A snippet to auto-download and reload nginx
Checks for a valid conf and echo's success or failure
#!/usr/bin/bash
# get-cf-proxy-ips.sh
ipv4=`curl -s https://www.cloudflare.com/ips-v4/#`
ipv6=`curl -s https://www.cloudflare.com/ips-v6/#`
ips="${ipv4} ${ipv6}"
output="cloudflare.conf"
echo -n > $output
for i in $ips
do
echo -e "set_real_ip_from\t$i;" >> $output
done
echo -e "real_ip_header\t\tCF-Connecting-IP;" >> $output
sudo cp $output /etc/nginx/cloudflare.conf
sudo systemctl reload nginx
sudo /usr/sbin/nginx -t 2>/dev/null > /dev/null
if [[ $? == 0 ]]; then
echo "success"
# do things on success
else
echo "fail"
# do whatever on fail
fi
Sample of the cloudflare.conf file that you can use in nginx
set_real_ip_from 173.245.48.0/20;
set_real_ip_from 103.21.244.0/22;
set_real_ip_from 103.22.200.0/22;
set_real_ip_from 103.31.4.0/22;
set_real_ip_from 141.101.64.0/18;
set_real_ip_from 108.162.192.0/18;
set_real_ip_from 190.93.240.0/20;
set_real_ip_from 188.114.96.0/20;
set_real_ip_from 197.234.240.0/22;
set_real_ip_from 198.41.128.0/17;
set_real_ip_from 162.158.0.0/15;
set_real_ip_from 104.16.0.0/13;
set_real_ip_from 104.24.0.0/14;
set_real_ip_from 172.64.0.0/13;
set_real_ip_from 131.0.72.0/22;
set_real_ip_from 2400:cb00::/32;
set_real_ip_from 2606:4700::/32;
set_real_ip_from 2803:f800::/32;
set_real_ip_from 2405:b500::/32;
set_real_ip_from 2405:8100::/32;
set_real_ip_from 2a06:98c0::/29;
set_real_ip_from 2c0f:f248::/32;
real_ip_header CF-Connecting-IP;
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