CN105208073B - A kind of dynamic Telnet management methods - Google Patents
A kind of dynamic Telnet management methods Download PDFInfo
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- CN105208073B CN105208073B CN201510483813.5A CN201510483813A CN105208073B CN 105208073 B CN105208073 B CN 105208073B CN 201510483813 A CN201510483813 A CN 201510483813A CN 105208073 B CN105208073 B CN 105208073B
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- telnet
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- gateway device
- wireless gateway
- usage scenarios
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- 238000007726 management method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
Abstract
The present invention provides a kind of dynamic Telnet management methods, and applied in the wireless gateway device with Telnet functions, methods described includes：It is set forth in the wireless gateway device and establishes Telnet usage scenarios；During the wireless gateway device work, the Telnet functions are turned off or on according to the residing Telnet usage scenarios；The Telnet usage scenarios include factory mode and factory mode/user model；And the Telnet usage scenarios, when being the factory mode, the wireless gateway device opens the Telnet functions；When the Telnet usage scenarios are the factory mode/user model, the wireless gateway device closes the Telnet functions.Practical application scene of the invention based on current device, dynamically can manage and control Telnet functions；Both Telnet functions can have been met under special scenes to configure device requirement, while also evaded and the risk that Telnet is brought is opened under special scenes.
Description
Technical field
The present invention relates to gateway device management domain, more particularly to a kind of dynamic Telnet management methods.
Background technology
Telnet agreements are a member in TCP/IP protocol suite, are standard agreement and the master of Internet telnet services
Want mode.It has provided the user the ability for completing distance host work on the local computer.In the computer of terminal user
It is upper to use telnet programs, it is connected to server with it.Terminal user can input order in telnet programs, these lives
Order can be run on the server, just as being inputted directly on the console of server.Just service can be controlled local
Device.Start a telnet session, it is necessary to input username and password and carry out login service device.
Iptables is the IP packet filtration systems integrated with 3.5 newest version linux kernels.If Linux systems
System is connected to internet or LAN, server or connection LAN and the proxy server of internet, then the system is advantageous in Linux
IP packet filtrations and firewall configuration are better controled in system.
When making packet filtration decision, by a set of rule for following and forming, these rules are stored in special fire wall
Packet filtration table in, and these tables are integrated in linux kernel.In packet filtration table, rule, which is grouped, is placed on me
In so-called chain (chain).And netfilter/iptables IP packet filtration systems are a powerful works
Tool, available for adding, edit and remove rule.
Traditional equipment does not carry out scene differentiation to Telnet function, is typically only capable to meet a kind of the needs of scene,
The mode of its operation and administrative telnet function is entered using the mode of operation telnet process by administrative telnet in addition
Journey carrys out administrative telnet function, and this mode can bring certain burden to system, and have certain error, under some systems simultaneously
It can not come into force in time, it is necessary to which system is restarted.
The content of the invention
In view of the above problems, the application describes a kind of dynamic Telnet management methods, applied to Telnet functions
Wireless gateway device in, methods described includes：
It is set forth in the wireless gateway device and establishes Telnet usage scenarios；
During wireless gateway device work, turned off or on according to the residing Telnet usage scenarios described in
Telnet functions.
Preferably, the Telnet usage scenarios include factory mode and factory mode/user model；And
When the Telnet usage scenarios are the factory mode, the wireless gateway device opens the Telnet work(
Energy；
When the Telnet usage scenarios are the factory mode/user model, described in the wireless gateway device closing
Telnet functions.
Preferably, under the different Telnet usage scenarios, the wireless parameter in wireless driver module is different；The nothing
Line gateway device to the wireless parameter by being detected so as to judging the current Telnet usage scenarios.
Preferably, Telnet functions are realized by iptables orders.
Preferably, after establishing the different Telnet usage scenarios in the wireless gateway device, different is described
Telnet usage scenarios correspond to the different parameter value of key variables.
Preferably, when the parameter value is " close ", the wireless gateway device closes Telnet functions；When described
Parameter value is " open ", and the wireless gateway device opens Telnet functions.
Above-mentioned technical proposal has the following advantages that or beneficial effect：Practical application scene of the invention based on current device,
It dynamically can manage and control Telnet functions；Both Telnet functions can have been met under special scenes to configure device requirement, together
When also evaded the risks brought of Telnet opened under special scenes；The present invention has abandoned the side of traditional operation telnet process
Formula, reduce the system complexity of administrative telnet function；The iptabels modes of use carry out administrative telnet function, can and
Shi Shengxiao, and it is more safe and reliable.
Brief description of the drawings
With reference to appended accompanying drawing, more fully to describe embodiments of the invention.However, appended accompanying drawing be merely to illustrate and
Illustrate, and be not meant to limit the scope of the invention.
Fig. 1 is a kind of flow chart one of dynamic Telnet management methods of the present invention；
Fig. 2 is a kind of flowchart 2 of dynamic Telnet management methods of the present invention；
Fig. 3 is the flow chart of Telnet remote login services in a kind of dynamic Telnet management methods of the present invention.
Embodiment
Dynamic Telnet management methods of the present invention are described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of dynamic Telnet management methods, including：
Establish different Telnet usage scenarios；
Define the key variables of administrative telnet function；
Telnet functions are realized by iptables orders.
Specifically, the Telnet usage scenarios include two kinds, respectively factory mode and factory mode or user's mould
Formula.As shown in Fig. 2 wireless gateway device judges the radio network gateway by analyzing the wireless parameter of wireless driver module offer
Telnet usage scenarios where equipment, i.e., wireless parameter corresponding to different scene modes are different.Under factory mode, open
Telnet functions；Under factory mode or user model, Telnet functions are closed.
In traditional embedded gateway equipment, the usage scenario of Telnet functions is not distinguished, thus can not be by sentencing
Disconnected scene carrys out administrative telnet function.And in the present invention, the usage scenario of Telnet functions is divided into two kinds：Factory mode
With factory mode or user model.This mode causes Telnet functions to disclosure satisfy that several scenes demand, solves original
The defects of Telnet functions are merely able to meet a kind of usage scenario.Meanwhile after usage scenario change, Telnet functional statuses can
To change therewith, flexibility and the reliability of system are improved.
After the usage scenario of Telnet functions has been set, show to be currently needed for Telnet by defining key variables
The operation mark that function is carried out, specific key variables are：gTelnetAction.The value and mark of the key variables are such as
Under：
" close " closes Telnet functions
" open " opens Telnet functions
When equipment is under different usage scenarios, the key variables can be endowed difference with the difference of scene
Parameter value, the Telnet work(conversion of energy is realized by the parameter value.
In the present invention, Telnet functions are realized by iptables orders.Specifically, Telnet functions are being realized
When, traditional channel judgement and switchover policy are not only applied, while add a kind of customizable strategy.
Specifically, after usage scenario key variables are defined, abandoning tradition passes through Telnet in modification system
The mode of process, using it is more efficient, reliable, come into force immediately by the way of come administrative telnet function, that is, pass through change
Iptables orders control and administrative telnet function to realize.Specific implementation is as follows：
Judge gTelnetAction value, if open, then open Telnet functions, order is as follows：
iptables-I IPFLTIN-p TCP--dport 23-j ACCEPT
If close, then Telnet functions are closed, specific instructions are as follows：
iptables-I IPFLTIN-p TCP--dport 23-j DROP
As shown in figure 3, after the wireless gateway device detects that the Telnet functions are in factory mode, Telnet
The step of remote login service, includes：
Local established with distance host connects；
The user name and password inputted on local terminal and any order inputted later or character are sent to long-range master
Machine；
The data that distance host exports are converted into the data of the local form received, and send local terminal back to；
Local interrupt carries out revocation connection to distance host.
Specifically, the process for connection being established in local and distance host is actually to establish a TCP connection, Yong Hubi
The IP address or domain name of notice road distance host.An IP packet is gathered into the user name and password locally inputted in interruption,
The IP packets are sent to distance host.During sending the data that distance host exports back to local interrupt, the number
According to including input order echo and command execution results.
Practical application scene of the invention based on current device, dynamically can manage and control Telnet functions；Both can be with
Meet under special scenes Telnet functions to configure device requirement, while also evaded and opened what Telnet was brought under special scenes
Risk；The present invention has abandoned the mode of traditional operation telnet process, reduces the system complexity of administrative telnet function；
The iptabels modes of use carry out administrative telnet function, can come into force in time, and more safe and reliable.
For a person skilled in the art, after reading described above, various changes and modifications undoubtedly will be evident.
Therefore, appended claims should regard whole variations and modifications of the true intention and scope that cover the present invention as.Weighing
Any and all scope and content of equal value, are all considered as still belonging to the intent and scope of the invention in the range of sharp claim.
Claims (6)
- A kind of 1. dynamic Telnet management methods, it is characterised in that applied in the wireless gateway device with Telnet functions, Methods described includes：Telnet usage scenarios are established in the wireless gateway device；During the wireless gateway device work, the Telnet is turned off or on according to the residing Telnet usage scenarios Function.
- 2. dynamic Telnet management methods according to claim 1, it is characterised in that in methods described：The Telnet usage scenarios include factory mode, factory mode and user model；AndWhen the Telnet usage scenarios are the factory mode, the wireless gateway device opens the Telnet functions；When the Telnet usage scenarios are the factory mode/user model, described in the wireless gateway device closing Telnet functions.
- 3. dynamic Telnet management methods according to claim 1, it is characterised in that in methods described：Under the different Telnet usage scenarios, the wireless parameter in wireless driver module is different；AndThe wireless gateway device to the wireless parameter by being detected so as to judging that the current Telnet uses field Scape.
- 4. dynamic Telnet management methods according to claim 3, it is characterised in that in methods described：The Telnet functions are realized by iptables orders.
- 5. dynamic Telnet management methods according to claim 4, it is characterised in that in methods described：After the different Telnet usage scenarios are established in the wireless gateway device, the different Telnet uses field Scape corresponds to the different parameter value of key variables.
- 6. dynamic Telnet management methods according to claim 5, it is characterised in that in methods described：If the parameter value is " close ", the wireless gateway device closes the Telnet functions；If the parameter value is " open ", then the wireless gateway device open the Telnet functions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510483813.5A CN105208073B (en) | 2015-08-07 | 2015-08-07 | A kind of dynamic Telnet management methods |
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| CN201510483813.5A CN105208073B (en) | 2015-08-07 | 2015-08-07 | A kind of dynamic Telnet management methods |
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| CN105208073A CN105208073A (en) | 2015-12-30 |
| CN105208073B true CN105208073B (en) | 2018-02-13 |
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| CN110208632A (en) * | 2019-07-09 | 2019-09-06 | 深圳创维数字技术有限公司 | A kind of method, system and storage medium for electromagnetic compatibility testing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104497A (en) * | 2011-01-14 | 2011-06-22 | 中国人民解放军信息工程大学 | Automatic telnet session method for reconfigurable router management |
| CN102984075A (en) * | 2012-12-17 | 2013-03-20 | 重庆邮电大学 | Programmable router based on NetFPGA |
| CN103746908A (en) * | 2013-12-31 | 2014-04-23 | 上海斐讯数据通信技术有限公司 | Wireless gateway equipment and work pattern selection method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2843847B1 (en) * | 2002-08-26 | 2004-11-19 | At & T Corp | SYSTEM FOR ESTABLISHING A TELNET CONNECTION WITH A REMOTE MODEM-FREE DEVICE |
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2015
- 2015-08-07 CN CN201510483813.5A patent/CN105208073B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104497A (en) * | 2011-01-14 | 2011-06-22 | 中国人民解放军信息工程大学 | Automatic telnet session method for reconfigurable router management |
| CN102984075A (en) * | 2012-12-17 | 2013-03-20 | 重庆邮电大学 | Programmable router based on NetFPGA |
| CN103746908A (en) * | 2013-12-31 | 2014-04-23 | 上海斐讯数据通信技术有限公司 | Wireless gateway equipment and work pattern selection method thereof |
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Denomination of invention: A Dynamic Telnet Management Method Effective date of registration: 20221204 Granted publication date: 20180213 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Huzhou YingLie Intellectual Property Operation Co.,Ltd. Registration number: Y2022330003403 |
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