CAA 레코드
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CAA(Certificate Authority Authorization) 레코드는 도메인에 대한 [[ssl-tls|SSL/TLS 인증서]]를 발급할 수 있는 인증기관(CA)을 지정하는 [[dns|DNS]] 레코드입니다. CAA 레코드는 무단 인증서 발급을 방지합니다.
예시
A CAA record 'example.com. IN CAA 0 issue "letsencrypt.org"' means only Let's Encrypt can issue certificates for example.com.