Problem with payment processor

Hi, do you mind explaining how to white list ip ?

I am stuck with a problem that both payment gateway & hosting provider can’t help because they think Let’s Encrypt SSL is blocking a POST action to an ip address.

Found this .well-known folder under public_html folder but how to you write that allow all in a filename?

The IP address that LE is validating on has nothing to do with the blocking of a POST between your server and payment processor.

@vinamelody, I agree with @serverco that this is a completely different, unrelated issue.

Try testing your site in to see if there is any misconfiguration that might be stopping the payment processor from connecting. For example, it could be missing the chain certificate.

You can use a hook to temporarily allow access while you turn off your server

./certbot-auto certonly -d \
    --pre-hook='systemctl stop apache2.service && iptables -I INPUT -p tcp --dport 443 -j ACCEPT'
    --post-hook='iptables -D -p tcp --dport 443 -j ACCEPT && systemctl start apache2.service'

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