ddos command : 

netstat -ntu | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -n
route add 12.219.178.143 reject
route add 202.173.147.138 reject

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netstat -a | grep SYN | wc -l
iptables -A INPUT -s 124.177.148.139 -j DROP
netstat -anp |grep ‘tcp\|udp’ | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -n

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