Certbot --help

certbot --help

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  certbot [SUBCOMMAND] [options] [-d DOMAIN] [-d DOMAIN] ...

Certbot can obtain and install HTTPS/TLS/SSL certificates.  By default,
it will attempt to use a webserver both for obtaining and installing the
certificate. The most common SUBCOMMANDS and flags are:

obtain, install, and renew certificates:
    (default) run   Obtain & install a certificate in your current webserver
    certonly        Obtain or renew a certificate, but do not install it
    renew           Renew all previously obtained certificates that are near expiry
   enhance         Add security enhancements to your existing configuration
   -d DOMAINS       Comma-separated list of domains to obtain a certificate for

  (the certbot apache plugin is not installed)
  --standalone      Run a standalone webserver for authentication (the certbot nginx plugin is not installed)
   --webroot         Place files in a server's webroot folder for authentication
   --manual          Obtain certificates interactively, or using shell script hooks

   -n               Run non-interactively
  --test-cert       Obtain a test certificate from a staging server
  --dry-run         Test "renew" or "certonly" without saving any certificates to disk

manage certificates:
    certificates    Display information about certificates you have from Certbot
    revoke          Revoke a certificate (supply --cert-path)
    delete          Delete a certificate

manage your account with Let's Encrypt:
    register        Create a Let's Encrypt ACME account
  --agree-tos       Agree to the ACME server's Subscriber Agreement
   -m EMAIL         Email address for important account notifications 

More detailed help:

  -h, --help [TOPIC]    print this message, or detailed help on a topic; the available TOPICS are:

  all, automation, commands, paths, security, testing, or any of the
  subcommands or plugins (certonly, renew, install, register, nginx,
  apache, standalone, webroot, etc.)
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See also

• certbot [ certificates | renew | certonly ], certbot --help
• Certbot, Let's Encrypt: certbot (command), plugins, OCSP, certbot certificates, certbot renew (examples), /var/log/letsencrypt/letsencrypt.log, Certificate Checker, Certbot changelog, certbot --help, /etc/letsencrypt/