruction to the core server after receiving the network access instruction broadcast by the core server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
a first synchronization module 702, configured to, after receiving a network access success instruction sent by the core server, take a registered domain name as a domain name to be synchronized, acquire states of the domain name to be synchronized one by one, generate a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized, and send the domain name synchronization instruction to the core server;
the second synchronization module 703 is configured to determine a domain name to be synchronized when it is determined that the domain name needs to be synchronized, generate a domain name synchronization instruction carrying the domain name to be synchronized and a state of the domain name to be synchronized, and send the domain name synchronization instruction to the core server.
Optionally, the apparatus further comprises: the first judgment module is used for judging that the domain name needs to be synchronized when the preset full synchronization time interval is detected. The second synchronization module 703 includes: and the first generating unit is used for taking the registered domain names as domain names to be synchronized, acquiring the states of the domain names to be synchronized one by one, and generating a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized.
Optionally, the apparatus further comprises: and the second judging module is used for detecting whether the state of the registered domain name is changed one by one when detecting that the preset increment synchronization time interval is reached, and judging that the domain name needs to be synchronized when detecting that the state of the registered domain name is changed. The second synchronization module 703 includes: and the second generation unit is used for taking the domain name with the changed state as a domain name to be synchronized, acquiring the state of the domain name to be synchronized and generating a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized.
In the embodiment of the invention, a domain name server is deployed in each local area network of vision, and the domain name in the local area network of vision in which the domain name server is located can be effectively managed through the domain name server; and the core server can maintain the domain name state in the corresponding domain name server through the domain name list, and obtain the global domain name state through the distributed domain name server.
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.
In an embodiment of the invention, an electronic device is also provided. The electronic device may include one or more processors and one or more machine-readable media having instructions, such as an application program, stored thereon. The instructions, when executed by the one or more processors, cause the processors to perform the above-described domain name processing method performed by a core server.
In an embodiment of the invention, an electronic device is also provided. The electronic device may include one or more processors and one or more machine-readable media having instructions, such as an application program, stored thereon. The instructions, when executed by the one or more processors, cause the processors to perform the above-described method of domain name processing performed by a domain name server.
In an embodiment of the present invention, there is also provided a non-transitory computer-readable storage medium having stored thereon a computer program executable by a processor of an electronic device to perform the above-described domain name processing method performed by a core server.
In an embodiment of the invention, an electronic device is also provided. The electronic device may include one or more processors and one or more machine-readable media having instructions, such as an application program, stored thereon. The instructions, when executed by the one or more processors, cause the processors to perform the above-described method of domain name processing performed by a domain name server.
For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
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 processing method, the domain name processing device, the electronic device and the storage medium provided by the invention are introduced in detail, a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used for helping to understand 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 (12)
1. A domain name processing method is characterized in that the method is applied to a video network, the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with a core server; the method comprises the following steps:
when the domain name server accesses the network, the core server broadcasts a network access instruction and receives a response network access instruction sent by the domain name server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the core server creates a blank domain name list corresponding to the domain name server based on the indication information and sends a network access success instruction to the domain name server;
after receiving a domain name synchronization instruction sent by the domain name server, the core server updates a domain name list corresponding to the domain name server according to a domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized.
2. The method of claim 1, wherein the domain name list is used to store domain names that are online in the domain name server;
updating a domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronization instruction and the state of the domain name to be synchronized, wherein the updating comprises the following steps:
the core server deletes the domain name to be synchronized from the domain name list when the domain name list comprises the domain name to be synchronized and the state of the domain name to be synchronized is offline;
and when the domain name list does not contain the domain name to be synchronized and the state of the domain name to be synchronized is online, the core server adds the domain name to be synchronized to the domain name list.
3. The method of claim 1, further comprising:
the core server sends heartbeat detection packets to the domain name server according to a preset heartbeat time interval;
and if the core server does not receive the heartbeat response packet returned by the domain name server within the preset time, deleting the domain name list corresponding to the domain name server.
4. A domain name processing method is characterized in that the method is applied to a video network, the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with a core server; the method comprises the following steps:
after receiving a network access instruction broadcasted by the core server, the domain name server sends a response network access instruction to the core server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
after receiving a successful network access instruction sent by the core server, the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one, generates a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized, and sends the domain name synchronization instruction to the core server;
when the domain name server judges that the domain name needs to be synchronized, the domain name server determines the domain name to be synchronized, generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized, and sends the domain name synchronization instruction to the core server.
5. The method of claim 4,
when the domain name server determines that the domain name needs to be synchronized, before determining the domain name to be synchronized, the method further comprises the following steps: when the domain name server detects that a preset full synchronization time interval is reached, judging that a domain name needs to be synchronized;
the determining the domain name to be synchronized and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized comprise: and the domain name server takes the registered domain names as domain names to be synchronized, acquires the states of the domain names to be synchronized one by one and generates a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized.
6. The method according to claim 4 or 5,
when the domain name server determines that the domain name needs to be synchronized, before determining the domain name to be synchronized, the method further comprises the following steps: the domain name server detects whether the state of the registered domain name is changed one by one when detecting that a preset increment synchronization time interval is reached, and judges that the domain name needs to be synchronized when detecting that the state of the registered domain name is changed;
the determining the domain name to be synchronized and generating the domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized comprise: the domain name server takes the domain name with changed state as the domain name to be synchronized, acquires the state of the domain name to be synchronized, and generates a domain name synchronization instruction carrying the domain name to be synchronized and the state of the domain name to be synchronized.
7. A domain name processing device is characterized in that the device is applied to a core server in a video network, the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with a domain name server, and each domain name server is in communication connection with the core server; the device comprises:
the network access module is used for broadcasting a network access instruction when the domain name server accesses the network and receiving a response network access instruction sent by the domain name server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the creating module is used for creating a blank domain name list corresponding to the domain name server based on the indication information and sending a network access success instruction to the domain name server;
and the updating module is used for updating the domain name list corresponding to the domain name server according to the domain name to be synchronized carried in the domain name synchronizing instruction and the state of the domain name to be synchronized after receiving the domain name synchronizing instruction sent by the domain name server.
8. A domain name processing device is characterized in that the device is applied to a domain name server in a video network, the video network comprises a plurality of local video networks which are isolated from each other, each local video network is provided with one domain name server, and each domain name server is in communication connection with a core server; the device comprises:
the sending module is used for sending a response network access instruction to the core server after receiving the network access instruction broadcasted by the core server; the response network access instruction carries indication information indicating that the network access terminal is a domain name server;
the first synchronization module is used for taking the registered domain names as domain names to be synchronized after receiving a network access success instruction sent by the core server, acquiring the states of the domain names to be synchronized one by one, generating a domain name synchronization instruction carrying the domain names to be synchronized and the states of the domain names to be synchronized, and sending the domain name synchronization instruction to the core server;
and the second synchronization module is used for determining the domain name to be synchronized when the domain name needs to be synchronized, generating a domain name synchronization instruction carrying the state of the domain name to be synchronized and the state of the domain name to be synchronized, and sending the domain name synchronization instruction to the core server.
9. An electronic device, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon;
the instructions, when executed by the one or more processors, cause the processors to perform a domain name processing method according to any one of claims 1 to 3.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which when executed by a processor implements the domain name processing method according to any one of claims 1 to 3.
11. An electronic device, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon;
the instructions, when executed by the one or more processors, cause the processors to perform a domain name processing method according to any one of claims 4 to 6.
12. A computer-readable storage medium, characterized in that a computer program is stored thereon, which when executed by a processor implements the domain name processing method according to any one of claims 4 to 6.
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