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cheatsheet-tldr/tldr/linux/certbot
2026-01-05 00:24:05 +00:00

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---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# certbot
> The Let's Encrypt Agent for automatically obtaining and renewing TLS certificates.
> Successor to `letsencrypt`.
> More information: <https://eff-certbot.readthedocs.io/en/latest/using.html>.
- Obtain a new certificate via webroot authorization, but do not install it automatically:
`sudo certbot certonly --webroot {{[-w|--webroot-path]}} {{path/to/webroot}} {{[-d|--domain]}} {{subdomain.example.com}}`
- Obtain a new certificate via `nginx` authorization, installing the new certificate automatically:
`sudo certbot --nginx {{[-d|--domain]}} {{subdomain.example.com}}`
- Obtain a new certificate via apache authorization, installing the new certificate automatically:
`sudo certbot --apache {{[-d|--domain]}} {{subdomain.example.com}}`
- Renew all Let's Encrypt certificates that expire in 30 days or less (don't forget to restart any servers that use them afterwards):
`sudo certbot renew`
- Simulate the obtaining of a new certificate, but don't actually save any new certificates to disk:
`sudo certbot --webroot {{[-w|--webroot-path]}} {{path/to/webroot}} {{[-d|--domain]}} {{subdomain.example.com}} --dry-run`
- Obtain an untrusted test certificate instead:
`sudo certbot --webroot {{[-w|--webroot-path]}} {{path/to/webroot}} {{[-d|--domain]}} {{subdomain.example.com}} --test-cert`