I have a publicly accessible domain name that can be resolved by DNS on the broad internet ( mypublicdomain.com ). I am interested in getting certs for many services that are internal to my LAN, for which I have a local domain not accessible outside of my LAN (inernal.local is the domain, service.inte…

All names in the certificate (both Subject and SAN, both FQDN and wildcard) need to be publicly accessible and able to be validated by Let's Encrypt. Instead, you can get a wildcard cert for *.mypublicdomain.com, and use your internal DNS server to advertise your private local services as service.m…

danb35 January 20, 2024, 2:43pm 9

The obvious next step would be:

...but it might be overkill for this situation.

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Need to secure my internal website

How to generate an SSL certificate for a internal-only domain that’s not on the Internet?

Local Domain certs with Let's Encrypt CA