Firewall rules and ports to connect to HTML2PDF Rocket

From September 2021, we have implemented a new security gateway to both speed up conversions and also protect customer privacy.

FQDN Firewall Rules

The most secure way to implement firewall rules is to use FQDN firewall rules. This allows you to secure access to highly specific resources using the hostnames instead of IP addresses since IP addresses can change over time in our cloud-connected world.

Please ensure that the following Firewall Rules are in place if connecting from a corporate network:

IP Address Firewall Rules

IP-based firewall rules are not supported since our IPs change over time and can also be different depending on the geolocation of the source computer. If you contact us for support with regard to IP-based firewall rules, please do not expect a quick response.

However, if you wish to avoid any semblance of security by opening access using IP-based firewall rules, the command* to retrieve the entire possible list of IP addresses is below.

curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | jq '.prefixes ' | jq '.[] | select ((.service=="CLOUDFRONT"))' | jq -r '.ip_prefix'

* requires bash and jq.

For equivalent instructions for Windows, refer to AWS IP address ranges - AWS General Reference (amazon.com).

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