iptables -A INPUT -s 43.255.40.0/22 -j DROP
iptables -A INPUT -s 223.252.112.0/20 -j DROP
iptables -A INPUT -s 157.112.80.0/20 -j DROP
iptables -A INPUT -s 202.6.244.0/22 -j DROP
ip6tables -A INPUT -s 2001:df0:6800::/48 -j DROP
iptables -A INPUT -s 103.254.144.0/22 -j DROP
iptables -A INPUT -s 203.209.144.0/20 -j DROP