iptables -A INPUT -s 103.47.44.0/23 -j DROP
iptables -A INPUT -s 103.47.44.0/24 -j DROP
iptables -A INPUT -s 103.47.45.0/24 -j DROP
iptables -A INPUT -s 103.47.47.0/24 -j DROP
iptables -A INPUT -s 103.47.46.0/23 -j DROP
iptables -A INPUT -s 103.47.46.0/24 -j DROP