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Forked from dduvnjak/add_cloudflare_ips.sh
Created January 9, 2019 14:25
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Add CloudFlare IP addresses to an EC2 Security Group using awscli
# first we download the list of IP ranges from CloudFlare
wget https://www.cloudflare.com/ips-v4
# iterate over the lines in the downloaded file
# make sure to set `--group-id` and `--port`; more details at http://docs.aws.amazon.com/cli/latest/reference/ec2/authorize-security-group-ingress.html
while read p; do aws ec2 authorize-security-group-ingress --group-id sg-e0000000 --protocol tcp --port 80 --cidr $p; done< ips-v4
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