[Errno 14] HTTP Error is seen intermittently when using yum to update or install packages

Solution Verified - Updated -

Issue

  • When installing or updating packages, the following error messages are seen:

    Unable to retrieve repo metadata
    [Errno 14] HTTP Error 501: Not Implemented ... or ... 
    
  • Running yum update generates the following error:

    [Errno 14] HTTP Error 503: Service Unavailable ... or ... 
    

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4

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