Ubuntu 20.04 에 letsencrypt SSL 인증서 설치

$ sudo certbot certonly --webroot -w /storage/web/ -d zebra.iptime.org
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for zebra.iptime.org
Using the webroot path /storage/web for all unmatched domains.
Waiting for verification...
Cleaning up challenges

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/zebra.iptime.org/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/zebra.iptime.org/privkey.pem
   Your cert will expire on 2020-09-30. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot
   again. To non-interactively renew *all* of your certificates, run
   "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

 

sudo a2enmod ssl
sudo a2ensite zebra.iptime.org
mv /etc/Apache2/sites-available/default-ssl.conf /etc/Apache2/sites-available/zebra.iptime.org.conf

#아래의 내용으로 파일 수정
#DocumentRoot /storage/web
#SSLCertificateFile “/etc/letsencrypt/live/zebra.iptime.org/cert.pem”
#SSLCertificateKeyFile “/etc/letsencrypt/live/zebra.iptime.org/privkey.pem”
#SSLCertificateChainFile “/etc/letsencrypt/live/zebra.iptime.org/chain.pem”

sudo service apache2 restart

80번으로 접속시 자동으로 443으로 리다이렉션 시킬 경우 아래와 같이 수정

인증서 갱신

sudo certbot renew --dry-run

아니면 아래에 등록해서 정기적으로 수행

/etc/crontab/
/etc/cron.*/*
systemctl list-timers

참고

https://certbot.eff.org/lets-encrypt/ubuntufocal-other

Certbot - Ubuntufocal Other