0과1

**************** [ 인증서 파일 생성 ] **************** [pem 방식] /usr/share/elasticsearch/bin/elasticsearch-certutil ca --days 3650 --pem --pass "" --out /etc/elasticsearch/certs/certs-root.zip unzip /etc/elasticsearch/certs/certs-root.zip -d /etc/elasticsearch/certs/ /usr/share/elasticsearch/bin/elasticsearch-certutil cert --ca-cert /etc/elasticsearch/certs/ca/ca.crt --ca-key /etc/elasticsearch/certs/c..