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Question set up a subdomain for an alias domain - SSL certificate

W4ru

Basic Pleskian
Server operating system version
Ubuntu 22.04.5 LTS
Plesk version and microupdate number
Plesk Obsidian 18.0.64 Update 1
Starting point:
I have a domain.tld and the alias domain.tld2
A wordpress with language switcher is running on it and everything is working as it should.

Now I was planning to use this variant for a special project
sub.domain.tld and sub.domain.tld2

The problem is that despite the wildcard certificate *.domain.tld and the corresponding certificate for domain.tld2, I cannot get an SSL connection to sub.domain.tld2, because apparently *.domain.tld2 is not certified!

Is this an error by design? How can I also integrate the subdomains into the certificate for the alias domain(s) via *?

Setting up the domains separately in Plesk would be the worst solution.

I am glad for any advice!
 
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