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How to block ICMP Timestamp Request and Reply in firewalld?

Solution Verified - Updated -

Issue

  • CVE-1999-0524 の応答で、システムが ICMP 要求に応答するのを防ぐにはどうすればよいですか?
  • firewalld を使用して ICMP のタイムスタンプ要求と応答をブロックするにはどうすればよいですか?

Environment

  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7

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