Firewalld service failed to start in RHEL 7 and showing error "No IPv4 and IPv6 firewall".

Solution Verified - Updated -

Issue

  • Firewalld.service is not starting in RHEL 7.
  • Firewalld.service status shows the following error :

    firewalld[20545]: 2016-07-14 11:01:55 ERROR: ebtables not usable, disabling ethernet bridge firewall.
    firewalld[20545]: 2016-07-14 11:01:55 FATAL ERROR: No IPv4 and IPv6 firewall.
    firewalld[20545]: 2016-07-14 11:01:55 ERROR: Raising SystemExit in run_server.
    

Environment

  • Red Hat Enterprise Linux 7.
  • Firewalld.

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