Error setting up route53 certificate

Please post back when you have a solution.

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No havent figured out the solution yet. Still reading documentations hoping to find a definition for those two different files. Will post it once found answer.

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As of this writing I have searched on Google but there doesn't seem to be official definition for the functions of the two files mentioned, "chain.pem" and "fullchain.pem". So I experimented exchanging one for the other, and it doesn't appear to affect the website. So yes I think they are safe to be said interchangable.

As @rg305 said, this is a combination of cert.pem plus chain.pem in a single file. This is provided because different TLS server applications expect different combinations of these certificates for their respective configurations. For example, a web server may expect the fullchain.pem combination, while a mail server may sometimes expect the cert.pem and chain.pem to be provided separately.

There is no configuration or environment that I can think of that would actively use all four of the PEM files that Certbot creates.

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Thanks for this clear and definitive tip!

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Not with HTTP, indeed.

But your site works perfectly on port 443 using HTTPS.

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Yes, this is the desirable result actually. Thx.

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Welcome to the Let's Encrypt Community, Jinghui :slightly_smiling_face:


Why do you want your visitors to be shown an error with no http to https redirection?


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Hi there. Thank you for your kind reminder. I'm actually still working on it. once I figure out some of the key concept I'll improve my website.

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