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certbot

The Let's Encrypt Agent for automatically obtaining and renewing TLS certificates.

Successor to `letsencrypt`.

More information.

Obtain a new certificate via webroot authorization, but do not install it automatically:

sudo certbot certonly --webroot --webroot-path {path/to/webroot} --domain {subdomain.example.com}

Obtain a new certificate via nginx authorization, installing the new certificate automatically:

sudo certbot --nginx --domain {subdomain.example.com}

Obtain a new certificate via apache authorization, installing the new certificate automatically:

sudo certbot --apache --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 --webroot-path {path/to/webroot} --domain {subdomain.example.com} --dry-run

Obtain an untrusted test certificate instead:

sudo certbot --webroot --webroot-path {path/to/webroot} --domain {subdomain.example.com} --test-cert

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