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20 lines
675 B
20 lines
675 B
4 years ago
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sudo apt update
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sudo apt upgrade -y
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sudo apt install tcpdump -y
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worker1IP=$(ifconfig | grep inet | sed -n 1p | awk "{print \$2}" )
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clear
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sudo iptables -F
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echo "Listening to ICMP replies from worker1 for 5 seconds"
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sleep 2s
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sudo timeout 5s tcpdump -i eth0 icmp and src $worker1IP
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sleep 2s
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echo "Applying Ip Tables Rules"
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sleep 2s
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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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echo "Listening to ICMP replies from worker1 for 5 seconds"
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sleep 2s
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sudo timeout 5s tcpdump -i eth0 icmp and src $worker1IP
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echo "Spot any difference?"
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