Is port 80 required for renewals?

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Hi Juergen,

Thanks for the reply. I allowed inbound port 80 to register the certificate which worked fine. My question is whether port 80 is required for the renewal of an existing certificate.

When you say:

“There https is used -> local initiated outbound port 443 is required (and answers, but that’s firewall specific).”

Do you mean that port 80 is not required for renewals? And I only need to allow port 443?

The tcpdump output indicates that this is the case but it would be great to get some confirmation.

Thanks!

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