CN103634378B - Online time scheduling system and method for virtual servers - Google Patents
Online time scheduling system and method for virtual servers Download PDFInfo
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- CN103634378B CN103634378B CN201310565658.2A CN201310565658A CN103634378B CN 103634378 B CN103634378 B CN 103634378B CN 201310565658 A CN201310565658 A CN 201310565658A CN 103634378 B CN103634378 B CN 103634378B
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Abstract
The invention discloses an online time scheduling system and an online time scheduling method for virtual servers. The system comprises a management module, a timing module and a scheduling module, wherein the management module is used for creating at least two virtual servers, and operating the virtual servers according to a received scheduling instruction; the timing module is used for counting the online time of the virtual servers, and transmitting a scheduling request when the online time reaches an online time threshold value; the scheduling module is used for setting a virtual server scheduling strategy and the online time threshold value, determining the virtual server of which the online time reaches the online time threshold value to be an offline virtual server when the scheduling request is received from the timing module, simultaneously selecting and determining the virtual server consistent with the scheduling strategy to be the virtual server to be online, and transmitting a corresponding scheduling instruction to the management module. According to the system and the method, the time of exposure of the virtual servers on the Internet can be controlled, the probability of effective attacks of hackers to the servers is reduced, and the security of the servers on the Internet is greatly improved.
Description
Technical field
The present invention relates to virtual machine technique field, more particularly to a kind of scheduling system and the side of virtual server line duration
Method.
Background technology
In current cybertimes, computer network security is the theme of network today, with regard to the topic of network security
It is seen everywhere in the media, assault also becomes a great trouble of network security.Hacker attack event is in layer all over the world
Go out not thoroughly, also very extensively, military establishment, political organizations and financial business mechanism all exist the scope of assault object
The row of the target of attack of hacker.
According to the statistics of domestic portion data safety report, only Websites quantity is tampered within the border up in China in 2012
16388, wherein government website 1802 increases by respectively 6.1% and 21.4% on a year-on-year basis.Can see the net of China from statistics
Network safety, is faced with serious threat.And the network security situation of foreign countries similarly allows of no optimist, government organs website, transnational enterprise
Industry website, financial sector etc. are suffered to be spread out of during the message of assault.
In practice, server would generally be exposed in internet up to some months, or even the longer time, and this is just to attack
The person of hitting provides substantial amounts of chance, allows attacker to have time enough to go to break through the various security protections of system, successfully invades mesh
Mark system.
The content of the invention
One of the technical problem to be solved is to need to provide a kind of scheduling system of virtual server line duration
System, it improves the degree of safety of virtual server by the line duration of control virtual server.Additionally, additionally providing a kind of void
Intend the dispatching method of server line duration.
In order to solve above-mentioned technical problem, the invention provides a kind of scheduling system of virtual server line duration, bag
Include：Management module, it is used to create at least two virtual servers on physical server, formulates virtual server list, and
Corresponding virtual server is reached the standard grade according to the dispatch command for receiving and off-line operation；Timing module, it is used for right
The line duration of each virtual server carries out timing, and when the line duration of virtual server reaches line duration threshold value,
Send virtual server dispatch request；Scheduler module, it is used to arrange virtual server scheduling strategy and line duration threshold value, its
When receiving from the virtual server dispatch request of the timing module, line duration is reached into the void of line duration threshold value
Intend server and be defined as wanted offline virtual server, while selecting to meet scheduling strategy from the virtual server list
Virtual server be defined as the virtual server to be reached the standard grade, and send corresponding dispatch command to the management module.
In one embodiment, also include：Synchronization module, its be used for the data in wanted offline virtual server and
Session status is synchronized to in the virtual server to be reached the standard grade for replacing it.
In one embodiment, also include：Forwarding control module, it is used for each on the physical server to operate in
The unified IP address of individual virtual server setting and port, are reached the standard grade with after off-line operation in the management module, will be accessed
The external request of the IP address and port is forwarded to the virtual server newly reached the standard grade.
In one embodiment, the virtual server scheduling strategy be included in all offline virtual servers select from
Line time most long virtual server loads minimum virtual server as the virtual server and permission to be reached the standard grade
Simultaneously online virtual server quantity, wherein, it is described to allow simultaneously online virtual server quantity to be less than physical services
The half of virtual server quantity summation on device.
In one embodiment, the management module by change respective virtual server Microsoft Loopback Adapter state come reality
The offline and operation of reaching the standard grade of the existing virtual server.
In one embodiment, each virtual server has the operating system of different platform, and described each is virtual
Identical WEB application is deployed with server.
According to a further aspect in the invention, a kind of dispatching method of virtual server line duration is additionally provided, including：Pipe
Reason step, creates at least two virtual servers on physical server, formulate virtual server list, and according to receiving
Dispatch command to corresponding virtual server being reached the standard grade and off-line operation；Timed process, exists to each virtual server
The line time carries out timing, and when the line duration of virtual server reaches line duration threshold value, sends virtual server scheduling
Request；Scheduling steps, arrange the line duration threshold value of virtual server scheduling strategy and virtual server, are receiving virtual clothes
During business device dispatch request, the virtual server that line duration reaches line duration threshold value is defined as into wanted offline Virtual Service
Device, while select that the virtual server for meeting scheduling strategy is defined as being reached the standard grade from the virtual server list is virtual
Server, and send corresponding dispatch command.
In one embodiment, also include：Synchronizing step, by data and session shape in wanted offline virtual server
State is synchronized to in the virtual server to be reached the standard grade for replacing it.
In one embodiment, also include：Forwarding rate-determining steps, it is virtual to operate in each on the physical server
Server arranges unified IP address and port, is being reached the standard grade with after off-line operation, will access the IP address and port
External request is forwarded to the virtual server newly reached the standard grade.
In one embodiment, the life cycle of the virtual server is managed, the management includes：Start empty
Intend server, close virtual server, delete virtual server, addition virtual server, update virtual server information, check
Virtual server details, the managed virtual server list of display on virtual machine display console.
Compared with prior art, one or more embodiments of the invention can have the advantage that：
The scheduling system that the present invention passes through virtual server line duration, can be flexible according to the line duration threshold value for arranging
Reaching the standard grade with offline for ground adjustment virtual server, so as to control virtual server exposed time on the internet, and then is reduced
The chance of the effective attack server of hacker, substantially increases degree of safety of the server in internet, and enhances user's body
Test.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realizing and obtain in claim and accompanying drawing.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Apply example to be provided commonly for explaining the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the physical services of the scheduling system for including virtual server line duration according to an embodiment of the invention
The structured flowchart of device；
Fig. 2 is the network connection architecture figure of four virtual servers according to an example of the invention；
Fig. 3 is the flow chart of the dispatching method of virtual server line duration according to another embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, further is made to the present invention below in conjunction with accompanying drawing
Ground is described in detail.
Multiple virtual servers of the present embodiment mainly to operating on physical server are reached the standard grade and offline tune
Degree, as shown in figure 1, the scheduling system 100 of one virtual server line duration in physical server inner setting.
As shown in figure 1, the scheduling system 100 of this virtual server line duration mainly includes management module 10, scheduling
Module 20, synchronization module 30, forwarding control module 40 and timing module 50.
Wherein, management module 10 is used to create at least two virtual servers on physical server, formulates Virtual Service
Device list, and according to the dispatch command for receiving being reached the standard grade to corresponding virtual server and off-line operation.
It should be noted that in virtual machine technique field, install in a virtual machine operating system and WEB service it
Afterwards, the virtual machine can be used as a virtual server.Operating system has been respectively mounted in the virtual machine for creating, and each
Dispose upper required WEB application in operating system respectively, make each virtual machine become the virtual server of the WEB application,
Each virtual machine independently can externally provide WEB service.
Installation operation system and when disposing WEB application, can adopt safe diversification strategy.In the present embodiment, used
Virtual machine be all WEB application virtual server, it is preferable that for different virtual machine server install different platform operation
System, but identical WEB application is all disposed, can so make the work of attacker more complicated, and then virtual clothes can be strengthened
The security of business device.
It is the network connection architecture figure of 4 virtual servers shown in Fig. 2.In this illustration, management module 10 creates 4
Individual virtual server.Shown in Fig. 2 is the network structure of this four virtual servers.In this example, each virtual clothes
Business device at least includes two pieces of Microsoft Loopback Adapters（It is preferred that two pieces of Microsoft Loopback Adapters）.
As shown in Fig. 2 virtual server 1, virtual server 2, virtual server 3 and virtual server 4 include two
Block Microsoft Loopback Adapter, one of Microsoft Loopback Adapter is used to link the inner high speed LAN between virtual machine, another piece of Microsoft Loopback Adapter
For being attached with external network, the inner high speed LAN between virtual machine completely cuts off completely with external network.So can
Strengthen the security of virtual server.
Management module 10 is being received from scheduler module 20（Describe in detail later）Dispatch command after, by change respective virtual
The state of the Microsoft Loopback Adapter of server is realizing the offline of virtual server and reach the standard grade operation.That is, by by the shape of Microsoft Loopback Adapter
State is set on state, then realize reaching the standard grade for virtual server, by the way that the state of Microsoft Loopback Adapter is set to off into closed state, then
Realize the offline of virtual server.
In addition, management module 10 is in addition to carrying out aforesaid operations, also the life cycle of virtual server is managed.
Including：Start virtual server, close virtual server, delete virtual server, addition virtual server, update virtual
Server info, check virtual server details, show on virtual machine display console managed virtual server
List.
For scheduler module 20, it is used to arrange virtual server scheduling strategy and line duration threshold value, is receiving
During the virtual server dispatch request of arrival self clock module 50, line duration is reached into the virtual server of line duration threshold value
It is defined as wanted offline virtual server, while selecting the virtual server for meeting scheduling strategy from virtual server list
It is defined as the virtual server to be reached the standard grade, and sends corresponding dispatch command to management module 10.
Illustrate how to be scheduled with reference to timing module 50.Timing module 50 is to each virtual server
Line duration carries out timing, and the line duration threshold value formulated in the line duration of virtual server reaches scheduler module 20
When, send reaching the standard grade and offline dispatch request for virtual server to scheduler module 20.According to the dispatch request for being received,
The virtual server that line duration reaches line duration threshold value is defined as wanted offline virtual clothes by the one side of scheduler module 20
Business device, on the other hand chooses in the virtual server list from management module 10 and meets the virtual of virtual server scheduling strategy
Server sends dispatch command to notify management module 10 more as the virtual server to be reached the standard grade to management module 10
Change the state of Microsoft Loopback Adapter of virtual server the State Transferring of realizing the offline of virtual server Yu reach the standard grade.
Preferably, above-mentioned scheduling strategy is included in all offline virtual servers and selects the most long virtual clothes of Offtime
Business device loads minimum virtual server as the virtual server to be reached the standard grade and allows simultaneously online Virtual Service
Half of the device quantity less than virtual server quantity summation on physical server.
In detail, the most long virtual server of prioritizing selection Offtime is referred to from all offline virtual servers
It is middle to select time in off-line state most long virtual server, as the virtual server to be reached the standard grade；Preferential choosing
Select the minimum virtual server of load to refer to select to load a minimum virtual clothes from all offline virtual servers
Business device, as the virtual server to be reached the standard grade.
Additionally, scheduler module 20 goes back the on-line time and Offtime of real-time servicing each virtual server, it is ensured that virtual
The server time online every time is less than setting value, and while ensures that there is online virtual server at each moment.
Further, in order to the normal work for ensureing WEB service is not interrupted because of the switching of virtual server, synchronization module
30 need that the data and session status in wanted offline virtual server are synchronized to the void to be reached the standard grade for replacing it
In intending server, so-called session status refer to client and want offline virtual server between foundation session state.
Further, since multiple virtual servers are run on physical server, in order to simplify the complexity of system, forwarding control
Module 40 will access the IP to operate in the unified IP address of each virtual server setting on physical server and port
The external request of address and port is forwarded to the virtual server newly reached the standard grade.That is, if management module 10 has been carried out offline and reached the standard grade
After operation, need to be sent to just offline virtual server A if there is the external request of the access IP address and port, this
When be accomplished by the external request being sent to the virtual server B for replacing virtual server A, so ensure that virtual machine
While security, additionally it is possible to the offer of continual service.
It should be noted that according to self-defining line duration threshold value come schedule virtual server reach the standard grade with offline, can be with
Virtual server exposed time in internet is reduced, so that assault virtual machine is more difficult, clothes is substantially increased
The degree of safety of business device.Such as, if the line duration threshold value of virtual server be set to 1 minute, virtual server reaches the standard grade 1
Minute is just offline so that hacker is attacked the time of only 1 minute；If arranging more virtual server line duration
Short, then the invasion time that hacker to be utilized is just shorter.
From the point of view of another viewpoint, the present invention also proposes a kind of dispatching method of virtual server line duration.Hereinafter tie
Close the scheduling system 100 of the virtual server line duration stated, illustrate each step of the scheduling of virtual server line duration.
Fig. 3 is the flow chart of the dispatching method of virtual server line duration according to another embodiment of the present invention.Please be same
When refer to Fig. 1 and Fig. 3, first as shown in step S310, management module 10 creates at least two on physical server and virtually takes
Business device, and formulates virtual server list, further according to the dispatch command for receiving entering to corresponding virtual server
Row is reached the standard grade and off-line operation.
In addition, management module 10 life cycle of virtual server is managed including：Start virtual server, close
Virtual server, delete virtual server, addition virtual server, update virtual server information, check that virtual server is detailed
Thin information, the managed virtual server list of display on virtual machine display console.
Then, in step s 320, timing module 50 carries out timing to the line duration of each virtual server, and in void
When the line duration for intending server reaches line duration threshold value, to scheduler module 20 virtual server dispatch request is sent.
Then, in step S330, scheduler module 20 arranges virtual server scheduling strategy and line duration threshold value, its
Receive from the virtual server dispatch request of timing module 50 when, line duration is reached into the virtual clothes of line duration threshold value
Business device is defined as wanted offline virtual server, while selecting the virtual clothes for meeting scheduling strategy from virtual server list
Business device is defined as the virtual server to be reached the standard grade, and sends corresponding dispatch command to management module 10.
It is preferred that the virtual server scheduling strategy be included in all offline virtual servers select from
Line time most long virtual server loads minimum virtual server as the virtual server and permission to be reached the standard grade
Half of the simultaneously online virtual server quantity less than virtual server quantity summation on physical server.
Afterwards, as shown in step S340, synchronization module 30 is by the data and session shape in wanted offline virtual server
State is synchronized to in the virtual server to be reached the standard grade for replacing it, so as to ensure the normal work of WEB service not because virtual
The switching of server and interrupt.
Finally, in step S350, control module 40 is forwarded to operate in each the virtual clothes on the physical server
Business device arranges unified IP address and port, and the external request for accessing the IP address and port is forwarded to newly reach the standard grade virtual
Server.
Furthermore it is possible to understand in scheduling 100 initial start of system of virtual server line duration also in compliance with scheduling mould
Virtual server scheduling strategy in block 20.
In sum, the scheduling system that the present embodiment passes through virtual server line duration, can be online according to what is arranged
Time threshold neatly adjust virtual server reach the standard grade with offline, so as to control virtual server it is exposed on the internet when
Between, and then the chance of the effective attack server of reduction hacker, degree of safety of the server in internet is substantially increased, and increase
Strong Consumer's Experience.
The above, only of the invention is embodied as case, and protection scope of the present invention is not limited thereto, any ripe
Those skilled in the art are known in technical specification of the present invention, modifications of the present invention or replacement all should be in the present invention
Protection domain within.
Claims (10)
1. a kind of scheduling system of virtual server line duration, it is characterised in that include：
Management module, it is used to create at least two virtual servers on physical server, formulates virtual server list, and
Corresponding virtual server is reached the standard grade according to the dispatch command for receiving and off-line operation；Wherein, the Virtual Service
Device includes two pieces of Microsoft Loopback Adapters, and one of Microsoft Loopback Adapter connects the virtual of other virtual servers by inner high speed LAN
Network interface card, another piece of Microsoft Loopback Adapter is connected with external network；
Timing module, it is used for the line duration to each virtual server carries out timing, and virtual server it is online when
Between when reaching line duration threshold value, send virtual server dispatch request；
Scheduler module, it is used to arrange virtual server scheduling strategy and line duration threshold value, and it is being received from the meter
When module virtual server dispatch request when, the virtual server that line duration reaches line duration threshold value is defined as wanting
Offline virtual server, while selecting the virtual server for meeting scheduling strategy to be defined as from the virtual server list
The virtual server to be reached the standard grade, and corresponding dispatch command is sent to the management module.
2. scheduling system according to claim 1, it is characterised in that also include：
Synchronization module, it is used to that the data and session status in wanted offline virtual server to be synchronized to for replacing its
In the virtual server to be reached the standard grade.
3. scheduling system according to claim 2, it is characterised in that also include：
Forwarding control module, it is used for each virtual server to operate on the physical server and arranges unified IP ground
Location and port, are reached the standard grade with after off-line operation in the management module, will access the external request of the IP address and port
It is forwarded to the virtual server newly reached the standard grade.
4. scheduling system according to claim 1, it is characterised in that
The virtual server scheduling strategy is included in all offline virtual servers and selects the most long virtual clothes of Offtime
Business device loads minimum virtual server as the virtual server to be reached the standard grade and allows simultaneously online Virtual Service
Device quantity, wherein, it is described to allow simultaneously online virtual server quantity less than virtual server quantity on physical server
The half of summation.
5. the scheduling system according to any one of claim 1-4, it is characterised in that
The management module realizes the virtual server by the state of the Microsoft Loopback Adapter of change respective virtual server
Offline with operation of reaching the standard grade.
6. scheduling system according to claim 5, it is characterised in that
Each virtual server has in the operating system of different platform, and described each virtual server and is deployed with identical
WEB application.
7. a kind of dispatching method of virtual server line duration, it is characterised in that include：
Management process, creates at least two virtual servers on physical server, formulates virtual server list, and according to connecing
The dispatch command for receiving to corresponding virtual server being reached the standard grade and off-line operation；Wherein, the virtual server includes
Two pieces of Microsoft Loopback Adapters, one of Microsoft Loopback Adapter connects the Microsoft Loopback Adapter of other virtual servers by inner high speed LAN,
Another piece of Microsoft Loopback Adapter is connected with external network；
Timed process, to the line duration of each virtual server timing is carried out, and the line duration in virtual server reaches
During line duration threshold value, virtual server dispatch request is sent；
Scheduling steps, arrange the line duration threshold value of virtual server scheduling strategy and virtual server, are receiving virtual clothes
During business device dispatch request, the virtual server that line duration reaches line duration threshold value is defined as into wanted offline Virtual Service
Device, while select that the virtual server for meeting scheduling strategy is defined as being reached the standard grade from the virtual server list is virtual
Server, and send corresponding dispatch command.
8. dispatching method according to claim 7, it is characterised in that also include：
Synchronizing step, the data and session status in offline virtual server are synchronized to for replacing wanting for it
In the virtual server of line.
9. dispatching method according to claim 7, it is characterised in that also include：
Forwarding rate-determining steps, to operate in the unified IP address of each virtual server setting on the physical server and end
Mouthful, being reached the standard grade and after off-line operation, the external request for accessing the IP address and port is forwarded to newly reach the standard grade virtual
Server.
10. the dispatching method according to any one of claim 7-9, it is characterised in that the life to the virtual server
Cycle is managed, and the management includes：Start virtual server, close virtual server, delete virtual server, addition void
Intend server, update virtual server information, check virtual server details, show on virtual machine display console institute
The virtual server list of management.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383688A (en) * | 2007-09-06 | 2009-03-11 | 凹凸科技（中国）有限公司 | Data communication device and method for keeping high availability of data communication device |
| CN101778091A (en) * | 2009-01-08 | 2010-07-14 | 王垒 | Expandable security server alternate system |
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| US20070094659A1 (en) * | 2005-07-18 | 2007-04-26 | Dell Products L.P. | System and method for recovering from a failure of a virtual machine |
| US8140668B2 (en) * | 2009-06-24 | 2012-03-20 | Red Hat Israel, Ltd. | Pre-scheduling the timelines of virtual machines |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383688A (en) * | 2007-09-06 | 2009-03-11 | 凹凸科技（中国）有限公司 | Data communication device and method for keeping high availability of data communication device |
| CN101778091A (en) * | 2009-01-08 | 2010-07-14 | 王垒 | Expandable security server alternate system |
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