International Business Machines Corporation

Robert F Pryor

Thomas Edward Cooper

John B Simmons

Daniel Allen Campbell

Marc Lawrence Steinbrecher

Hudson Wayne Philips

Grant Douglas Miller

Sandra K Johnson

Gerald W Baumann

Jagdish Mooljee Nagda

Edward J Grenchus, Jr

Michael R Headrick

John D Chontos

Robert C Brannan

David P Kolsna

Robert J Fogoros

Ainis Krumins

Hudson Wayne Phillips

A method and system of managing downloads of a file from a server. A number of current connections between a client and the server is determined to be at least a preset threshold number of allowable concurrent connections between the server and the client and in response, a request by the client to download the file from the server using another connection between the client and the server is denied. After the request is denied, the number of current connections between the client and the server is determined to be less than the preset threshold number after which the other connection between the client and the server is established and the file is downloaded to the client via the other connection. The preset threshold number of allowable concurrent connections is automatically changed based on a total number of active current connections between server and both the client and other clients.

Managing download requests received to download files from a server

A method and system of managing downloads of a file from a server. A determination is made of whether or not a number of current connections between a client and the server is less than a preset threshold number, exceeding one, of allowable concurrent connections with the server. If the determination is that the number of current connections is less than the preset threshold number, responsive to a request by the client to download the file pursuant to another connection between the client and the server, the computer establishes the other connection between the client and the server and downloads the file to the client via the other connection. If the determination is that the number of current connections is at least the preset threshold number, the computer denies a request by the client to download the file from the server using another connection between the client and the server.

A method and system for managing download of a file. In response to a request from a client computer to establish a session to download the file beginning at a specified location after a start of the file, an estimated length of a portion of the file beginning at the specified location is estimated, a time window for enabling the client computer to avoid a redundant download of a portion of the file by terminating the session within the time window is computed, and the download of the file is suspended for the time window. If the session is not terminated within the time window, then download of the file is automatically resumed following the length in further response to the request. If the session is terminated within the time window, then download of the file is not automatically resumed following the length in further response to the request.

Managing file downloads

A method and system of managing downloads of a file from a server. A determination is made of whether or not a number of current connections between the client and the server is less than a preset threshold number, exceeding one, of allowable concurrent connections with the server. If the determination is that the number of current connections is less than the preset threshold number, responsive to a request by the client to download the file pursuant to another connection between the client and the server, the computer establishes the other connection between the client and the server and downloads the file to the client via the other connection. If the determination is that the number of current connections is at least the preset threshold number, the computer denies a request by the client to download the file from the server using another connection between the client and the server.

System, method and program for managing download of a file. A current request to establish a session is received. In the session, there is a request to download the file beginning at a specified location after a start of the file. The current request does not specify a fixed length of the requested download. A length of the file to be downloaded is estimated based on prior requests to download the file beginning at other respective locations. In response to the current request, the estimated length of the file is downloaded beginning at the specified location. In response to downloading the estimated length of the file beginning at the specified location, the download of the file is suspended for a time window. If the session corresponding to the current request is not terminated within the time window, then download of the file is automatically resumed following the length in further response to the current request. If the session corresponding to the current request is terminated within the time window, then download of the file is not automatically resumed following the length in further response to the current request.

System, method and program for managing file downloads

A method, system and program product for securing data written to a storage device coupled to a computer system. The method includes providing a detachable data security key device for controlling access to data written to a storage within a computer system and attaching the security key device to the computer system for enabling access to the data written to the storage. Further, the method includes detaching the security key device from the computer system for disabling access to the data written to the storage, wherein removal of the security key device from the computer system renders the data written to the storage unreadable. In an embodiment, the security key device includes an encryption key module coupled to the security key device for encrypting the data written to the storage and includes a decryption key module coupled to the security key device for decrypting the data written to the storage.

Method, system and program product for securing data written to a storage device coupled to a computer system

A method, system and program product for managing downloads of files from a server. The method includes presetting, using a tool, a threshold number of allowable connections for each client requesting connections to download files from a server. The method further includes identifying, using the tool, a client requesting one or more connections to download a file and tracking, using the tool, whether or not the client has exceeded the threshold number of allowable connections preset. If the client has not exceeded the threshold number of allowable connections preset, allowing the one or more connections up to the threshold number of allowable connections preset for the client to download the file from the server and if the client has exceeded the threshold number of allowable connections preset, preventing the client from connecting to the server, such that overloading of the server with too many simultaneous active connections is minimized.

Method, system and program product for managing download requests received to download files from a server

The different illustrative embodiments provide a method, a computer program product, and an apparatus for managing information. A request to store text in a table in a database is received. A determination is made as to whether a first collection of textual information having a first concept that is related to a second concept for the text is present in the database responsive to receiving the request containing the text. The text is associated with the first collection of textual information in the database responsive to a determination that the first collection of textual information in the database having the first concept that is related to the second concept for the text is present in the database. A second collection for the data with a third concept that is related to the second concept for the text within the degree of relatedness is created.

Managing information

A method for transferring data between a first computer and a second computer is provided. The first computer sends a request to start a session, an encrypted session ID, and an encrypted hash value to the second computer. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer starts a session with the first computer. Subsequently, the first computer sends a request to download or upload data, an encrypted ID, an identity of the file, and an encrypted hash value to the second computer in a second connection in the session. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer processes the request.

System, method and program for protecting communication

Available bandwidth utilization during transfer of large files over a TCP/IP network is improved by load balancing data streams and dynamically controlling the number of data streams utilized. A determination is made of the optimum number of data streams for a particular data file transfer in the early stage of transmission. An initial number of data streams, which is one unless otherwise specified or determined, is used to transmit one or more file segments, each on a different data stream, immediately followed by a second initial number of data streams, which is at least two greater than the initial number of data streams, is used to transmit another portion of the large data file. During each transmission, individual and aggregate transmission bandwidths are determined. Responsive to a determination that the latest aggregate transmission bandwidth is significantly different from the previous aggregate transmission bandwidth, the number of data streams is modified.

Load balancing and dynamic control of multiple data streams in a network

According to one aspect of the invention, a method of creating a trial software product on a target system is provided. The method consists of intercepting file system calls from an installation process associated with a full software product and, responsive to a write request from the installation process, encrypting data associated with the write request if the write request is associated with one of a predetermined set of critical product files. The predetermined set of critical product files including those product files comprising the full software product that have been identified as files to which access is to be controlled.

Installing and controlling trial software

A method and apparatus is provided for distributing a software object from a source to a user. A software object is encrypted with an encryption operation utilizing a long-lived encryption key. It is directed from the source to the user. It is loaded onto a user-controlled data processing system having a particular configuration. A numerical machine identification is derived based at least in part upon the particular data processing system configuration of the user-controlled data processing system. A temporary key is derived which is based at least in part upon the numerical machine identification and the long-lived encryption key. The long-lived key generator is provided for receiving the temporary key and producing the long-lived encryption key. The user is allowed to utilize the temporary key for a prescribed interval to generate the long-lived encryption key to access the software object.

Method and apparatus for enabling trial period use of software products:

A method and apparatus is provided in a data processing system for securing access to particular files which are stored in a computer-accessible memory media. A file management program is provided as an operating system component of the data processing system. A plurality of files are stored in a computer-accessible memory media, including at least one encrypted file and at least one unencrypted file. For each encrypted file, a preselected portion of the file is recorded in memory, a decryption block is generated which includes information which can be utilized to decrypt the file, and the decryption block is incorporated in the file in lieu of the preselected portion which has been recorded in memory. Then, a file management program is utilized to monitor data processing system calls for files stored in the computer-accessible memory media. The file management program determines whether the called file has an associated decryption block. The called file is processed in a particular manner dependent upon whether or not the called file has an associated decryption block.

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Lynn Haven, FL, United States of America

Robert F Pryor