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Startup of Time Synchronization, Directory, and Security Services

IP.com Disclosure Number: IPCOM000111599D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Cheung, RY: AUTHOR [+2]

Abstract

If, at bootstrap time, there is a significant offset in time between a distributed system and other distributed system servers in an Open Software Foundation (OSF) Distributed Computing Environment (DCE) distributed system environment, the system may not startup. Disclosed is a process that allows the distributed system to startup despite the time offset.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 65% of the total text.

Startup of Time Synchronization, Directory, and Security Services

      If, at bootstrap time, there is a significant offset in time
between a distributed system and other distributed system servers in
an Open Software Foundation (OSF) Distributed Computing Environment
(DCE) distributed system environment, the system may not startup.
Disclosed is a process that allows the distributed system to startup
despite the time offset.

      In the OSF DCE environment, time synchronization service,
security service and directory service are heavily dependent upon
each other.  The time synchronization service uses the security
service to protect the system from intentionally induced failures and
uses the directory service to locate other time synchronization
services and time providers.  The security service provides
authentication and ensures the integrity of the timestamp.  It also
uses the directory service to find other security services with which
to communicate.  The directory service provides the location of other
time synchronization services and needs the security service to
authenticate requesters.  These inter-relationships may create a
problem with the availability of the system at bootstrap time if
there is a significant time difference between the DCE system and
other distributed system servers.  The DCE system may not startup
automatically without manual intervention from the operator.  The
availability of the DCE system may be improved by the following
...