Re:Google wants to reduce lifespan for HTTPS certificates to...
by skissane on Sunday August 18, 2019 @08:58PM
(#20734046)
If you are using DNS challenge type, then LetsEncrypt doesn't have to talk to the internal service. You just need the name of the internal service to be in public DNS. (You don't even need its internal IP address in there, LetsEncrypt only looks at the TXT record of _acme-challenge.)
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