iptables -A INPUT -s 104.152.53.0/24 -j DROP
iptables -A INPUT -s 104.152.55.0/24 -j DROP
ip6tables -A INPUT -s 2607:8500::/32 -j DROP
iptables -A INPUT -s 104.152.52.0/22 -j DROP
iptables -A INPUT -s 104.152.54.0/24 -j DROP
iptables -A INPUT -s 104.152.52.0/24 -j DROP