3 ms·

And you have two or more servers serving this domain you’re out of luck

• lmz 1y ago
  And this is different from DNS how exactly? The key and resulting cert still needs to be distributed among your servers no matter which method is used.
  • cpach 1y ago
    With dns-01, multiple servers could, independently of each other, fetch a certificate for the same set of hostnames. Not sure if it’s a good idea though.
    • lmz 1y ago
      Multiple keys and certs for the same hostname? Will the CA even issue that?
      • cpach 1y ago
        I guess it depends on the CA, but some do. Let’s Encrypt does, for example. I guess it’s useful for HA deployments, where load balancers might be spread out across multiple datacenters and stuff like that. NB that rate limits apply https://letsencrypt.org/docs/rate-limits/ https://letsencrypt.org/docs/rate-limits/
• account42 1y ago
  Not really, just forward .well-known/acme-challenge/* requests to a single server or otherwise make sure that the challenge responses are served from all instances.