A Solution for Getting Proper Certs

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You will need certbot installed on a machine.

As of June 2022, it is again possible to simply install it on a Debian machine.

  • apt install certbot

First Method: Working from the machine with certbot installed on it

  • certbot -d server0.tinkernet.ca,server1.tinkernet.ca,server2.tinkernet.ca,server3.tinkernet.ca --manual --preferred-challenges dns certonly
  • scp -R /etc/letsencrypt/live/server0.tinkernet.ca/ server0:/etc/letsencrypt/live/
  • scp -R /etc/letsencrypt/live/server1.tinkernet.ca/ server1:/etc/letsencrypt/live/
  • scp -R /etc/letsencrypt/live/server2.tinkernet.ca/ server2:/etc/letsencrypt/live/
  • scp -R /etc/letsencrypt/live/server3.tinkernet.ca/ server3:/etc/letsencrypt/live/

Second Method: Working from the machine being certified

  • ssh root@certifier certbot -d server0.tinkernet.ca --manual --preferred-challenges dns certonly
  • scp -R root@certifier:/etc/letsencrypt/live/server0.tinkernet.ca//etc/letsencrypt/live/

Caveats & other Notes

Both of these techniques require that machines have SSH enabled for root...

Every command above is run as root. (could also be run using sudo)

One possible (sort of...) answer would be to just install certbot under Proxmox since it defaults to having SSH enabled for root anyhow. This might be quite suitable for the Second Method.

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