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- *filter
- :INPUT DROP [0:0]
- :FORWARD DROP [0:0]
- :OUTPUT ACCEPT [0:0]
- -A INPUT -p icmp -j ACCEPT
- -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
- -A INPUT -i lo -j ACCEPT
- -A INPUT -p tcp -j REJECT --reject-with tcp-reset
- -A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
- -A INPUT -j REJECT --reject-with icmp-proto-unreachable
- COMMIT
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