WO2007142478A1 - System and method for e-mail filtering using grid computing - Google Patents
System and method for e-mail filtering using grid computing Download PDFInfo
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- WO2007142478A1 WO2007142478A1 PCT/KR2007/002764 KR2007002764W WO2007142478A1 WO 2007142478 A1 WO2007142478 A1 WO 2007142478A1 KR 2007002764 W KR2007002764 W KR 2007002764W WO 2007142478 A1 WO2007142478 A1 WO 2007142478A1
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- job
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- servers
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- 238000001914 filtration Methods 0.000 title claims abstract description 210
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 claims description 88
- 241000700605 Viruses Species 0.000 claims description 74
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 1
Classifications
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- G06Q50/60—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/107—Computer-aided management of electronic mailing [e-mailing]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/21—Monitoring or handling of messages
- H04L51/212—Monitoring or handling of messages using filtering or selective blocking
Abstract
A system and method of filtering an e-mail which can dynamically use, for an e-mail filtering job, an e-mail job server required depending on a usage rate of a server from among a plurality of e-mail job servers, thereby maximally using idle resources and efficiently performing the e-mail filtering job.
Description
SYSTEM AND METHOD FOR E-MAIL FILTERING USING GRID
COMPUTING
Technical Field
The present invention relates to an e-mail filtering service and method, and more particularly, to a system and method of filtering e-mail by efficiently using server resources.
Background Art
As a super high-speed Internet network is recently developed, people using the Internet are increased, and an e-mail service of exchanging a message via the Internet is widely popularized. Accordingly, searching for people having no e-mail address is very difficult. As described above, since many people use e-mail, cases of transmitting advertisement information to users by using the e-mail or spreading a virus by using the e-mail are increased.
Accordingly, an e-mail filtering system is introduced so that users using an e- mail service of an Internet portal site may not receive the undesired advertisement information, or may not be infected with the virus, in the Internet portal site providing many users with the e-mail service.
FIG. 1 is a diagram illustrating an e-mail filtering system according to a conventional art. As illustrated in FIG. 1 , the e-mail filtering system according to the conventional art performs an e-mail filtering job by using a plurality of filtering servers 102 connected with an e-mail server 101 in order to filter an e-mail received from the e- mail server 101. Although a separate filtering server is initially not installed, and a filtering module is installed and used in an inside of the e-mail server 101, the separate plurality of filtering servers 102 is installed in order to distribute a load of the e-mail server 101 as users using the e-mail service are increased.
However, since the fixed plurality of filtering servers 102 is used according to the conventional art, it is required to inconveniently and additionally install the plurality of filtering servers 102 when a capacity processed in the plurality of filtering servers 102 performing the e-mail filtering job is exceeded. In particular, a server operator
should check a state of the plurality of filtering servers 102 in order to check whether the installed plurality of filtering servers 102 processes a filtering job currently required to be processed, determine whether to add the plurality of filtering servers 102 depending on the state of the checked plurality of filtering servers 102, and determine how many filtering servers 102 are added when it is determined to add the plurality of filtering servers 102.
Also, since the plurality of filtering servers 102 is fully responsible for only the e-mail filtering job once the plurality of filtering servers 102 is installed, there is a problem that the plurality of filtering servers 102 is left in an idle state and resources cannot be efficiently used when the filtering job is reduced. In particular, since a usage rate of a service is significantly changed depending on a time block in the case of the e- mail service, installing the plurality of filtering servers 102 is required in order to process the e-mail of the time block although a period of time of requiring to filter many e-mails in a lump is very irregular. Accordingly, there is a problem that the installed plurality of filtering servers 102 cannot be used when the e-mail service is rarely used.
Accordingly, when the plurality of filtering servers 102 is dynamically allocated and used for filtering the e-mail, a filtering service is provided by only minimum fixed server resources, and remaining resources may be used for processing another job. Therefore, server resources may be efficiently used. Accordingly, an e-mail filtering service and method which can control a plurality of filtering servers and dynamically allocate an e-mail filtering job to at least one filtering server of the plurality of filtering servers 102 is disclosed in the present specification.
Disclosure of Invention Technical Goals
The present invention provides a system and method of filtering an e-mail which can efficiently use server resources when an e-mail filtering job is processed.
The present invention also provides a system and method of filtering an e-mail which can allocate a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job to each separate job server, thereby efficiently processing an e-mail filtering job.
The present invention also provides a system and method of filtering an e-mail
which enables a plurality of job servers to use an application by eliminating a need for respectively installing the application for a filtering job in the plurality of job servers.
The present invention also provides a system and method of filtering an e-mail which can allocate a filtering job depending on a load of a job server, thereby efficiently distributing the filtering j ob .
Technical solutions
According to an aspect of the present invention, there is provided an e-mail filtering system, the system including: a plurality of job servers, where each of the plurality of job servers performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e-mail, and reports a result of the performed job to an appointed server; and a control server determining the plurality of job servers to enable from among the plurality of job servers, selecting at least one job server from among the enabled plurality of job servers, based on server state information of the enabled plurality of job servers, and allocating a filtering job for the received e-mail to the selected at least one job server.
According to another aspect of the present invention, there is provided an e- mail filtering system, the system including: a transport service module receiving an e- mail; a resource management module managing server state information of a plurality of job servers received from the plurality of job servers; and a job management module determining the plurality of job servers to enable from among the plurality of job servers, selecting at least one job server from among the enabled plurality of job servers, based on the server state information, and allocating a filtering job for the e-mail to the selected at least one job server. According to still another aspect of the present invention, there is provided An e-mail filtering system, the system including: a system state information transmission module transmitting state information of the system to a predetermined control server; and a filtering job performing module performing any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e- mail received from the control server, and reporting a result of the performed job to an appointed server.
According to yet another aspect of the present invention, there is provided an e-
mail filtering method, the method including: receiving an e-mail; managing server state information of a plurality of job servers received from the plurality of job servers; determining the plurality of job servers to enable from among the plurality of job servers; and selecting at least one job server from among the enabled plurality of job servers, based on the server state information, and allocating a filtering job for the e- mail to the selected at least one job server.
Brief Description of Drawings
FIG. 1 is a diagram illustrating an e-mail filtering system according to a conventional art;
FIG. 2 is a diagram illustrating a network configuration of an e-mail filtering system according to an exemplary embodiment of the present invention;
FIG. 3 is a diagram illustrating an internal configuration of an e-mail filtering system according to an exemplary embodiment of the present invention; FIG. 4 is a diagram illustrating an internal configuration of an e-mail filtering system according to another exemplary embodiment of the present invention; and
FIG. 5 is a flowchart illustrating an e-mail filtering method according to an exemplary embodiment of the present invention.
Best Mode for Carrying Out the Invention
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures. FIG. 2 is a diagram illustrating a network configuration of an e-mail filtering system according to an exemplary embodiment of the present invention.
As illustrated in FIG. 2, the e-mail filtering system according to the present exemplary embodiment of the present invention includes a control server 202 receiving an e-mail 201 received from a predetermined e-mail server 204 and controlling a filtering job for the e-mail 201, and a plurality of job servers 203 to which the filtering job is allocated by the control server 202 and by which the filtering job is processed.
The control server 202 determines the plurality of job servers to enable from
among the plurality of job servers, selecting at least one job server from among the enabled plurality of job servers, based on server state information of the enabled plurality of job servers, and allocating a filtering job for the received e-mail to the selected at least one job server. Enabling the plurality of job servers 203 denotes establishing the plurality of job servers 203 so that the plurality of job servers 203 may process the filtering job, and includes installing an application for processing the filtering job in the plurality of job servers 203.
Also, the control server 202 enables the plurality of job servers 203 based on state information of the plurality of job servers 203. When a load of the plurality of job servers 203 is greater than a predetermined maximum value, the filtering job processed by each one of the plurality of job servers 203 is excessive. Accordingly, many pluralities of job servers 203 are enabled and the many pluralities of job servers 203 process the filtering job. Conversely, when the load of the plurality of job servers 203 is less than a predetermined minimum value, the filtering job processed by the plurality of job servers 203 is moderate. Accordingly, since the plurality of job servers 203 is not efficiently used, a portion of the enabled plurality of job servers 203 is disabled and the disabled server may be used for another job, thereby improving a usage efficiency of server resources.
Also, the control server 202 may maintain a predetermined number of job servers of the plurality of job servers 203 in an enabled state. Accordingly, a portion of the plurality of job servers 203 is used for a minimum fixed resource, thereby providing a stable e-mail filtering service.
The plurality of job servers 203 performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e- mail, and reports a result of the performed job to an appointed server. The plurality of job servers 203 performs the filtering job allocated by the control server 202, and the filtering job includes the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job.
The spam e-mail detection job performed by the plurality of job servers 203 is a job of filtering the e-mail including advertisement information which a user does not desire. Also, a spam e-mail may be detected by checking whether a predetermined transmitter is included in a spam e-mail address list, or checking whether a
predetermined keyword is included in the e-mail. Various methods used for detecting the spam e-mail besides the above-described method may be applied, and those skilled in the art of the present invention may apply any method of detecting the spam e-mail to the spam e-mail detection job. The e-mail virus detection job performed by the plurality of job servers 203 is a job of detecting an e-mail virus included in contents of the e-mail and able to infect a terminal of the user checking the e-mail. The e-mail virus detection job may use a conventional method of detecting the e-mail virus as it is, and any method of detecting the e-mail virus may be applied. Also, the attachment file virus detection job is a job of detecting a virus included in an attachment file received with the e-mail and able to infect the terminal of the user opening the attachment file. A conventional virus engine may be used as it is, and any method of detecting the virus of the file may be applied.
Also, the plurality of job servers 203 transmits a result of the performed job to an appointed server. The appointed server may be the job server selected by the control server 202 from among the plurality of job servers 203, and the control server 202 may be the appointed server. After the appointed server receives all results of the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job, the e-mail filtered by any one of three filtering jobs is considered as being filtered, and is stored in a separate recording apparatus without transmitting the e-mail server 204.
FIG. 3 is a diagram illustrating an internal configuration of an e-mail filtering system according to an exemplary embodiment of the present invention. As illustrated in FIG. 3, an e-mail filtering system 302 according to the present exemplary embodiment of the present invention includes a transport service module 310, a resource management module 320, a job management module 330, and an application management module 340. Each component is described in detail below.
The transport service module 310 receives an e-mail 301 via a communication network. The e-mail 301 is an e-mail transmitted to a predetermined e-mail server, and the e-mail server is a server of a site providing a user with an e-mail service and may be a server of a portal site including Naver, Daum, Google, and the like. The transport service module 310 may take the e-mail 301 being transmitted to the e-mail
server and receive the e-mail 301. Also, the transport service module 310 may receive the e-mail 301 from the e-mail server.
An Internet Protocol (IP) address of the e-mail filtering system 302 may be stored in a Domain Name System (DNS) server as an IP address corresponding to Internet address information of the e-mail server as a Uniform Resource Locator (URL) so that the transport service module 310 may accept the e-mail being transmitted to the e-mail server. A DNS is a system for matching Internet address information of a text form with an IP address of a numeral form, and enabling users to find a desired server by merely inputting the Internet address information of the text form eliminating a need for remembering the IP address. Accordingly, when an IP address value of the DNS server is changed, the e-mail filtering system 302 may be connected with the Internet address information of the e-mail server inputted so that the user may transmit the e- mail. Accordingly, when the user transmits the e-mail, the e-mail is transmitted to the e-mail filtering system 302. Also, after the e-mail server receives the e-mail 301, the e-mail 301 transmitted to the e-mail filtering system 302 for the filtering job may be received.
The resource management module 320 manages server state information of a plurality of job servers 303 received from the plurality of job servers 303. The plurality of job servers 303 is a plurality of servers performing the filtering job for the e- mail 301 received by the transport service module 310. Also, the server state information may include a usage rate, a performance, and a capacity of the plurality of job servers 303, and more particularly, a Central Processing Unit (CPU) usage rate, a memory usage rate, a CPU performance, a memory capacity, and the like. The server state information may include any information to ascertain a state of the plurality of job servers 303 besides the above-described usage rate, the performance, and the capacity of the plurality of job servers 303. The resource management module 320 stores, in a predetermined recording apparatus, the server state information of the plurality of job servers 303, and enables the server state information to be checked as required.
The job management module 310 determines the plurality of job servers to enable from among the plurality of job servers 303, selects at least one job server from among the enabled plurality of job servers, based on the server state information managed by the resource management module 320, and allocates a filtering job for the
e-mail to the selected at least one job server. Enabling the plurality of job servers 303 denotes establishing the plurality of job servers 303 so that the plurality of job servers 303 may process the filtering job. The establishing of the plurality of job servers 303 may include installing the application in the plurality of job servers 303 in order to perform the filtering job, and establishing the plurality of job servers 303 in order to communicate with the e-mail filtering system 302, and may denote being recorded in a job server management list in order to be selected when the job management module 330 selects the plurality of job servers 303 performing the e-mail filtering job.
Accordingly, the enabled plurality of job servers 303 may process the filtering job. Since the filtering job is not allocated to the plurality of job servers 303 not enabled by the job management module 330, the plurality of job servers 303 not enabled may process another job other than the filtering job. Also, the job management module 330 disables some job servers when the filtering job is reduced and the filtering job may be processed by a few job servers. Accordingly, the job management module 330 dynamically manages the plurality of job servers 303, thereby enabling server resources to be efficiently used. Disabling the plurality of job servers 303 denotes establishing the plurality of job servers 303 so that the plurality of job servers 303 may not perform the filtering job, and denotes being recorded in the job server management list so that the job management module 330 may not allocate the e-mail filtering job, as opposed to enabling the plurality of job servers 303.
For example, when both the CPU usage rate and the memory usage rate of the plurality of job servers 303 checked by the resource management module 320 are higher than a predetermined value, for example, 90% in a case where the e-mail filtering system 302 includes ten job servers 303 and is performing the e-mail filtering job, the job management module 330 additionally enables five job servers 303 and enables the filtering job to be distributedly processed. Accordingly, since 15 job servers are used for the filtering job, the CPU usage rate and the memory usage rate of the plurality of job servers 303 may be lowered. Also, when both the CPU usage rate and the memory usage rate of the plurality of job servers 303 checked by the resource management module 320 is lower than a predetermined value, for example, 20%, since the filtering job is reduced, the job management module 330 disables five job servers 303. Accordingly, the CPU usage rate and the memory usage rate of remaining ten job
servers are raised, thereby enabling a server to be efficiently used.
The filtering job allocated to the plurality of job servers 303 by the job management module 330 may include a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job. The spam e-mail detection job is a job of detecting the e-mail including advertisement information which a user does not desire. The e-mail virus detection job is a job of detecting an e-mail virus included in contents of the e-mail and able to infect a terminal of the user checking the e-mail. Also, the attachment file virus detection job is a job of detecting a virus included in an attachment file transmitted with the e-mail and able to infect the terminal of the user opening the attachment file. Any method of filtering the e-mail not required to transmit to the user besides the above-described three filtering jobs may be applied to the present invention.
Also, the job management module 330 selects a first job server performing the spam e-mail detection job, a second job server performing the e-mail virus detection job, and a third job server performing the attachment file virus detection job from among the plurality of job servers 303, and allocates the filtering job for the e-mail 301 to the first job server, the second job server, and the third job server. Accordingly, since three e- mail filtering jobs are performed in each separate job server, the three e-mail filtering jobs may be simultaneously performed, and the e-mail filtering job may be quickly processed.
Also, the job management module 330 appoints a fourth job server to report a result of the filtering job to at least one job server to which the filtering job is allocated, and enables the fourth job server to determine whether to pass the e-mail 301, based on the result of the filtering job. When the job management module 330 allocates the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job to each separate server, as described above, the fourth job server receives the result of the job of three job servers to which the three filtering jobs are allocated, and only when the e-mail 301 is passed through all of the three filtering jobs may the fourth job server transmit the e-mail 301 to the e-mail server. The e-mail filtering system 302 may perform a job of processing the e-mail 301 depending on the result of the filtering job as required.
The job management module 330 maintains a predetermined number of job
servers in a constant enabled state. Accordingly, minimum fixed server resources are secured, thereby providing the user with a stable e-mail service. Also, when the at least one job server to which the e-mail filtering job is allocated does not complete the filtering job, the job management module 330 may allocate the filtering job to another ob server. Accordingly, when a predetermined problem is generated in the job server, there is an effect of providing the user with the e-mail filtering service regardless of a state of the job server.
The application management module 340 stores an application performing the filtering job allocated to the plurality of job servers 303 by the job management module 330, and application information related to the application. The application may be a program executed in a computer for performing the filtering job. The application is located in the plurality of job servers 303, and performs the filtering job allocated to the plurality of job servers 303. Also, the application includes a spam e-mail detection application, an e-mail virus detection application, and an attachment file virus detection application depending on a type of the filtering job. Each application is separately managed, and the application required depending on the filtering job, which is performed by each job server, may be installed.
Also, the application information stored by the application management module 340 includes an application identifier, an application version, and information of a location in which the application is stored. The application identifier is an identifier for identifying a type of the application depending on the type of the filtering job, and the application version is a predetermined identifier provided for the application in order to manage the application when the application is updated. Also, the information of the location in which the application is stored includes information of a location of a server which can download the application via a communication network when the plurality of job servers 303 installs the application.
When the plurality of job servers 303 is enabled, the application management module 340 transmits the application information to the enabled plurality of job servers 303, and enables the plurality of job servers 303 receiving the application information to check whether the necessary application is previously installed in the plurality of job servers 303, based on the application identifier and the application version included in the application information. When the application is not installed, the application
management module 340 enables the application to be downloaded by using the information of the location of the application included in the application information. When the plurality of job servers 303 transmits request information of the application in order to download the application, the application management module 340 may receive the request information, and transmit the stored application to the plurality of job servers 303. Accordingly, there is an effect of installing the application in the necessary plurality of job servers 303 and updating the application even though a server manager does not manually install and update the application in each of the plurality of job servers 303. The application management module 340 may transmit the application information to the enabled plurality of job servers 303 when the plurality of job servers 303 is enabled, and may transmit the application information to the plurality of job servers 303 using the application when the application is updated and version information of the application is changed. Also, when updating the application is required, the application may be updated by merely transmitting the application information to the necessary plurality of job servers 303.
FIG. 4 is a diagram illustrating an internal configuration of an e-mail filtering system according to another exemplary embodiment of the present invention. As illustrated in FIG. 4, an e-mail filtering system 402 according to the present exemplary embodiment of the present invention includes a system state information transmission module 410, a filtering job performing module 420, and an application management module 430. Each component is described in detail below.
The system state information transmission module 410 transmits state information of the system to a predetermined control server 401. The state information of the system may include a usage rate of a server in which the e-mail filtering system 402 is operated, and more particularly, a CPU usage rate of the server in which the e-mail filtering system 402 is operated, a memory usage rate, and the like. The server state information may include any information to ascertain a state of a plurality of job servers besides the above-described usage rates. The filtering job performing module 420 performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e-mail received from the control server 401, and reports a result of the performed
job to an appointed server. The filtering job performing module 420 performs any one of three filtering jobs, and reports a result of the three filtering jobs to the appointed server after sequentially performing the three filtering jobs as required.
The spam e-mail detection job performed by the filtering job performing module 420 is a job of filtering the e-mail including advertisement information which a user does not desire. Also, a spam e-mail may be detected by checking whether a predetermined transmitter is included in a spam e-mail address list, or checking whether a predetermined keyword is included in the e-mail. Various methods used for detecting the spam e-mail besides the above-described method may be applied, and those skilled in the art of the present invention may apply any method of detecting the spam e-mail to the spam e-mail detection job.
The e-mail virus detection job performed by the filtering job performing module 420 is a job of detecting an e-mail virus included in contents of the e-mail and able to infect a terminal of the user checking the e-mail. The e-mail virus detection job may use a conventional method of detecting the e-mail virus as it is, and any method of detecting the e-mail virus may be applied. Also, the attachment file virus detection job is a job of detecting a virus included in an attachment file received with the e-mail and able to infect the terminal of the user opening the attachment file. A conventional virus engine may be used as it is, and any method of detecting the virus of the file may be applied.
A predetermined server receiving the result of the filtering job from the filtering job performing module 420 determines whether to transmit the e-mail being an object of the filtering job, based on the result. When three filtering jobs include the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job, only the e-mail passing through all the three filtering jobs is transmitted, and the e-mail not passing through any one of the three filtering jobs is stored in a separate storage apparatus.
The application management module 430 receives, from the control server 401, application information related to the filtering job, and manages an application to process the filtering job based on the application information. The application information includes an application identifier, an application version, and information of a location in which the application is stored. The application identifier is an identifier
for identifying a type of the application depending on the type of the filtering job, and the application version is a predetermined identifier provided for the application in order to manage the application when the application is updated. Also, the information of the location in which the application is stored includes information of a location of a server which can download the application via a communication network when the plurality of job servers installs the application.
When the application corresponding to the application identifier and the application version is not installed in the e-mail filtering system 402, the application management module 430 requests the application corresponding to the application information by using the information of the location in which the application is stored, and downloads and installs the application. Accordingly, the control server can receive the application information and automatically install the application even though the e- mail filtering system 402 does not directly install the application for performing the filtering job. FIG. 5 is a flowchart illustrating an e-mail filtering method according to an exemplary embodiment of the present invention.
In operation S501, an e-mail is received. The e-mail 301 is an e-mail transmitted to a predetermined e-mail server, and the e-mail server is a server of a site providing a user with an e-mail service and may be a server of a portal site including Naver, Daum, Google, and the like. In operation S501, the e-mail being transmitted to the e-mail server may be accepted and received. Also, the e-mail may be received from the e-mail server. A method of changing configuration of a DNS server may be used in order to take the e-mail being transmitted to the e-mail server, and any method easily appreciated by those skilled in the art of the present invention besides the above- described method may be applied.
In operation S502, server state information of a plurality of job servers received from the plurality of job servers is managed. The plurality of job servers is a plurality of job servers performing the filtering job for the e-mail received in operation S501. Also, the server state information may include a usage rate of the plurality of job servers, and more particularly, a CPU usage rate, a memory usage rate, and the like. The server state information may include any information to ascertain a state of the plurality of job servers besides the above-described usage rate. In operation S502, the server state
information of the plurality of job servers is stored in a predetermined recording apparatus, and the server state information is enabled to be checked as required.
In operation S 503, the plurality of job servers to enable from among the plurality of job servers is determined. Enabling the plurality of job servers denotes establishing the plurality of job servers so that the plurality of job servers may process the filtering job. The establishing of the plurality of job servers may include installing the application in the plurality of job servers in order to perform the filtering job, and establishing the plurality of job servers in order to communicate with a server performing the e-mail filtering method, and may denote being recorded in a job server management list in order to be selected when the plurality of job servers performing the e-mail filtering job is selected.
Accordingly, the enabled plurality of job servers may process the filtering job. Since the filtering job is not allocated to the plurality of job servers not enabled by the job management module, the plurality of job servers not enabled may process another job other than the filtering job. Also, some job servers are disabled in operation S503 when the filtering job is reduced and the filtering job may be processed by a few job servers. Accordingly, the plurality of job servers is dynamically managed in operation S503, thereby enabling server resources to be efficiently used. Disabling the plurality of job servers denotes establishing the plurality of job servers so that the plurality of job servers may not perform the filtering job, and denotes being recorded in the job server management list so that the e-mail filtering job may not be allocated, as opposed to enabling the plurality of job servers.
In operation S 504, an application performing the filtering job and application information related to the application are stored and maintained. The application information includes an application identifier, an application version, and information of a location in which the application is stored. The application identifier is an identifier for identifying a type of the application depending on the type of the filtering job, and the application version is a predetermined identifier provided for the application in order to manage the application when the application is updated. Also, the information of the location in which the application is stored includes information of a location of a server which can download the application via a communication network when the plurality of job servers installs the application.
In operation S505, the application information maintained in operation S504 is transmitted to the enabled plurality of job servers. The enabled plurality of job servers is required to perform the filtering job by using the application. Since the enabled plurality of job servers is required to check whether the application is previously installed in the plurality of job servers, the application information is transmitted, and the plurality of job servers is enabled to check whether the application is previously installed in the plurality of job servers.
In operation S506, a request for the application maintained in operation S504 is received from the enabled plurality of job servers. The plurality of job servers checks whether the application related to the application information is installed in the plurality of job servers by using the application information received in operation S505, and when the application is not installed, the plurality of job servers requests the application. Accordingly, the request of the plurality of job servers is received in operation S506.
In operation S507, the application is transmitted to the enabled plurality of job servers in response to the request for the application received in operation S506. When the application is transmitted to the plurality of job servers, the application is installed in the plurality of job servers, and the e-mail filtering job is performed. The application includes a spam e-mail detection application, an e-mail virus detection application, and an attachment file virus detection application depending on a type of the filtering job. The application required depending on the type of the filtering job which the plurality of job servers is required to perform may be installed.
In operation S508, at least one job server is selected from among the enabled plurality of job servers, based on the server state information managed in operation S 502, and the filtering job for the e-mail received in operation S501 is allocated to the selected at least one job server. The filtering job includes the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job, and each job may be allocated to each separate job server. The selected at least one job server to which the filtering job is allocated may perform the filtering job, and transmit a result of the filtering job to an appointed server. The appointed server determines whether to transmit the e-mail received in operation S501, based on the result of the filtering job. When it is determined that the e-mail is transmitted, the received e-mail is transmitted to the e-mail server, and a user may check the e-mail. When it is determined that the e-
mail is not transmitted, the e-mail is separately stored in a separate mail box.
The e-mail filtering method according to the exemplary embodiments of the present invention may be recorded in computer-readable media including program instructions to implement various operations embodied by a computer. The media may also include, alone or in combination with the program instructions, data files, data structures, and the like. The media and program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD ROM disks and DVD; magneto-optical media such as optical disks; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory (ROM), random access memory (RAM), flash memory, and the like. The media may also be a transmission medium such as optical or metallic lines, wave guides, and the like, including a carrier wave transmitting signals specifying the program instructions, data structures, and the like. Examples of program instructions include both machine code, such as produced by a compiler, and files containing higher level code that may be executed by the computer using an interpreter. The described hardware devices may be configured to act as one or more software modules in order to perform the operations of the above-described embodiments of the present invention.
According to the above-described exemplary embodiments of the present invention, a system and method of filtering an e-mail may efficiently use server resources when an e-mail filtering job is processed.
Also, according to the above-described exemplary embodiments of the present invention, a system and method of filtering an e-mail may allocate a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job to each separate job server, thereby efficiently processing an e-mail filtering job.
Also, according to the above-described exemplary embodiments of the present invention, a system and method of filtering an e-mail enables a plurality of job servers to use an application by eliminating a need for respectively installing the application for a filtering job in the plurality of job servers.
Also, according to the above-described exemplary embodiments of the present
invention, a system and method of filtering an e-mail may allocate a filtering job depending on a load of a job server, thereby efficiently distributing the filtering job.
Although a few embodiments of the present invention have been shown and described, the present invention is not limited to the described embodiments. Instead, it would be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An e-mail filtering system, the system comprising: a plurality of job servers, where each of the plurality of job servers performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e-mail, and reports a result of the performed job to an appointed server; and a control server determining the plurality of job servers to enable from among the plurality of job servers, selecting at least one job server from among the enabled plurality of job servers, based on server state information of the enabled plurality of job servers, and allocating a filtering job for the received e-mail to the selected at least one job server.
2. The system of claim 1, wherein the control server selects a first job server performing the spam e-mail detection job, a second job server performing the e-mail virus detection job, and a third job server performing the attachment file virus detection job from among the plurality of job servers, based on the server state information, and allocates the filtering job for the e-mail to the first job server, the second job server, and the third job server.
3. The system of claim 2, wherein the control server appoints a fourth job server to report a result of the filtering job for the e-mail to the first job server, the second job server, and the third job server, and enables the fourth job server to determine whether to pass the e-mail, based on the result of the filtering job received from the first job server, the second job server, and the third job server.
4. The system of claim 1, wherein the control server stores an application performing the filtering job and application information related to the application, transmits the application information to the enabled plurality of job servers, and transmits the application to the enabled plurality of job servers in response to a request for the application when the request for the application is received from the enabled plurality of job servers.
5. The system of claim 1, wherein the control server selects any one of the plurality of job servers, dynamically enables the selected at least one job server, transmits, to the selected at least one job server, any one of a first application performing the spam e-mail detection job, a second application performing the e-mail virus detection job, and a third application performing the attachment file virus detection job, and enables the transmitted application to be installed.
6. An e-mail filtering system, the system comprising: a transport service module receiving an e-mail; a resource management module managing server state information of a plurality of job servers received from the plurality of job servers; and a job management module determining the plurality of job servers to enable from among the plurality of job servers, selecting at least one job server from among the enabled plurality of job servers, based on the server state information, and allocating a filtering job for the e-mail to the selected at least one job server.
7. The system of claim 6, wherein each of the plurality of job servers performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job.
8. The system of claim 7, wherein the job management module selects a first job server performing the spam e-mail detection job, a second job server performing the e- mail virus detection job, and a third job server performing the attachment file virus detection job from among the plurality of job servers, based on the server state information, and allocates the filtering job for the e-mail to the first job server, the second job server, and the third job server.
9. The system of claim 8, wherein the job management module appoints a fourth job server to report a result of the filtering job for the e-mail to the first job server, the second job server, and the third job server, and enables the fourth job server to determine whether to pass the e-mail, based on the result of the filtering job received from the first job server, the second job server, and the third job server.
10. The system of claim 9, wherein when the e-mail is passed through each of the spam e-mail detection job of the first job server, the e-mail virus detection job of the second job server, and the attachment file virus detection job of the third job server, the fourth job server passes the e-mail.
11. The system of claim 6, wherein the job management module maintains a predetermined number of job servers in a constant enabled state.
12. The system of claim 6, wherein when a load of the enabled plurality of job servers referring to the server state information is greater than or equal to a threshold value, the job management module enables another job server and allocates the filtering job to the other job server.
13. The system of claim 6, further comprising: an application management module storing an application performing the filtering job and application information related to the application.
14. The system of claim 13, wherein the application management module transmits the application information to the enabled plurality of job servers, and transmits the application to the enabled plurality of job servers in response to a request for the application when the request for the application is received from the enabled plurality of job servers.
15. The system of claim 13, wherein the application information includes an application identifier, an application version, and information of a location in which the application is stored.
16. An e-mail filtering system, the system comprising: a system state information transmission module transmitting state information of the system to a predetermined control server; and a filtering job performing module performing any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job for an e-mail received from the control server, and reporting a result of the performed job to an appointed server.
17. The system of claim 16, wherein the filtering job performing module performs only one job appointed by the control server from among the spam e-mail detection job, the e-mail virus detection job, and the attachment file virus detection job for the e-mail received from the control server.
18. The system of claim 16, further comprising: an application management module receiving, from the control server, application information related to the filtering job, and managing an application to process the filtering job based on the application information.
19. The system of claim 18, wherein the application information includes an application identifier, an application version, and information of a location in which the application is stored, and when the application corresponding to the application identifier and the application version is not installed in the system, the application management module requests the application corresponding to the application information by using the information of the location in which the application is stored, and downloads and installs the application.
20. An e-mail filtering method, the method comprising: receiving an e-mail; managing server state information of a plurality of job servers received from the plurality of job servers; determining the plurality of job servers to enable from among the plurality of job servers; and selecting at least one job server from among the enabled plurality of job servers, based on the server state information, and allocating a filtering job for the e-mail to the selected at least one job server.
21. The method of claim 20, wherein each of the plurality of job servers performs any one of a spam e-mail detection job, an e-mail virus detection job, and an attachment file virus detection job.
22. The method of claim 21, wherein the selecting and allocating selects a first job server performing the spam e-mail detection job, a second job server performing the e- mail virus detection job, and a third job server performing the attachment file virus detection job from among the plurality of job servers, based on the server state information, and allocates the filtering job for the e-mail to the first job server, the second job server, and the third job server.
23. The method of claim 20, further comprising: storing and maintaining an application performing the filtering job and application information related to the application; transmitting the application information to the enabled plurality of job servers; receiving a request for the application from the enabled plurality of job servers; and transmitting the application to the enabled plurality of job servers in response to the request.
24. A computer-readable recording medium storing a program for implementing the method according to any one of claims 20 through 23.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2006-0052047 | 2006-06-09 | ||
| KR1020060052047A KR100831361B1 (en) | 2006-06-09 | 2006-06-09 | System and method for e-mail filtering using grid computing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007142478A1 true WO2007142478A1 (en) | 2007-12-13 |
Family
ID=38801667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2007/002764 WO2007142478A1 (en) | 2006-06-09 | 2007-06-07 | System and method for e-mail filtering using grid computing |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100831361B1 (en) |
| WO (1) | WO2007142478A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9552478B2 (en) | 2010-05-18 | 2017-01-24 | AO Kaspersky Lab | Team security for portable information devices |
| US9582335B2 (en) | 2011-11-24 | 2017-02-28 | AO Kaspersky Lab | System and method for distributing processing of computer security tasks |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024139A (en) * | 2002-01-28 | 2002-03-29 | 디프소프트 주식회사 | Electronic mail(e-mail) processing system and electronic mail service method |
| KR20020063534A (en) * | 2002-06-25 | 2002-08-03 | 디프소프트 주식회사 | Method for filtering spam mail |
| US20030163540A1 (en) * | 2002-02-27 | 2003-08-28 | Brian Dorricott | Filtering e-mail messages |
-
2006
- 2006-06-09 KR KR1020060052047A patent/KR100831361B1/en not_active IP Right Cessation
-
2007
- 2007-06-07 WO PCT/KR2007/002764 patent/WO2007142478A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024139A (en) * | 2002-01-28 | 2002-03-29 | 디프소프트 주식회사 | Electronic mail(e-mail) processing system and electronic mail service method |
| US20030163540A1 (en) * | 2002-02-27 | 2003-08-28 | Brian Dorricott | Filtering e-mail messages |
| KR20020063534A (en) * | 2002-06-25 | 2002-08-03 | 디프소프트 주식회사 | Method for filtering spam mail |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9552478B2 (en) | 2010-05-18 | 2017-01-24 | AO Kaspersky Lab | Team security for portable information devices |
| US9582335B2 (en) | 2011-11-24 | 2017-02-28 | AO Kaspersky Lab | System and method for distributing processing of computer security tasks |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070117873A (en) | 2007-12-13 |
| KR100831361B1 (en) | 2008-05-21 |
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