Getting error message 'Starting osad: Invalid Cert Error:' while starting 'osad' service

Solution Verified - Updated -


  • while starting osad service, it fails with the below error message:
# /etc/init.d/osad start
Starting osad: Invalid Cert Error:
ERROR: unhandled exception occurred: (Expired certificate /usr/share/rhn/RHNS-CA-CERT).   [FAILED]


  • Red Hat Enterprise Linux

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