Apache httpd failed to start with error 'Server-Cert' , SSL Library Error: -8181 Certificate has expired

Solution Verified - Updated -

Issue

  • Apache httpd fails to start and does not produce error output.
  • Apache httpd is unable to start with following error in error_log:

    [error] Certificate not verified: 'Server-Cert' , SSL Library Error: -8181 Certificate has expired
    
  • Or this error:

    [error] SSL Library Error: -8181 Certificate has expired
    [error] Unable to verify certificate 'Server-Cert'. Add "NSSEnforceValidCerts off" to nss.conf so the server can start until the problem can be resolved.
    

Environment

  • Red Hat Enterprise Linux (RHEL)
    • 5.x
    • 6.x
    • 7.x
  • Apache httpd with mod_nss

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