Block all connections to Fastly

fastly-block.sh

#! /bin/sh

IPV4_RANGES=(
  "23.235.32.0/20"
  "43.249.72.0/22"
  "103.244.50.0/24"
  "103.245.222.0/23"
  "103.245.224.0/24"
  "104.156.80.0/20"
  "140.248.64.0/18"
  "140.248.128.0/17"
  "146.75.0.0/17"
  "151.101.0.0/16"
  "157.52.64.0/18"
  "167.82.0.0/17"
  "167.82.128.0/20"
  "167.82.160.0/20"
  "167.82.224.0/20"
  "172.111.64.0/18"
  "185.31.16.0/22"
  "199.27.72.0/21"
  "199.232.0.0/16"
)
IPV6_RANGES=(
  "2a04:4e40::/32"
  "2a04:4e42::/32"
)

for ip in "${IPV4_RANGES[@]}"; do
  iptables -A OUTPUT -d $ip -j REJECT
  iptables -A FORWARD -d $ip -j REJECT
done

for ip in "${IPV6_RANGES[@]}"; do
  ip6tables -A OUTPUT -d $ip -j REJECT
  ip6tables -A FORWARD -d $ip -j REJECT
done

echo "Blocking rules have been applied to OUTPUT and FORWARD chains."