TLS 인증서를 발급하려면 DNS-01 챌린지를 사용. 더 많은 정보: https://github.com/acmesh-official/acme.sh/wiki.
acme.sh --issue --dns {{gnd_gd}} --domain {{example.com}}
acme.sh --issue --dns {{dns_namesilo}} --domain {{example.com}} --domain {{*.example.com}}
acme.sh --issue --dns {{dns_cf}} --domain {{example.com}} --challenge-alias {{alias-for-example-validation.com}}
acme.sh --issue --dns {{dns_namecheap}} --domain {{example.com}} --dnssleep {{300}}
acme.sh --issue --dns --domain {{example.com}} --yes-I-know-dns-manual-mode-enough-go-ahead-please