CN111343299A - Multi-protocol active detection type intelligent DNS and method thereof - Google Patents
Multi-protocol active detection type intelligent DNS and method thereof Download PDFInfo
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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 discloses a multi-protocol active detection type intelligent DNS and a method thereof, wherein a DNS upstream server of UDP, TCP, TLS and HTTPS protocols is supported, and DNS analysis service of UDP, TCP, TLS and HTTPS protocols is provided for a client; the unique node IP with the shortest response time can be selected as a domain name query result to be transmitted to the client by actively detecting the domain name resolution result IP of the upstream server, and the intelligent DNS supports internal service packets, wherein each packet can directly respond to the request of the client through different protocols and ports. Compared with the prior art, the method and the system can actively judge the result IP while supporting various DNS protocols, and return the result IP to the IP node with the shortest response time of the client, thereby improving the response time of WEB; simplified deployment of traditional DNS is achieved by using internal DNS service groupings of different ports. The quality of the analytic address is improved while the use cost and the later maintenance amount are reduced, and the method has popularization and application values.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a multi-protocol active detection type intelligent DNS and a method thereof.
Background
The internet has been developed to the present stage, and the use of CDN (content caching service) has been very widespread. After a network address domain name uses CDN service, each domain name corresponds to a plurality of CDN nodes, and a CDN service provider cannot inform all DNS service providers in time after updating the CDN service nodes, so that the CDN node IP addresses obtained by using DNS servers of different DNS service providers to query the domain name by Internet terminal equipment are not always the same, the response time of the CDN node IP addresses to an Internet terminal is fast or slow, and the problem of different speeds of accessing websites due to different IP addresses returned by DNS server query is caused.
At present, a large number of internet terminals only support domain name resolution services provided by a DNS server of a UDP protocol 53 port, and a large number of DNS servers supporting new protocols such as TCP, TLS, HTTPS and the like have appeared, and it has become a problem that a conventional internet terminal device cannot directly use these new DNS servers.
In a large-scale multi-network-segment network with multiple operator outlets, flow strategies of an outlet router and a firewall usually require different internal network segments to preferentially use different operator networks, which requires that an internal DNS server can select to switch an upstream operator DNS group, so that the operator networks are used in a more efficient manner by matching with the routing strategies of the firewall and the outlet equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a multi-protocol active detection type intelligent DNS and a method thereof, which solve the problem of CDN node IP selection with shortest response time, and improve the compatibility of the traditional terminal equipment to a novel DNS analysis protocol and the combination of an intranet multi-DNS server.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the invention provides a multiprotocol active probing type intelligent DNS, comprising:
intelligent DNS ports can be customized: the DNS server system comprises a DNS server, a client and a plurality of protocols, wherein the DNS server is used for butting a client and the DNS server with the plurality of protocols, receiving a domain name query request of the client, forwarding the domain name query request to the DNS server in parallel and returning a domain name resolution result to the client; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS port allows customization of a supportable DNS upstream server type;
a response time analysis module: and the response time of the TCP protocol 80 port and 443 port of each group of IP addresses obtained by analyzing each DNS upstream server is actively detected through the TCP protocol, so that the IP address with the shortest response time is found out and returned to the customizable intelligent DNS port as a domain name analysis result, and the customizable intelligent DNS port is returned to the client.
The invention also provides a method for actively detecting the intelligent DNS by using the multi-protocol, which comprises the following steps:
s1, completing the configuration of the customizable intelligent DNS port, and defining the type of the DNS upstream server supported by the customizable intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port by the client through one or more of a UDP protocol, a TCP protocol, a TLS protocol and an HTTPS protocol;
s3, the customizable intelligent DNS port forwards the domain name query request received in the step S2 to each DNS upstream server in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the obtained IP address, and the response time analysis module actively detects the response time of the TCP protocol 80 and 443 port of the IP address obtained by the resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and returned to the customizable intelligent DNS port as the domain name resolution result;
and S5, the customizable intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
Further, in step S4, the response time analysis module actively detects and stores the response time of the TCP80 and 443 ports of each IP address in the IP result set through the TCP protocol, and compares the magnitude of the primary value and selects the IP address with a smaller primary value as the result of domain name resolution, and if the primary values are the same, compares the secondary values and selects the IP address with a smaller secondary value as the result of domain name resolution, with the response time of one of the IP address 80 and 443 ports as the primary value and the response time of the other as the secondary value.
As another solution, the present invention provides another multi-protocol active probing type intelligent DNS, including:
intelligent DNS ports can be customized: the system comprises a client, a sub-intelligent DNS port capable of being defined by oneself, a domain name query request receiving module, a sub-intelligent DNS port capable of being defined by oneself, a domain name resolution module and a domain name resolution module, wherein the sub-intelligent DNS port capable of being defined by oneself is used for butting the client, receiving the domain name query request of the client, forwarding the domain name;
a child intelligent DNS port can be self-defined: each sub-intelligent DNS port capable of being defined by oneself is butted with the intelligent DNS port capable of being defined by oneself, and is butted with a client, and a domain name query request is received from the intelligent DNS port capable of being defined by oneself or the client; each sub-intelligent DNS port capable of being defined by self is respectively connected with a DNS upstream server with a plurality of protocols; the DNS upstream server which can be supported by the self-definable sub-intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable sub-intelligent DNS port allows customization of supportable DNS upstream server types;
a response time analysis module: and the response time of the TCP protocol 80 port and 443 port used for actively detecting the IP address obtained by the resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out as a domain name resolution result and returned to the customizable intelligent DNS port or the customizable sub-intelligent DNS port.
Further, in the multi-protocol active probing type intelligent DNS, the customizable intelligent DNS port may also independently interface with DNS upstream servers of multiple protocols, receive a domain name query request of a client, forward the domain name query request to each of the interfaced DNS upstream servers in parallel, and return a domain name query result to the client; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS ports allow customization of supportable DNS upstream server types.
The invention also provides a method for actively detecting the intelligent DNS by using the multi-protocol, which comprises the following steps:
s1, completing the configuration of the self-definable intelligent DNS port and each self-definable sub-intelligent DNS port, and defining the DNS upstream server type supported by each self-definable sub-intelligent DNS port; the DNS upstream server which can be supported by the self-definable sub-intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port or the customizable sub-intelligent DNS port by the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol;
s3, when the client sends out the domain name query request to the self-definable intelligent DNS port, the self-definable intelligent DNS port sends the domain name query request to each self-definable sub-intelligent DNS port in parallel, and each self-definable sub-intelligent DNS port sends the domain name query request to each DNS upstream server which is connected with the self-definable sub-intelligent DNS port in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the IP address obtained by resolution, and the response time analysis module actively detects the response time of the TCP protocol 80 port and the TCP protocol 443 port of the IP address obtained by resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and used as the domain name resolution result;
s5, if the domain name query request is sent directly from the client to the self-defined sub-intelligent DNS port, the self-defined sub-intelligent DNS port returns the domain name resolution result to the client; if the domain name query request is sent to the customizable intelligent DNS port by the client, returning the domain name resolution result to the client by the customizable intelligent DNS port;
the self-defined intelligent DNS port or the self-defined sub-intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
Further, step S1 further includes defining a DNS upstream server type that can be supported by the customized intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server.
Further, when the customizable intelligent DNS port is independently docked with multiple types of DNS upstream servers, in step S3, when the client sends a domain name query request to the customizable intelligent DNS port, the customizable intelligent DNS port sends the domain name query request to each docked DNS upstream server in parallel and/or to each customizable sub-intelligent DNS port, and each customizable sub-intelligent DNS port sends the domain name query request to each DNS upstream server docked by itself in parallel.
Further, in step S4, the response time analysis module actively detects and stores the response time of the TCP80 and 443 ports of each IP address in the IP result set through the TCP protocol, and compares the magnitude of the primary value and selects the IP address with a smaller primary value as the result of domain name resolution, and if the primary values are the same, compares the secondary values and selects the IP address with a smaller secondary value as the result of domain name resolution, with the response time of one of the IP address 80 and 443 ports as the primary value and the response time of the other as the secondary value.
The invention has the beneficial effects that: compared with the prior art, the method and the system can actively judge the IP address obtained by domain name resolution while supporting various DNS protocols, and return the IP address to the IP node with the shortest response time of the client, thereby improving the response time of WEB; simplified deployment of traditional DNS is achieved by using internal DNS service groupings of different ports. The quality of the analytic address is improved while the use cost and the later maintenance amount are reduced, and the method has popularization and application values.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Example 1
The present embodiment provides a multi-protocol active probing type intelligent DNS, as shown in fig. 1, including:
the intelligent DNS port 101 can be customized: the domain name resolution method comprises the steps of interfacing a client 102 and DNS upstream servers 103 with multiple protocols, receiving domain name query requests of the client 102, forwarding the domain name query requests to the DNS upstream servers 103 in parallel, and returning domain name resolution results to the client 102; the DNS upstream server 103 which can be supported by the customizable intelligent DNS port 101 comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS port 101 allows customization of the type of DNS upstream server 103 that can be supported;
response time analysis module 104: the response time of the TCP protocol 80 port and 443 port used for actively detecting the IP address obtained by the resolution of each DNS upstream server 103 through the TCP protocol, so as to find out the IP address with the shortest response time and return the IP address as a domain name resolution result to the customizable intelligent DNS port 101, and the customizable intelligent DNS port 101 returns the IP address to the client 102.
Example 2
The present embodiment provides another multi-protocol active probing type intelligent DNS, as shown in fig. 2, including:
the intelligent DNS port 201 can be customized: the system is used for butting the client 202 and the definable sub-intelligent DNS port 203, receiving a domain name query request of the client 202, forwarding the domain name query request to each definable sub-intelligent DNS port 203 in parallel, and returning a domain name resolution result to the client 202;
the child intelligent DNS port 203 can be self-defined: each definable sub-intelligent DNS port 203 is in butt joint with the customizable intelligent DNS port 201 and the client 202, and receives a domain name query request from the customizable intelligent DNS port 201 or the client 202; each definable sub-intelligent DNS port 203 is respectively interfaced with a DNS upstream server 204 with multiple protocols; the DNS upstream servers 204 that the self-definable sub-intelligent DNS port 203 can support include one or more of UDP protocol DNS upstream servers, TCP protocol DNS upstream servers, TLS protocol DNS upstream servers, and HTTPS protocol DNS upstream servers; the customizable sub-intelligent DNS port allows customization of supportable DNS upstream server types;
response time analysis module 205: and the response time of the TCP protocol 80 port and 443 port, which are used for actively detecting the IP address obtained by the resolution of each DNS upstream server 204 through the TCP protocol, so that the IP address with the shortest response time is found out as a domain name resolution result and returned to the customizable intelligent DNS port 201 or the customizable sub-intelligent DNS port 203.
Further, the customizable intelligent DNS port 201 can also independently interface DNS upstream servers of multiple protocols (fig. 2 only shows a case where the customizable intelligent DNS port interfaces with the customizable sub-intelligent DNS port 203, and an example of the customizable intelligent DNS port interfacing with the DNS upstream servers can refer to embodiment 1), receive a domain name query request of a client and forward the domain name query request to each interfaced DNS upstream server in parallel, and return a domain name query result to the client; the DNS upstream server 204 which can be supported by the customizable intelligent DNS port 201 comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS ports allow customization of supportable DNS upstream server types.
Example 3
The present embodiment provides a method for using the multi-protocol active probing type intelligent DNS described in embodiment 1, including the following steps:
s1, completing the configuration of the customizable intelligent DNS port, and defining the type of the DNS upstream server supported by the customizable intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port by the client through one or more of a UDP protocol, a TCP protocol, a TLS protocol and an HTTPS protocol;
s3, the customizable intelligent DNS port forwards the domain name query request received in the step S2 to each DNS upstream server in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the obtained IP address, and the response time analysis module actively detects the response time of the TCP protocol 80 and 443 port of the IP address obtained by the resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and returned to the customizable intelligent DNS port as the domain name resolution result;
and S5, the customizable intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
Further, in step S4, the response time analysis module actively detects and stores the response time of the TCP80 and 443 ports of each IP address in the IP result set through the TCP protocol, and compares the magnitude of the primary value and selects the IP address with a smaller primary value as the result of domain name resolution, and if the primary values are the same, compares the secondary values and selects the IP address with a smaller secondary value as the result of domain name resolution, with the response time of one of the IP address 80 and 443 ports as the primary value and the response time of the other as the secondary value. The selection of which of the 80 or 443 ports is the primary can be customized.
Example 4
The present embodiment provides a method for using the multi-protocol active probing type intelligent DNS described in embodiment 2, including the following steps:
s1, completing the configuration of the self-definable intelligent DNS port and each self-definable sub-intelligent DNS port, and defining the DNS upstream server type supported by each self-definable sub-intelligent DNS port; the DNS upstream server which can be supported by the self-definable sub-intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port or the customizable sub-intelligent DNS port by the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol;
s3, when the client sends out the domain name query request to the self-definable intelligent DNS port, the self-definable intelligent DNS port sends the domain name query request to each self-definable sub-intelligent DNS port in parallel, and each self-definable sub-intelligent DNS port sends the domain name query request to each DNS upstream server which is connected with the self-definable sub-intelligent DNS port in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the IP address obtained by resolution, and the response time analysis module actively detects the response time of the TCP protocol 80 port and the TCP protocol 443 port of the IP address obtained by resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and used as the domain name resolution result;
s5, if the domain name query request is sent directly from the client to the self-defined sub-intelligent DNS port, the self-defined sub-intelligent DNS port returns the domain name resolution result to the client; if the domain name query request is sent to the customizable intelligent DNS port by the client, returning the domain name resolution result to the client by the customizable intelligent DNS port;
the self-defined intelligent DNS port or the self-defined sub-intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
Further, step S1 further includes defining a DNS upstream server type that can be supported by the customized intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server.
Further, when the customizable intelligent DNS port is independently docked with multiple types of DNS upstream servers, in step S3, when the client sends a domain name query request to the customizable intelligent DNS port, the customizable intelligent DNS port sends the domain name query request to each docked DNS upstream server in parallel and/or to each customizable sub-intelligent DNS port in parallel, and each customizable sub-intelligent DNS port sends the domain name query request to each DNS upstream server docked by itself in parallel.
Further, in step S4, the response time analysis module actively detects and stores the response time of the TCP80 and 443 ports of each IP address in the IP result set through the TCP protocol, and compares the magnitude of the primary value and selects the IP address with a smaller primary value as the result of domain name resolution, and if the primary values are the same, compares the secondary values and selects the IP address with a smaller secondary value as the result of domain name resolution, with the response time of one of the IP address 80 and 443 ports as the primary value and the response time of the other as the secondary value.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (9)
1. A multi-protocol active probing intelligent DNS, comprising:
customizable intelligent DNS port (101): the domain name resolution method comprises the steps that a DNS upstream server (103) used for butting a client (102) and multiple protocols receives domain name query requests of the client and forwards the domain name query requests to the DNS upstream servers in parallel, and domain name resolution results are returned to the client; the DNS upstream server (103) which can be supported by the customizable intelligent DNS port (101) comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS port (101) allows customization of supportable DNS upstream server types;
response time analysis module (104): and the response time of the TCP protocol 80 port and 443 port of each group of IP addresses obtained by analyzing each DNS upstream server is actively detected through the TCP protocol, so that the IP address with the shortest response time is found out and returned to the customizable intelligent DNS port as a domain name analysis result, and the customizable intelligent DNS port is returned to the client.
2. A method of using the multi-protocol active probing intelligent DNS as claimed in claim 1, comprising the steps of:
s1, completing the configuration of the customizable intelligent DNS port, and defining the type of the DNS upstream server supported by the customizable intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port by the client through one or more of a UDP protocol, a TCP protocol, a TLS protocol and an HTTPS protocol;
s3, the customizable intelligent DNS port forwards the domain name query request received in the step S2 to each DNS upstream server in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the obtained IP address, and the response time analysis module actively detects the response time of the TCP protocol 80 and 443 port of the IP address obtained by the resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and returned to the customizable intelligent DNS port as the domain name resolution result;
and S5, the customizable intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
3. The method of claim 2, wherein in step S4, the response time analysis module actively detects the response time of TCP80 and 443 of each IP address in the IP result set through TCP protocol and saves the response time, and with the response time of one of 80 and 443 of each IP address as a primary value and the response time of the other as a secondary value, compares the primary values, selects the IP address with smaller primary value as the domain name resolution result, and compares the secondary values if the primary values are the same, and selects the IP address with smaller secondary value as the domain name resolution result.
4. A multi-protocol active probing intelligent DNS, comprising:
customizable intelligent DNS port (201): the system comprises a client (202), definable sub-intelligent DNS ports (203), a domain name query request of the client (202) is received and forwarded to each definable sub-intelligent DNS port (203) in parallel, and a domain name resolution result is returned to the client (202);
a child intelligent DNS port (203) may be self-defined: each customizable sub-intelligent DNS port (203) is interfaced with the customizable intelligent DNS port (201) and with a client (202), and receives a domain name query request from the customizable intelligent DNS port (201) or the client (202); each definable sub-intelligent DNS port (203) respectively interfacing with a DNS upstream server (204) having a plurality of protocols; the DNS upstream server (204) supportable by the self-definable sub-intelligent DNS port (203) comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable sub-intelligent DNS port allows customization of supportable DNS upstream server types;
response time analysis module (205): and actively detecting response time of the TCP protocol 80 port and 443 port of the IP address obtained by resolution of each DNS upstream server (204) through the TCP protocol, thereby finding out the IP address with the shortest response time as a domain name resolution result and returning the IP address to the customizable intelligent DNS port (201) or the customizable sub-intelligent DNS port (203).
5. The multi-protocol active probing type intelligent DNS according to claim 4 wherein the customizable intelligent DNS port (201) independently interfaces with DNS upstream servers of multiple protocols, receives domain name query requests of clients and forwards the domain name query requests to the interfaced DNS upstream servers in parallel, and returns domain name query results to the clients; the DNS upstream server (204) which can be supported by the customizable intelligent DNS port (201) comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server; the customizable intelligent DNS ports allow customization of supportable DNS upstream server types.
6. A method for using the multi-protocol active probing intelligent DNS as claimed in any one of claims 4-5, comprising the steps of:
s1, completing the configuration of the self-definable intelligent DNS port and each self-definable sub-intelligent DNS port, and defining the DNS upstream server type supported by each self-definable sub-intelligent DNS port; the DNS upstream server which can be supported by the self-definable sub-intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server;
s2, sending a domain name query request to the customizable intelligent DNS port or the customizable sub-intelligent DNS port by the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol;
s3, when the client sends out the domain name query request to the self-definable intelligent DNS port, the self-definable intelligent DNS port sends the domain name query request to each self-definable sub-intelligent DNS port in parallel, and each self-definable sub-intelligent DNS port sends the domain name query request to each DNS upstream server which is connected with the self-definable sub-intelligent DNS port in parallel;
s4, each DNS upstream server carries out domain name resolution according to the domain name query request and returns the IP address obtained by resolution, and the response time analysis module actively detects the response time of the TCP protocol 80 port and the TCP protocol 443 port of the IP address obtained by resolution of each DNS upstream server through the TCP protocol, so that the IP address with the shortest response time is found out and used as the domain name resolution result;
s5, if the domain name query request is sent directly from the client to the self-defined sub-intelligent DNS port, the self-defined sub-intelligent DNS port returns the domain name resolution result to the client; if the domain name query request is sent to the customizable intelligent DNS port by the client, returning the domain name resolution result to the client by the customizable intelligent DNS port;
the self-defined intelligent DNS port or the self-defined sub-intelligent DNS port returns the domain name resolution result to the client through one or more of UDP protocol, TCP protocol, TLS protocol and HTTPS protocol according to the protocol type of the domain name query request sent by the client.
7. The method of claim 6, wherein step S1 further comprises defining a DNS upstream server type that can be supported by the customized intelligent DNS port; the DNS upstream server which can be supported by the customizable intelligent DNS port comprises one or more of a UDP protocol DNS upstream server, a TCP protocol DNS upstream server, a TLS protocol DNS upstream server and an HTTPS protocol DNS upstream server.
8. The method according to claim 7, wherein when the customizable intelligent DNS port is independently docked with multiple types of DNS upstream servers, in step S3, when the client sends a domain name query request to the customizable intelligent DNS port, the customizable intelligent DNS port sends the domain name query request to each docked DNS upstream server in parallel and/or to each customizable sub-intelligent DNS port, and each customizable sub-intelligent DNS port sends the domain name query request to each DNS upstream server docked with itself in parallel.
9. The method of claim 6, wherein in step S4, the response time analysis module actively detects the response time of TCP80 and 443 of each IP address in the IP result set through TCP protocol and saves the response time, and with the response time of one of 80 and 443 of each IP address as a primary value and the response time of the other as a secondary value, compares the primary values, selects the IP address with smaller primary value as the domain name resolution result, and compares the secondary values if the primary values are the same, and selects the IP address with smaller secondary value as the domain name resolution result.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113014684A (en) * | 2021-01-18 | 2021-06-22 | 珠海莲鸿科技有限公司 | Communication transfer method and device for saving message verification time of Internet of things equipment |
| CN115022278A (en) * | 2022-06-02 | 2022-09-06 | 上海哔哩哔哩科技有限公司 | CDN processing method and system |
| CN115022278B (en) * | 2022-06-02 | 2024-04-26 | 上海哔哩哔哩科技有限公司 | CDN processing method and system |
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| CN115022278B (en) * | 2022-06-02 | 2024-04-26 | 上海哔哩哔哩科技有限公司 | CDN processing method and system |
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