Unclear how to setup QNAP NAS using Cerbot with Let's Encrypt

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Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: llanblethian.org.uk

I ran this command:

It produced this output:

My web server is (include version):

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):

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Sounds like a question you should be asking QNAP. Here are some resources that may help:
https://www.qnap.com/en/how-to/faq/article/how-do-i-install-a-lets-encrypt-ssl-certificate-for-a-custom-ddns-domain-in-qts

https://forum.qnap.com/viewtopic.php?t=144434

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Not sure what CERTBOT option I should use where the QNAP NAS is running on macOS with Apache?

QNAP tech support are saying running their webserver using their application is outside their scope for helping me. I’m just hoping someone else has a Mac and successfully setup a SSL Certificate using QNAP Webserver application on a Mac

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Are you quite sure of this? Because I'd expect the QNAP NAS is running its own OS, which is not macOS.

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I know this is what my QNAP is running

# uname -a
Linux NAS3BA281 4.2.8 #2 SMP Fri Oct 24 14:08:03 CST 2025 armv7l GNU/Linux
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Bruce you’re right it’s running a linux I believe which I access on my Mac, so I’m hopingI fond the exact way I choose the correct option from Cerbot’s menu of options to install Cerbot and the full step by step process to setup SSL on my QNAP Webserver self hosted website. Can you assist me with this please?

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Unfortunately, it is all too common for providers to offer LE or something like this, but don't really give any support for it.

I don't have a qnap device to help, myself, but there's usually a panel on this kind of device you can access that should have some sort of interface for it, checking that would be the first step.