# 인증서 갱신
/var/services/homes/[계정명]/acme.sh --renew --dns --force -d [도메인] -d *.[도메인] --yes-I-know-dns-manual-mode-enough-go-ahead-please --server letsencrypt

# 갱신된 인증서를 시놀로지에 등록
cp /var/services/homes/[계정명]/.acme.sh/[도메인]/[도메인].cer /usr/syno/etc/certificate/_archive/[폴더명]/cert.pem
cp /var/services/homes/[계정명]/.acme.sh/[도메인]/ca.cer /usr/syno/etc/certificate/_archive/[폴더명]/chain.pem
cp /var/services/homes/[계정명]/.acme.sh/[도메인]/fullchain.cer /usr/syno/etc/certificate/_archive/[폴더명]/fullchain.pem
cp /var/services/homes/[계정명]/.acme.sh[도메인]/[도메인].key /usr/syno/etc/certificate/_archive/[폴더명]/privkey.pem

# nginx 서비스 재시작
/usr/syno/bin/synosystemctl reload nginx