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24 lines
670 B
24 lines
670 B
4 years ago
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sudo apt update
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sudo apt upgrade -y
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#Find worker1 IP
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worker1=$(ifconfig|grep inet|sed -n lp|awk "{print \$2}")
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clear
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sudo iptables -F
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echo "2 sec ICMP packet sniffing"
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sleep 2s
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sudo timeout 2s tcpdump -i eth0 icmp $worker1
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sleep 2s
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echo "New iptables rules"
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#clean iptables rules from previous script runs
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sudo iptables -X
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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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#limit icmp_flood to 1 packets per second
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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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sleep 2s
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echo "2 sec ICMP packet sniffing after iptables config"
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sleep 2s
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sudo timeout 2s tcpdump -i eth0 icmp $worker1
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