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iptables -A INPUT -s 103.81.72.0/22 -j DROP
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iptables -A INPUT -s 61.114.80.0/20 -j DROP
iptables -A INPUT -s 202.51.32.0/20 -j DROP
iptables -A INPUT -s 116.90.192.0/20 -j DROP
ip6tables -A INPUT -s 2401:d900::/32 -j DROP
iptables -A INPUT -s 223.165.80.0/20 -j DROP
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iptables -A INPUT -s 203.133.240.0/21 -j DROP
iptables -A INPUT -s 175.158.112.0/20 -j DROP
iptables -A INPUT -s 219.117.16.0/20 -j DROP
iptables -A INPUT -s 219.100.148.0/22 -j DROP