CN109451041A - A kind of SSH link connection method, device, equipment and storage medium - Google Patents
A kind of SSH link connection method, device, equipment and storage medium Download PDFInfo
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- CN109451041A CN109451041A CN201811504764.9A CN201811504764A CN109451041A CN 109451041 A CN109451041 A CN 109451041A CN 201811504764 A CN201811504764 A CN 201811504764A CN 109451041 A CN109451041 A CN 109451041A
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- ssh
- link
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- 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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/168—Implementing security features at a particular protocol layer above the transport layer
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of SSH to link connection method, method includes the following steps: receiving the connection request that user links SSH；According to connection request, determines in caching and link corresponding SSH object with the presence or absence of SSH；If it is, SSH in caching is called to link corresponding SSH object response connection request.Using technical solution provided by the embodiment of the present invention, record has some SSH objects in caching, when receiving connection request, exist in the buffer if the SSH to be connected links corresponding SSH object, do not have to then create new SSH link again, server resource is saved, request response time is shortened, improves response speed.The invention also discloses a kind of SSH link attachment device, equipment and storage mediums, have relevant art effect.
Description
Technical field
The present invention relates to computer application technologies, link connection method, device, equipment more particularly to a kind of SSH
And storage medium.
Background technique
With the fast development of computer technology, the application of SSH agreement is also more and more.
SSH is the abbreviation of Secure Shell, by IETF (The Internet Engineering Task Force, state
Border Internet Engineering Task group) network group (Network Working Group) formulated, be built upon application layer basis
On security protocol.It is it is relatively reliable at present, aim at telnet session and other network services and the agreement of safety be provided.Benefit
The information leakage problem in remote management procedures can be effectively prevented with SSH agreement.
Currently, using SSH in Java, packaged frame is usually used, creation SSH link is corresponding when use
SSH object, break link after the completion of use.
The shortcomings that this method is primarily present is, when there is a large number of users to access a certain server, will to generate a large amount of SSH
Link, occupies excessive server resource, so that request response time is longer.
Summary of the invention
The object of the present invention is to provide a kind of SSH linking request method, apparatus, equipment and storage mediums, to avoid occupancy
Excessive server resource reduces request response time.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of SSH link connection method, comprising:
Receive the connection request that user links SSH；
According to the connection request, determines in caching and link corresponding SSH object with the presence or absence of the SSH；
If it is, calling SSH described in the caching to link corresponding SSH object responds the connection request.
In a kind of specific embodiment of the invention, there are the SSH to link corresponding SSH in determining the caching
When object, further includes:
Determine whether the preceding primary connection of the SSH link succeeds；
It is asked if it is, executing SSH described in the calling caching and linking the corresponding SSH object response connection
The step of asking.
In a kind of specific embodiment of the invention, when determining a preceding connection failure for the SSH link, also wrap
It includes:
Obtain the preceding Time To Failure point once connected of the SSH link；
Determine whether duration of the current point in time apart from the Time To Failure point is less than link locking duration；
If it is, returning to link lock state prompt information to the user.
In a kind of specific embodiment of the invention, duration of the current point in time apart from the Time To Failure point is being determined
When locking duration not less than link, further includes:
Execute described the step of calling SSH described in the caching to link the corresponding SSH object response connection request.
In a kind of specific embodiment of the invention, there is no SSH link is corresponding in determining the caching
When SSH object, further includes:
The SSH link is created, the connection request is responded.
In a kind of specific embodiment of the invention, after the creation SSH link, further includes:
The SSH is recorded in the caching and links corresponding SSH object, and major key includes at least IP address, port, user
Name and password.
In a kind of specific embodiment of the invention, after the creation SSH link, further includes:
Determine SSH link whether successful connection；
If it is not, then recording the connection failure time point of the SSH link.
A kind of SSH link attachment device, comprising:
Connection request receiving module, the connection request that SSH is linked for receiving user；
Caching determining module, it is corresponding with the presence or absence of SSH link in caching for determining according to the connection request
SSH object；If it is, trigger request respond module；
The ask respond module responds the company for calling SSH described in the caching to link corresponding SSH object
Connect request.
A kind of SSH link connection equipment, comprising:
Memory, for storing computer program；
Processor realizes the step of the link connection method of SSH described in any of the above-described when for executing the computer program
Suddenly.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of link connection method of SSH described in any of the above-described is realized when computer program is executed by processor.
Using technical solution provided by the embodiment of the present invention, when receiving the connection request that user links SSH, root
According to the connection request, it can determine in caching and link corresponding SSH object with the presence or absence of SSH, if it is present can directly adjust
Corresponding SSH object, which is linked, with SSH in caching responds the connection request.Record has some SSH objects in caching, in the company of receiving
When connecing request, if the SSH to be connected links corresponding SSH object and exists in the buffer, do not have to create new SSH chain again
It connects, saves server resource, shorten request response time, improve response speed.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart that SSH links connection method in the embodiment of the present invention；
Fig. 2 is another implementation flow chart that SSH links connection method in the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of SSH link attachment device in the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of SSH link connection equipment in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It is shown in Figure 1, it is a kind of implementation flow chart of SSH link connection method provided by the embodiment of the present invention, it should
Method may comprise steps of:
S110: the connection request that user links SSH is received.
The embodiment of the present invention is mainly used in the scene that SSH is used in Java.
User can issue the connection request linked to SSH to server according to actual needs.Here user can be
Other servers or client.
After receiving to the connection request of SSH link, the operation of step S120 can be continued to execute.
S120: it according to connection request, determines in caching and links corresponding SSH object with the presence or absence of SSH.
Under Java context, each SSH link can correspond to a SSH object.The connection of SSH link is asked receiving
When asking, it can determine in caching according to the connection request and link corresponding SSH object with the presence or absence of SSH.
In embodiments of the present invention, the information such as IP address, port, user name, password can be carried in connection request.Caching
In for SSH object can above- mentioned information record as major key.By the IP address carried in connection request, port, use
The major key of the SSH object recorded in the information such as name in an account book, password and caching is matched, and can be determined in caching with the presence or absence of SSH
Link corresponding SSH object.
If it is present continuing to execute the operation of step S130.
S130: SSH in caching is called to link corresponding SSH object response connection request.
In the case where linking corresponding SSH object there are SSH in determining caching, SSH link pair in caching can be called
The SSH object answered responds the connection request, links without creating new SSH again.
Using method provided by the embodiment of the present invention, when receiving the connection request that user links SSH, according to this
Connection request can determine in caching and link corresponding SSH object with the presence or absence of SSH, if it is present can call directly slow
It deposits the corresponding SSH object of middle SSH link and responds the connection request.Record has some SSH objects in caching, asks receiving connection
When asking, if the SSH to be connected links corresponding SSH object and exists in the buffer, do not have to create new SSH link, section again
Server resource has been saved, request response time is shortened, has improved response speed.
In a kind of specific embodiment of the invention, when linking corresponding SSH object there are SSH in determining caching,
This method may also comprise the following steps::
Determine whether the preceding primary connection of SSH link succeeds；If so, thening follow the steps the operation of S130.
In practical applications, there may be repeatedly connection for a SSH link.If it fails to connect, can repeat into
Row connection is attempted, and still, is more than preset threshold if number of attempt is excessive, then be may result in user account locking, for a long time
It cannot use.
It in embodiments of the present invention, can further really when linking corresponding SSH object there are SSH in determining caching
Whether the preceding primary connection for determining SSH link succeeds, if it succeeds, not locking risk, then can execute step S130 calling
SSH links the operation of corresponding SSH object response connection request in caching.
In a kind of specific embodiment of the invention, when determining a preceding connection failure for SSH link, this method is also
It may comprise steps of:
Step 1: the preceding Time To Failure point once connected of SSH link is obtained；
Step 2: determine whether duration of the current point in time apart from Time To Failure point is less than link locking duration；If so,
Then follow the steps three；
Step 3: link lock state prompt information is returned to user.
It is illustrated for ease of description, above three step is combined.
When determining a preceding connection failure for SSH link, the preceding mistake once connected of SSH link can be further obtained
Lose time point.The Time To Failure point can be recorded when monitoring that SSH links connection failure.
Duration according to current point in time apart from Time To Failure point, determines whether SSH link is currently in the lock state.Tool
Body, if duration of the current point in time apart from Time To Failure point is less than link locking duration, it can determine that SSH link is current
It is in the lock state, link lock state prompt information can be returned to user, user can be after separated in time again
It is attempted.User can be avoided to cause user account to lock the frequent connection that SSH is linked as far as possible in this way, it is unavailable for a long time
The case where occur.
Link locking duration can be set and be adjusted according to the actual situation, and the embodiment of the present invention is without limitation.
When determining duration of the current point in time apart from Time To Failure point not less than link locking duration, can directly execute
Step S130 calls SSH in caching to link the operation that corresponding SSH object responds connection request.
In one embodiment of the invention, when linking corresponding SSH object there is no SSH in determining caching, the party
Method can with the following steps are included:
SSH link is created, connection request is responded.
In embodiments of the present invention, according to the connection request being currently received, if it is determined that there is no SSH to link in caching
Corresponding SSH object then shows that the connection request may be the request of a new user, did not connect SSH link before.?
In this case, SSH link can be created, responds the connection request, as shown in Figure 1.Specific creation method is the prior art,
The embodiment of the present invention repeats no more this.
After creation SSH link, SSH can also be recorded in the buffer and links corresponding SSH object, major key includes at least
IP address, port, username and password.It, can in the buffer with IP i.e. after creation SSH link response connection request
Location, port, username and password etc. are major key, record the SSH and link corresponding SSH object.So as to the company of receiving again next time
When connecing request, search whether that there are corresponding SSH objects in the buffer, and if so, calling directly to respond connection request.
Creation SSH link after, can also determine SSH link whether successful connection, if it is not, then record SSH link
Connection failure time point.To be based on the connection failure time point, determine when to receive connection request next time
Whether SSH link is in link lock state.The case where avoiding the occurrence of user account locking as far as possible.
Fig. 2 provides a specific implementation process schematic diagram of technical solution by the embodiment of the present invention:
Receive the connection request that user links SSH；
According to the connection request, determines in caching and link corresponding SSH object with the presence or absence of SSH；
If it is present determining whether the preceding primary connection of SSH link succeeds, if it succeeds, calling in caching SSH pairs
As responding connection request, if it fails, the then duration according to current point in time apart from the preceding Time To Failure point once connected, really
Determine whether SSH link locks, if locking, returns to link lock state prompt information to user and called if unlocked
SSH object responds connection request in caching；
If it does not exist, then creation SSH link response connection request, and SSH object is recorded in the buffer, meanwhile, it determines
Whether current connection succeeds, if it is not, then record Time To Failure point, if it is, not doing other operations.
The embodiment of the present invention caches SSH object, creates or records connection failure time point when linking using SSH,
Overtime protection is carried out, can prevent SSH link from unsuccessfully user account being caused to lock.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of SSH to link attachment device, hereafter retouches
A kind of SSH link attachment device stated, which links connection method with a kind of above-described SSH, can correspond to each other reference.
Shown in Figure 3, which includes:
Connection request receiving module 310, the connection request that SSH is linked for receiving user；
Determining module 320 is cached, it is SSH pairs corresponding with the presence or absence of SSH link in caching for determining according to connection request
As；If it is, trigger request respond module 330；
Ask respond module 330, for calling SSH in caching to link corresponding SSH object response connection request.
Using device provided by the embodiment of the present invention, when receiving the connection request that user links SSH, according to this
Connection request can determine in caching and link corresponding SSH object with the presence or absence of SSH, if it is present can call directly slow
It deposits the corresponding SSH object of middle SSH link and responds the connection request.Record has some SSH objects in caching, asks receiving connection
When asking, if the SSH to be connected links corresponding SSH object and exists in the buffer, do not have to create new SSH link, section again
Server resource has been saved, request response time is shortened, has improved response speed.
In a kind of specific embodiment of the invention, further includes successful connection determining module, is used for:
Determine caching in there are SSH link corresponding SSH object when, determine SSH link it is preceding it is primary connection whether at
Function；
The corresponding SSH object response of SSH link in caching is called to connect if it is, trigger request respond module 320 executes
The step of connecing request.
In a kind of specific embodiment of the invention, further includes prompt information return module, is used for:
When determining a preceding connection failure for SSH link, the preceding Time To Failure point once connected of SSH link is obtained；
Determine whether duration of the current point in time apart from Time To Failure point is less than link locking duration；
If it is, returning to link lock state prompt information to user.
In a kind of specific embodiment of the invention, ask respond module is also used to:
When determining duration of the current point in time apart from Time To Failure point not less than link locking duration, executes and call caching
Middle SSH links the step of corresponding SSH object response connection request.
In a kind of specific embodiment of the invention, further includes SSH link creation module, is used for:
When linking corresponding SSH object there is no SSH in determining caching, creation SSH link responds connection request.
In a kind of specific embodiment of the invention, further includes SSH object record module, is used for:
After creation SSH link, SSH is recorded in the buffer and links corresponding SSH object, major key is including at least IP
Location, port, username and password.
In a kind of specific embodiment of the invention, further includes Time To Failure point logging modle, is used for:
Creation SSH link after, determine SSH link whether successful connection；
If it is not, then the connection failure time point of record SSH link.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of SSH to link connection equipment, such as Fig. 4
It is shown, comprising:
Memory 410, for storing computer program；
Processor 420 realizes the step of above-mentioned SSH links connection method when for executing computer program.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of computer readable storage medium, meters
It is stored with computer program on calculation machine readable storage medium storing program for executing, above-mentioned SSH chain is realized when computer program is executed by processor in succession
The step of connecing method.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand technical solution of the present invention and its core concept.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of SSH links connection method characterized by comprising
Receive the connection request that user links SSH；
According to the connection request, determines in caching and link corresponding SSH object with the presence or absence of the SSH；
If it is, calling SSH described in the caching to link corresponding SSH object responds the connection request.
2. the method according to claim 1, wherein there are SSH links to correspond in determining the caching
SSH object when, further includes:
Determine whether the preceding primary connection of the SSH link succeeds；
The connection request is responded if it is, executing SSH described in the calling caching and linking corresponding SSH object
Step.
3. according to the method described in claim 2, it is characterized in that, when determining a preceding connection failure for SSH link,
Further include:
Obtain the preceding Time To Failure point once connected of the SSH link；
Determine whether duration of the current point in time apart from the Time To Failure point is less than link locking duration；
If it is, returning to link lock state prompt information to the user.
4. according to the method described in claim 3, it is characterized in that, determining current point in time apart from the Time To Failure point
When duration is not less than link locking duration, further includes:
Execute described the step of calling SSH described in the caching to link the corresponding SSH object response connection request.
5. according to claim 1 to described in any item methods among 4, which is characterized in that be not present in determining the caching
When the SSH links corresponding SSH object, further includes:
The SSH link is created, the connection request is responded.
6. according to the method described in claim 5, it is characterized in that, after the creation SSH link, further includes:
Record the SSH in the caching and link corresponding SSH object, major key include at least IP address, port, user name and
Password.
7. according to the method described in claim 6, it is characterized in that, after the creation SSH link, further includes:
Determine SSH link whether successful connection；
If it is not, then recording the connection failure time point of the SSH link.
8. a kind of SSH links attachment device characterized by comprising
Connection request receiving module, the connection request that SSH is linked for receiving user；
Determining module is cached, for determining in caching and linking corresponding SSH with the presence or absence of the SSH according to the connection request
Object；If it is, trigger request respond module；
The ask respond module is asked for calling SSH described in the caching to link the corresponding SSH object response connection
It asks.
9. a kind of SSH link connection equipment characterized by comprising
Memory, for storing computer program；
Processor realizes that SSH links connection side as described in any one of claim 1 to 7 when for executing the computer program
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes that SSH links connection method as described in any one of claim 1 to 7 when the computer program is executed by processor
The step of.
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