CN104821965B - DNS intelligently parsing methods based on egress network - Google Patents
DNS intelligently parsing methods based on egress network Download PDFInfo
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Abstract
A kind of DNS intelligently parsing methods based on egress network, its step are as follows：It is added in DNS service configuration and custom-configures parsing information；Intelligently parsing module is added in dns resolution program；When User DN S request datas reach server, according to the information custom-configured, user is parsed, gets corresponding service provider's IP address, and return to user.The present invention only needs to change domain name dns server for associated server configuration, without adding any other hardware device；Be capable of intelligence selects optimal dns resolution as a result, being especially under multi-line environment, to substantially increase network access speed to user；Can open and close freely be configured by user, be completely independent, it is reliable and stable, conflict without any with other configurations.The intelligently parsing that the present invention solves Intranet access internet returns to the most fast operator IP of user, to improve the speed of customer access network to accelerate the resolution speed of domain name.
Description
Technical field
The present invention relates to the technical fields of DNS name resolution, and in particular to a kind of DNS intelligently parsings based on egress network
Method.
Background technology
As former group of China Telecom breaks up the family by north and south region, China Telecom in 2002 and group of Netcom set up immediately, because
The backbone network of this internet is also divided into two, and there is telecommunications in Bei You Netcoms, south.From this, the use of two networks of telecommunications and Netcom
Speed is extremely slow when family mutually accesses, sometimes even also have access less than the case where.The serious visit for affecting website of this phenomenon
The access of the amount of asking and user are experienced, some commercial websites are even more to deeply hurt.The reason of generating this phenomenon is north and south net
Mutual speed limit between network is exchanged visits very slow, it can be understood as the problem of the north and south intercommunication hardly possible of present China Internet,
It is real exactly artificially to manufacture.Though Information Industry Department is already in planning north and south intercommunication plan, in considerably long from now on one section
In phase, domestic each Internet Service Provider（ISP）The problem of interconnection, can also long-term existence.In order to solve between different operators
Access speed, DNS intelligently parsings can intelligence judgement access service provider web sites user, then according to different operations
The visitor of quotient is respectively parsed into domain name different IP address.If visitor is Netcom user, DNS intelligently parsing server meetings
The corresponding Netcom's IP address of domain name of service provider is parsed and gives the visitor.If user is telecommunication user, DNS is intelligently solved
Analysis server, which can parse the corresponding telecommunications IP address of service provider's domain name, gives this visitor.Our intelligent DNS now
The intelligently parsing of Netcom and telecommunications is not only supported also to support the parsing of education network and state's outdoor main unit.I.e. intelligent DNS realize telecommunications,
The intelligently parsing of four net of Netcom, education network and foreign countries.
The analytic method of above-mentioned intelligent DNS is to belong to the different operators such as telecommunications/Netcom/telecommunications according to user, is returned not
Same parsing address, but it also has certain limitation.Manual configuration circuit is needed to forward if user is network with multiple outputs,
It is fixed according to former IP and parses the IP address for returning to fixed operator, or part domain name is configured, user is allowed to access this
Fixed IP address is returned when a little domain names.The above has certain limitation, because the IP of many Intranet users
Location is typically all private address, can not judge operator according to it, can not according to which operator belonging to it and
Parsing returns to the IP address of which operator, can not be configured completely completely by domain name forwarding, and domain name amount is too big, can not will
A large amount of domain names carry out configuration forwarding.
Invention content
The DNS intelligently parsing methods based on egress network that in order to solve the above technical problem, the present invention provides a kind of, it is special
It is not the intelligently parsing for accessing internet for Intranet user, can make full use of egress network, and is the DNS of Intranet user
Intelligently parsing is asked, fast path analysis result is provided, accelerates the access speed of internet.
The technical scheme is that：A kind of DNS intelligently parsing methods based on egress network, its step are as follows：
Step 1, it is added in DNS service configuration and custom-configures parsing information；
Step 2, intelligently parsing module is added in dns resolution program；
Step 3, when User DN S request datas reach server, according to the information custom-configured, user is solved
Analysis, gets corresponding service provider's IP address, and return to user.
It is described that custom-configure parsing information mainly include the parameter that whether enables of intelligently parsing module and carrier service
Device IP and weights two parts content.
The parsing information that custom-configures can specifically be written as form：
options {
Prosta 1;
DnsIP {8.8.8.8 1;8.8.4.4 3}
}
Wherein, Prosta indicates that intelligently parsing module enables parameter, and 0 indicates to close, and 1 indicates to open；Include fortune in DnsIP
Seek quotient's server ip and its weights.
The intelligently parsing module first determines whether which operator is the IP address of user belong to, if belonging to some operator,
Intelligently parsing module will forward DNS request to be parsed to corresponding operator's server, and be returned the result；If being not belonging to
Some operator, according to the carrier server IP address and weight being arranged in dns server, poll various servers IP lines
DNS request data are sent to carrier server and carry out dns resolution acquisition analysis result, and return to user by road.
It is described to judge that the method for its operator is according to IP address：Dns server is predefined to be equipped with operator
IP address list, each address table correspond to the IP address library of different operators；When the DNS request packet of user reaches intelligently parsing mould
After block, intelligently parsing module is according to the operator address corresponding to the IP address belonging to predefined IP address table search user
Table, judges which operator it belongs to, and DNS request is forwarded to corresponding carrier server and carries out dns resolution, returns
Give user's optimum line DNS.
The beneficial effects of the invention are as follows：It only needs to change domain name dns server for associated server configuration, appoints without adding
What his hardware device, you can realize；Be capable of intelligence selects optimal dns resolution as a result, especially in multi-line to user
Under environment, to substantially increase network access speed；Can open and close freely be configured by user, be completely independent, it is reliable and stable,
Conflict without any with other configurations.The present invention solves the intelligently parsing that Intranet accesses internet, to accelerate the solution of domain name
Speed is analysed, the most fast operator IP of user is returned to, improves the speed of customer access network.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Specific implementation mode
It illustrates with reference to the accompanying drawings and examples of the invention.
A kind of DNS intelligently parsing methods based on egress network, as shown in Figure 1, comprising the steps of：
Step 1, it is added in DNS service configuration and custom-configures parsing code.
Being mainly used for parse when DNS service starts and custom-configuring for parsing code is custom-configured, clothes are made
Business normal work.It custom-configures and mainly whether enables parameter, carrier server IP and weights two including intelligently parsing module
Partial content, concrete configuration file can be written as form：
options {
Prosta 1;
DnsIP {8.8.8.8 1;8.8.4.4 3}
}
Wherein, Prosta indicates that intelligently parsing module enables parameter, and 0 indicates to close, and 1 indicates to open.DnsIP indicates operation
Quotient's server ip, each includes its IP address and weights, how many carrier service IP and weights add up backward.
Step 2, intelligently parsing module is added in dns resolution program.
The priority of intelligently parsing module operation is behind local parsing and caching parsing, as shown in Figure 1, to ensure it
Normal work does not influence the preferential of local parsing and caching parsing, while when local and caching can not inquire just by intelligence
Parsing module is completed.
Step 3, when User DN S request datas reach server, according to the information custom-configured, user is solved
Analysis, gets corresponding service provider's IP address, and return to user.
After DNS request arrives, since the priority of intelligently parsing module operation is parsed less than local parsing and caching, first
It carries out local parsing and caching parses, then carry out intelligently parsing module.
First, dns server receives DNS request data and carries out local parsing, if successfully resolved, returns to analysis result,
And handle next DNS request；If parsing is unsuccessful, carries out the i.e. caching parsing of Cache inquiries and return to parsing if successfully resolved
As a result, and handling next DNS request；If parsing judges whether intelligently parsing module can not open success.
Then, intelligently parsing module judges that it is 0 or 1 to judge whether configured service opens to enable parameter Prosta,
Read carrier server IP address and its weight two parts content therein.Intelligently parsing module is opened if Prosta is 1,
Into rule parsing.
Rule parsing includes two large divisions：Intelligently parsing module first determines whether which operator is the IP address of user belong to,
If belonging to some operator, intelligently parsing module will forward DNS request to be parsed to corresponding operator's server, and obtain
It returns the result；If being not belonging to some operator, according to the carrier server IP address and power being arranged in DNS service configurator
DNS request data are sent to carrier server and carry out dns resolution acquisition parsing knot by weight, poll various servers IP circuits
Fruit, as a result user accesses the server ip address corresponding to domain name, this IP address is parsed to obtain by intelligently parsing module
Best IP address as a result, its IP address is finally returned to user, allow users to access network.
Judge that the method for its operator is according to IP address：DNS systems are predefined operator's IP address row
The common address tables such as table, including unicom address segment table, movable address segment table, cable address segment table, Tie Tong address segment table.User
Oneself address table can be added, each address table corresponds to the IP address library of different operators.When the DNS request packet of user reaches intelligence
After energy parsing module, intelligently parsing module is according to the operation corresponding to the IP address belonging to predefined IP address table search user
Quotient's address table, judges which operator it belongs to, and DNS request is forwarded to corresponding carrier server and carries out DNS solutions
Analysis, returns to the optimum line DNS of user.
When judging IP address operator, original dns resolution judges that IP address operator can only
It is to be judged by known operator IP sections, but the IP of general user is private IP address, it is impossible to complete good
Judge, so the present invention provides customized operator's IP address table, IP address operator address is determined by user, to
Reach the judgement of preferably operator.If User IP is 192.168.0.2, administrator can set this IP to Netcom user,
So judge that this IP for Netcom user, is parsed, and return to knot as the DNS of Netcom in DNS intelligently parsing modules
Fruit.If be not arranged, enter following step.
Secondly, it if can not judge User IP operator, such as 192.168.0.2, is then configured according in step 1
Operator's IP address and weight, poll various servers IP.Existing DNS does poll and searches not weight setting, so will
It can lead to certain circuit flow saturation, and another circuit is very idle, to waste bandwidth, and reduces network and accesses matter
Amount, intelligently parsing module can coordinate weighted value, and dns resolution, which is distributed to different circuits, searches, the power being arranged such as circuit 1
Weight is 3, and the weight that circuit 2 is arranged is 5, then DNS intelligently parsings module will be according to this weighted value, into 30% He of row line 1
The 50% of circuit 2 is forwarded parsing, and returns to analysis result to user, can also be better to reach better bandwidth usage
Improve the analysis mass of user.
Embodiment：
DNS intelligently parsings method based on egress network is as follows to the parsing that domain name is www.baidu.com：
1. configuration custom-configures as follows：
options {
Prosta 1;
DnsIP {8.8.8.8 1;8.8.4.4 3}
}。
The DNS request of 2.www.baidu.com reaches dns resolution server, and in local search and cache inquiries into
Row inquiry, does not find the record of www.baidu.com.
It is 1 due to custom-configuring middle Prosta, then intelligently parsing module is 3. judging whether to enable intelligently parsing service
It opens, then request data can enter intelligently parsing module.
4. judging which operator User IP such as 192.168.3.24 belongs to, result is to be not belonging to any one operator
IP address, that is, some the operator's IP address being not belonging in Netcom, telecommunications, movement, Tie Tong.
5. being 8.8.8.8 and its weight 1 according to the carrier server IP in the custom-configuring of step 1, IP is
8.8.8.4. with its weight 3, find by DNS request be forwarded to IP be 8.8.8.8 server parse.If desired line
The more IP that will go in road is parsed for the server of 8.8.8.4..
6. obtaining analysis result and returning to client.
According to step 2, if inquiring the record of www.baidu.com in local parsing or cache parsings,
3,4,5 steps directly are skipped, 6 is directly reached, analysis result is returned into client.
According to step 4 Netcom/telecommunications is directly forwarded to if client IP is the IP of some operator such as Netcom/telecommunications
It is parsed etc. corresponding operator, then reaches the 6th step and obtain analysis result, and return to client.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of DNS intelligently parsing methods based on egress network, which is characterized in that its step are as follows：
Step 1, it is added in DNS service configuration and custom-configures parsing information；
Step 2, intelligently parsing module is added in DNS analysis programs；
Step 3, when User DN S request datas reach server, according to the information custom-configured, user is parsed,
The addresses corresponding operator IP are got, and return to user；
The parsing information that custom-configures includes the parameter and carrier server IP and power whether intelligently parsing module enables
Value；
The intelligently parsing module first determines whether which operator the addresses IP of user belong to, if belonging to some operator, intelligence
Parsing module will forward DNS requests to be parsed to corresponding carrier server, and be returned the result；If being not belonging to certain
A operator, according to the addresses carrier server IP being arranged in DNS servers and weight, poll various servers IP lines
DNS request datas are sent to carrier server and carry out DNS parsing acquisition analysis results, and return to user by road；
It is described to judge that the method for its operator is according to user's IP address：DNS servers are predefined to be equipped with operator IP
Address list, each address table correspond to the IP address bases of different operators；When the DNS request bags of user reach intelligently parsing mould
After block, intelligently parsing module is according to the operator address corresponding to the addresses IP belonging to predefined IP address table lookups user
Table, judges which operator it belongs to, and DNS requests are forwarded to corresponding carrier server and carry out DNS parsings, returns
Back to user's optimum line DNS.
2. the DNS intelligently parsing methods according to claim 1 based on egress network, which is characterized in that described self-defined
Command Line Parsing information is specifically written as form：
options {
Prosta 1;
DnsIP {8.8.8.8 1;8.8.4.4 3}
}
Wherein, Prosta indicates that intelligently parsing module enables parameter, and 0 indicates to close, and 1 indicates to open；Include fortune in DnsIP
Seek quotient's server ip and its weights.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131068B (en) * | 2016-08-26 | 2019-01-29 | 北京网瑞达科技有限公司 | The system and method that user independently selects domain name system DNS parsing route |
| CN106534396A (en) * | 2016-11-08 | 2017-03-22 | 安徽马钢自动化信息技术有限公司 | Domain name analysis method and analysis system with multiple forwarding servers |
| CN106953941A (en) * | 2017-04-17 | 2017-07-14 | 甘肃省科学技术情报研究所 | A kind of multi-line intelligent DNS resolver and method |
| CN107846483A (en) * | 2017-11-10 | 2018-03-27 | 北京粉笔蓝天科技有限公司 | A kind of domain name analytic method, system and server |
| CN108763396A (en) * | 2018-05-22 | 2018-11-06 | 陆金所（上海）科技服务有限公司 | Access request processing method, device, computer equipment and storage medium |
| CN109905496A (en) * | 2019-02-26 | 2019-06-18 | 上海浪潮云计算服务有限公司 | A kind of DNS intelligent dispatching method based on subscriber policy |
| CN110830309A (en) * | 2019-11-22 | 2020-02-21 | 北京麦哲科技有限公司 | Intelligent distribution device and method for network server |
| CN111988441B (en) * | 2020-07-24 | 2023-05-12 | 下一代互联网关键技术和评测北京市工程研究中心有限公司 | IPv 6-based networking access method and system |
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