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bash-scripts

A collection of random (and hopefully useful) bash (and maybe other) scripts.

letsencrypt-renew

This script is used for automatic renewal of Let's Encrypt certificates using the webroot authentication method. Apart from the script iself, there are two more things that need to be set up:

  1. The configuration file config.ini, which contains a few common options:
rsa-key-size = 2048
email = admin@example.com
text = True
agree-tos = True
renew-by-default = True
authenticator = webroot
  1. For each domain on the server, a special location for the Let's Encrypt challenge auth has to be set up:
# /etc/nginx/conf.d/example.com
# ...
    location ~ /.well-known {
        allow all;
    }
# ...

The script can be then run via cron:

# /etc/cron.d/letsencrypt-renew
30 10 */2 * * root /root/scripts/letsencrypt-renew.sh