To deny all incoming traffic by default and only allow specific traffic in iptables, one would set the default policy of the INPUT chain to ________.

  • ACCEPT
  • REJECT
  • DROP
  • ALLOW
To deny all incoming traffic by default and only allow specific traffic in iptables, one would set the default policy of the INPUT chain to DROP. This means that any incoming traffic that doesn't match an explicit rule will be dropped by default.
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