Installing ssl certificate/key on router

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1

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My domain is:
opy.duckdns.org

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):
Hasbian1.23

My hosting provider, if applicable, is:

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

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

Total Noob here, please bear with me. I used letsencrypt for my opy.duckdns.org and it was successful, but I have been unable to access it since then and i think that is due to my router (RT-AC68U running Merlin firmware). From my research, i have to install my ssl certificate on the router, i’m using this step here https://gist.github.com/davidbalbert/6815258

My question now is, do i put /etc/letsencrypt/live/opy.duckdns.org/fullchain.pem as SSL certificate and /etc/letsencrypt/live/opy.duckdns.org/privkey.pem as SSL key or is there another way to see those? That’s where i have been stuck since last night.

TL;DR - I was able to access home assistant before, but couldn’t again after i encrypted it. I need my SSL certificate/Key to install on my router.

Thanks.

2

That sounds right, although some devices don't accept bundling the intermediate certificate with the end-entity certificate, in which case you might have to use cert.pem instead of fullchain.pem (potentially producing validity warnings in some browsers). Did you try it this way?

3

Thanks for the quick reply. No, i didn’t try it yet. Wanted to confirm what i was doing before proceeding. I will try it when i get home today and leave an update. Thanks.

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