What does the following iptables rule accomplish: iptables A INPUT d 10.142.232.1 p tcp dport 20:21 j ACCEPT

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Options

• AForwards all traffic not on port 20 or 21 to the host 10.142.232.1.
• BDrops all traffic coming from the host 10.142.232.1 destined for port 20 or 21.
• CAccepts all traffic from the host 10.142.232.1 destined for port 20 or 21.
• DForwards all traffic on port 20 and 21 to the host 10.142.232.1.

• A
  4% (2)
• B
  10% (5)
• C
  16% (8)
• D
  71% (36)

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