firewall-cmd --reload disconnects existing connections.

Solution Verified - Updated -

Issue

  • Why do I see drops in ping when firewalld-cmd --reload is executed ?
  • firewall-cmd --reload disconnects existing sessions.
  • firewall-cmd --reload can cause DNS connection time outs.
  • firewall-cmd --reload can cause NIS connection time outs.

Environment

  • Red Hat Enterprise Linux 7
  • Firewalld

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