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Resolved Let's Encrypt: Install certificate for Plesk Panel fails

gbotica

Regular Pleskian
Hello,

I'm using Plesk Onyx Version 17.5.3 Update #43 on CentOS 7.4.

I have been trying to install a Let's Encrypt certificate for the Plesk Panel, but I get the following error:

SSL TLS Certificates.png

My Plesk Panel uses a subdomain URL like: https://subdomain.domain.nz (the main domain, 'domain.nz' is hosted on an entirely different server). I read something about using a subdomain for Plesk Panel being an issue in the past, but thought it was resolved?

Could it be something wrong with the URL that Let's Encrypt is fetching, i.e. it ends with:

...domain.nz:8443.well-known/acme-challenge...

Shouldn't there be a slash after 8443? If so, how would I resolve it?

Thanks in advance for any help you can provide.
 
I've managed to work around this by adding a Administrator owned subscription for my Plesk Panel's URL and then using an .htaccess rule to redirect to the actual panel URL i.e. ...:8443.

Once I'd done that I could successfully install a Let's Encrypt certificate for the panel.
 
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