How to automate SSL certificate renewal?

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1

Hello, Does Caddy automatically renew let’s encrypt SSL certificates? Or do other instructions need to be added?

How many days before the certificate expires does Caddy do this?

2

Yes absolutely, TLS automation is one of Caddy’s headlining features:

That’s determined by the certificate authorities, but Let’s Encrypt and ZeroSSL which Caddy enables by default both have 90 day lifetimes. Caddy renews after 2/3 of the lifetime, so starting at 60 days (or 30 days remaining).

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3

Thanks for the answer, but is there a need for example to add additional instructions or does caddy do it automatically just with instructions below?

domain.com {
  reverse_proxy 127.0.0.1:8110
}
4

Yes, it’s automatic. That’s all you need (barring some other specific requirements you have). For the majority of cases, that’s all you need. Make sure ports 80 and 443 are open and forwarded, and that your DNS is properly pointing to your server’s IP address.

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5

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