International Business Machines Corporation

Chad Dale Lingmann

Christopher Norman Kline

System, method and program product for updating a current encryption certificate with a new encryption certificate in a computer having a first plurality of communication channels which require an encryption certificate and a second plurality of communication channels which do not require an encryption certificate. The computer stores the current encryption certificate. The first plurality of communication channels are active and use the current encryption certificate for communication. The second plurality of communication channels are also active. The first plurality of communication channels are deactivated without deactivating the second plurality of communication channels, while substituting the new encryption certificate for the current encryption certificate for subsequent use by the first plurality of communication channels. After the substitution, the first plurality of communication channels are reactivated. After the reactivation, the computer communicates with another computer via one of the first plurality of communication channels using the new encryption certificate.

System, method and program to update certificates in a computer

A system and computer program product for backing up a program and a plurality of user instances of the program. First program instructions backup definitions of queues used by the program instances. Second program instructions backup authorizations for the queues. Third program instructions backup a plurality of program-instance configuration files for the plurality of program instances, respectively. Fourth program instructions backup a configuration file for the program. Also disclosed is a method and program product for backing up a user program instance which has locked a queue definition file containing definitions of queues and authorizations for accessing the queues, and which has not locked a configuration file identifying the user program instance. A backup program queries the user program instance for the definitions of the queues and the authorizations for the queues such that the user program instance retains the lock on the queue definition file. In response, the user program reads the definitions and authorizations from the queue definition file and furnishes them to the backup program. The backup program directly reads the configuration file without querying the user program for the configuration file and without locking the configuration file.

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Longmont, CO, United States of America

Chad Dale Lingmann