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9 lines
375 B
9 lines
375 B
4 years ago
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my_ip=$(ifconfig eth0 | grep 'inet' | cut -d: -f2 | awk '{print $2}')
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sudo iptables -F
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sudo timeout 2s tcpdump -i eth0 icmp and src $my_ip
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sudo iptables -N icmp_flood
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sudo iptables -A INPUT -p icmp -j icmp_flood
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sudo iptables -A icmp_flood -m limit --limit 1/s --limit-burst 3 -j RETURN
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sudo iptables -A icmp_flood -j DROP
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sudo timeout 5s tcpdump -i eth0 icmp and src $my_ip
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