iptables -A INPUT -s 119.38.128.0/18 -j DROP
iptables -A INPUT -s 120.31.112.0/20 -j DROP
iptables -A INPUT -s 120.31.192.0/18 -j DROP
iptables -A INPUT -s 120.31.192.0/19 -j DROP
iptables -A INPUT -s 120.31.224.0/19 -j DROP
iptables -A INPUT -s 120.31.1.0/24 -j DROP
iptables -A INPUT -s 120.31.0.0/24 -j DROP
iptables -A INPUT -s 120.31.96.0/19 -j DROP
iptables -A INPUT -s 120.31.96.0/20 -j DROP
iptables -A INPUT -s 120.31.0.0/16 -j DROP