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 Method for changing a security policy during processing of a transaction request

Details
Inventors: Child, Garry L.; Shrader, Theodore Jack London; Soper, Davis Kent;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Hayes; Gail
Assistant Examiner: Jackson; Denise
Attorney, Agent or Firm: LaBaw; Jeffrey S., Burwell; Joseph R., Judson; David

A method for changing a user password is preferably operative as a Web server impersonates a Web client to obtain access to files stored in a distributed file system space of a distributed computing environment. The method begins in response to receipt of a Web transaction request from the Web client to determine whether the user's password has expired. If so, the method suspends processing of the Web transaction request and then enters a password change subprogram to enable the user to define a new password. Typically, the password change subprogram displays a password change dialog that interacts with the user. Upon definition of the new password by the user, the mechanism resumes processing of the original Web transaction request. Alternatively, the user may be prompted to terminate the original transaction request and select a new URL and/or document.

DETAILED DESCRIPTION An object of this invention is to enable a Web browser user to automatically change a password when an invalid password is detected and then to use the new password to access documents in a secure distributed file system space.
The technique is preferably implemented in conjunction with a Web server application that accesses a document within the file system space on behalf of the Web browser user.
Another more general object of this invention is to change or enforce a given security policy as a server impersonates a client to obtain access to files stored in a distributed file system space of a distributed computed environment.
Yet another object of this invention is to selectively inhibit a Web browser user having an expired password from accessing documents in a protected distributed file system space.
A more general object of this invention is to change a security policy for an application using a security subprogram that is independent of the application.
Still another more general object of this invention is to monitor a security policy change for a given process during the operation of another process and to selectively direct a user to a mechanism that enables the user to respond to the policy change.
Another object of this invention is to enable an administrator to lock a user out of DCE/DFS functionality from a Web browser until the administrator has an opportunity to renew the account and reset the user's password.
These and other objects of this invention are provided in various methods, systems and computer program products.
Thus, for example, a method for changing a user password according to the present invention is preferably operative as a Web server impersonates a Web client to obtain access to files stored in a distributed file system space of a distributed computing environment.
The distributed computing environment typically includes a security service for returning a credential to a user authenticated to access the distributed file system.
The present invention provides a mechanism for enabling a user to change his or her password, for example, when the user's password has expired


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