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만료 이메일 - Let's Encrypt - 무료 SSL/TLS 인증서 (letsencrypt.org)
~# certbot renew 수행했으나 에러 발생
ImportError: cannot import name 'implements' from 'zope.interface' (/usr/local/l ib/python3.8/dist-packages/zope/interface/__init__.py)
certbot 재설치
apt remove --purge certbot
apt autoremove
apt clean
apt install certbot -u
$ sudo certbot certonly --webroot -w /var/html/www/ -d a3040.com
인증서 설치 후 재시작
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자동 갱신 설정을 추가해야할것 같습니다.