CN107920140A - One kind combats a natural disaster to become campus network DNS devices - Google Patents
One kind combats a natural disaster to become campus network DNS devices Download PDFInfo
- Publication number
- CN107920140A CN107920140A CN201810010067.1A CN201810010067A CN107920140A CN 107920140 A CN107920140 A CN 107920140A CN 201810010067 A CN201810010067 A CN 201810010067A CN 107920140 A CN107920140 A CN 107920140A
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- network
- network interface
- dns
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- education
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Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000013507 mapping Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/72—Routing based on the source address
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Combat a natural disaster to become campus network DNS devices the invention discloses one kind.When the education network egress line of campus network export breaks down, the data flow of the campus network DNS of education network mandate will interrupt, and cause campus network DNS to be parsed to domain name addresses outside school, influence access of the campus user to website outside school.Described device mainly includes network interface 1, network interface 2, detecting network interface, control processor and information exchange network interface.Combat a natural disaster to become DNS devices by design, when education network egress line breaks down, automatically switch to DNS catastrophe operating modes, in this mode, according to source address routing policy, campus network DNS is remapped to calamity for domain name mapping is carried out on dns address, solve the problems, such as that colleges and universities, since the campus user that education network egress line failure triggers can not use campus network dns resolution site resource outside school, improve anti-accident ability during campus network DNS deployment when disposing the campus network DNS of education network mandate.
Description
Technical field
Combat a natural disaster to become campus network DNS devices the present invention relates to one kind, which is related to source address route technology and SNMP technologies.
Background technology
DNS (Domain Name System) domain name analysis system, is mainly used for solving Web site www nets in internet
The problem of location IP address corresponding with its matches, is one of basal core service of internet.Chinese education and scientific research computer
Net (abbreviation education network) is China's investment construction, is managed by the Ministry of Education, and the whole nation that construction and operation are undertaken by the colleges and universities that take the lead is academic
Computer interconnected network.During Construction of University campus network, it will usually which selection provides domain name by the campus network DNS of education network mandate
Analysis service, is flowed out and flowed into from education network egress line by the campus network DNS data stream acquiescence of education network mandate.In education network
When catastrophe occurs in egress line, the DNS data stream of mandate will interrupt, and cause campus network DNS cannot be to domain name addresses outside school
Parsed, influence access of the campus user to user outside school.
In order to solve the campus user that the campus network DNS of University Education net mandate triggers due to the catastrophe of education network egress line
Can not use campus network dns resolution outside school site resource the problem of.Devise one kind to combat a natural disaster to become campus network DNS devices, improve
Anti-accident ability when campus network DNS is disposed.
The content of the invention
Combat a natural disaster to become campus network DNS devices it is an object of the invention to provide one kind, the present invention can be solved effectively by teaching
The campus network DNS that net authorizes is educated, when catastrophe occurs in education network egress line, campus user can not parse asking for resource outside school
Topic, greatly improves the availability and anti-accident ability of campus network DNS, good guarantor is provided for the stable operation of campus network
Card.
To achieve the above object, the technical scheme is that：One kind combats a natural disaster to become campus network DNS devices, including the first net
Mouth, the second network interface, detecting network interface, control processor and information exchange network interface.The input of first network interface and control processor
Output is connected, the data exchange being used for realization between control processor；The input of second network interface and control processor
Output is connected, the data exchange being used for realization between control processor；Described information exchange network interface is defeated with the second network interface
Enter output to be connected, the data exchange being used for realization between the second network interface；The detecting network interface inputs defeated with control processor
Go out to be connected, for detecting education network egress line state；The detecting network interface is connected with the input and output of information exchange network interface
Connect, the data exchange being used for realization between information exchange network interface；The control processor and the first network interface, the second network interface and detect
The input and output of survey grid mouth are connected, and combat a natural disaster to become DNS lists for providing when catastrophe occurs for education network, replace original education network
DNS is authorized, ensures the normal network service of user.
Further, device according to the present invention, first network interface includes 1 DNS and accesses gigabit network interface, described
Second network interface includes 1 gigabit and exports the output that network interface is used for DNS data, and the detecting module is used for including 1 gigabit network interface
Access campus network is detected education network discharge state, and obtained detection state output is to control processor, at control
Reason device be used to analyzing and processing education network under normal circumstances with the trend of DNS data stream under catastrophic condition and to automatically update calamity standby
The data source of dns address.
Further, device according to the present invention, the detecting network interface are connected with information exchange network interface, are used for realization
The data exchange of education network discharge state Data Detection；Second network interface is connected with information exchange network interface, is used for realization each other
Between DNS data exchange.
The beneficial effect that the present invention reaches：Combat a natural disaster to become campus network DNS devices by design, when education network egress line occurs
During catastrophe, DNS catastrophe operating modes are automatically switched to, in this mode, according to source address routing policy, by campus network DNS weights
New mappings, for domain name mapping is carried out on dns address, this addresses the problem when catastrophe occurs in education network egress line, are educated to calamity
The problem of campus network DNS that net authorizes can not carry out address resolution.
Brief description of the drawings
Fig. 1 is to combat a natural disaster to become campus network DNS device connection figures.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention will be further described in detail
1. the first network interface (101), including 1 DNS access gigabit network interface, for the transmitted in both directions to DNS data；Using
SFP-GE-T gigabit power port SFP modules, SFP-GE-T gigabit power port SFP module dissipations are low, performance is stablized, and transmission rate is up to
1.25G b/s。
2. network interface (102) is detected, including a network interface with control process chip, for detecting circuit working status,
Give the state output that detection obtains to control processor (103)；Using TCP232-T modules, TCP232-T modules support serial ports to match somebody with somebody
Put and netconfig function, network interface have adaptive ability.
3. control processor (103), is responsible for carrying out the information of network interface 1 (101), network interface 2 (104), detecting network interface (102)
Processing, provides when catastrophe occurs and combats a natural disaster to become DNS lists, replace original education network mandate DNS, ensures that the normal network of user leads to
Letter；Model IBM X3650M4 selected by control processor, system are compiled support network readezvous point bridge joint, SNMP, IPTABLES
Linux, the linux kernel version that uses is 2.4.31 in the present invention.Program is set with linux timed tasks (crontab)
It is set to detection in every 2 minutes once, ensures the availability of DNS.
4. the second network interface (104), including 1 gigabit output network interface, the two-way biography for the DNS data between interchanger
It is defeated；Using RJ45 interfaces.
5. information exchange network interface (105), including two gigabit network interfaces, a network interface is used between detecting network interface (102)
Carry out data exchange；Another network interface is used for the transmission that information is completed between network interface 2 (104).Using RJ45 double nips.
The present invention is solved when catastrophe occurs in education network egress line, and campus user can not parse site resource outside school
Problem, on the one hand improves the anti-accident ability of campus network DNS, and the on the other hand stable operation for campus network provides guarantee.
Claims (3)
1. one kind combats a natural disaster to become campus network DNS devices, described device mainly includes：First network interface, the second network interface, detecting network interface, control
Processor processed and information exchange network interface.First network interface is connected with the input and output of control processor, is used for realization and controls
Data exchange between processor processed；Second network interface is connected with the input and output of control processor, is used for realization and controls
Data exchange between processor processed；Described information exchange network interface be connected with the input and output of the second network interface, be used for realization and
Data exchange between second network interface；The detecting network interface is connected with control processor input and output, for detecting education network
Egress line state；The detecting network interface is connected with the input and output of information exchange network interface, is used for realization and message switching network
Data exchange between mouthful；The control processor is connected with the input and output of the first network interface, the second network interface and detecting network interface,
Combat a natural disaster to become DNS lists for providing when catastrophe occurs for education network egress line, replace original education network mandate DNS, ensure to use
The normal network service in family.
2. device as claimed in claim 1, it is characterised in that：First network interface includes 1 DNS and accesses gigabit network interface, and described the
Two network interfaces include 1 gigabit and export the output that network interface is used for DNS data, and the detecting module includes 1 gigabit network interface and is used to connect
Enter campus network to be detected education network discharge state, obtained detection state output is to control processor, control process
Device be used to analyzing and processing education network egress line under normal circumstances with the trend of DNS data stream under catastrophic condition and automatically update
Calamity for dns address data source.
3. device as claimed in claim 1, it is characterised in that：The detecting network interface is connected with information exchange network interface, for reality
The data exchange of existing education network discharge state Data Detection；Second network interface is connected with information exchange network interface, is used for realization that
The data exchange of DNS around here.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010067.1A CN107920140A (en) | 2018-01-05 | 2018-01-05 | One kind combats a natural disaster to become campus network DNS devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010067.1A CN107920140A (en) | 2018-01-05 | 2018-01-05 | One kind combats a natural disaster to become campus network DNS devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107920140A true CN107920140A (en) | 2018-04-17 |
Family
ID=61894539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810010067.1A Pending CN107920140A (en) | 2018-01-05 | 2018-01-05 | One kind combats a natural disaster to become campus network DNS devices |
Country Status (1)
| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825778A (en) * | 2014-02-19 | 2014-05-28 | 互联网域名系统北京市工程研究中心有限公司 | DNS downtime detection switching method and system based on cloud detection |
| CN104468244A (en) * | 2014-12-31 | 2015-03-25 | 北京奇虎科技有限公司 | Domain name resolution system disaster recovery construction method and device |
| US20170048187A1 (en) * | 2014-04-18 | 2017-02-16 | Beijing Qihoo Technology Company Limited | Dns security system and failure processing method |
-
2018
- 2018-01-05 CN CN201810010067.1A patent/CN107920140A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825778A (en) * | 2014-02-19 | 2014-05-28 | 互联网域名系统北京市工程研究中心有限公司 | DNS downtime detection switching method and system based on cloud detection |
| US20170048187A1 (en) * | 2014-04-18 | 2017-02-16 | Beijing Qihoo Technology Company Limited | Dns security system and failure processing method |
| CN104468244A (en) * | 2014-12-31 | 2015-03-25 | 北京奇虎科技有限公司 | Domain name resolution system disaster recovery construction method and device |
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Application publication date: 20180417 |
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