Provided by: puppet_5.4.0-2ubuntu3_all 
NAME
puppet-ca - Local Puppet Certificate Authority management.
SYNOPSIS
puppet ca action
DESCRIPTION
This provides local management of the Puppet Certificate Authority.
You can use this subcommand to sign outstanding certificate requests, list and manage local certificates,
and inspect the state of the CA.
OPTIONS
Note that any setting that´s valid in the configuration file is also a valid long argument, although it
may or may not be relevant to the present action. For example, server and run_mode are valid settings, so
you can specify --server <servername>, or --run_mode <runmode> as an argument.
See the configuration file documentation at
https://docs.puppetlabs.com/puppet/latest/reference/configuration.html for the full list of acceptable
parameters. A commented list of all configuration options can also be generated by running puppet with
--genconfig.
--render-as FORMAT
The format in which to render output. The most common formats are json, s (string), yaml, and
console, but other options such as dot are sometimes available.
--verbose
Whether to log verbosely.
--debug
Whether to log debug information.
ACTIONS
• destroy - Destroy named certificate or pending certificate request.: SYNOPSIS
puppet ca destroy
DESCRIPTION
Destroy named certificate or pending certificate request.
• fingerprint - Print the DIGEST (defaults to the signing algorithm) fingerprint of a host´s
certificate.: SYNOPSIS
puppet ca fingerprint [--digest ALGORITHM]
DESCRIPTION
Print the DIGEST (defaults to the signing algorithm) fingerprint of a host´s certificate.
OPTIONS --digest ALGORITHM - The hash algorithm to use when displaying the fingerprint
• generate - Generate a certificate for a named client.: SYNOPSIS
puppet ca generate [--dns-alt-names NAMES]
DESCRIPTION
Generate a certificate for a named client.
OPTIONS --dns-alt-names NAMES - A comma-separated list of alternate DNS names for Puppet Server.
These are extra hostnames (in addition to its certname) that the server is allowed to use when
serving agents. Puppet checks this setting when automatically requesting a certificate for Puppet
agent or Puppet Server, and when manually generating a certificate with puppet cert generate.
In order to handle agent requests at a given hostname (like "puppet.example.com"), Puppet Server
needs a certificate that proves it´s allowed to use that name; if a server shows a certificate that
doesn´t include its hostname, Puppet agents will refuse to trust it. If you use a single hostname for
Puppet traffic but load-balance it to multiple Puppet Servers, each of those servers needs to include
the official hostname in its list of extra names.
Note: The list of alternate names is locked in when the server´s certificate is signed. If you need
to change the list later, you can´t just change this setting; you also need to:
• On the server: Stop Puppet Server.
• On the CA server: Revoke and clean the server´s old certificate. (puppet cert clean <NAME>)
• On the server: Delete the old certificate (and any old certificate signing requests) from the ssldir
https://docs.puppetlabs.com/puppet/latest/reference/dirs_ssldir.html.
• On the server: Run puppet agent -t --ca_server <CA HOSTNAME> to request a new certificate
• On the CA server: Sign the certificate request, explicitly allowing alternate names (puppet cert sign
--allow-dns-alt-names <NAME>).
• On the server: Run puppet agent -t --ca_server <CA HOSTNAME> to retrieve the cert.
• On the server: Start Puppet Server again.
To see all the alternate names your servers are using, log into your CA server and run puppet cert list
-a, then check the output for (alt names: ...). Most agent nodes should NOT have alternate names; the
only certs that should have them are Puppet Server nodes that you want other agents to trust.
• list - List certificates and/or certificate requests.: SYNOPSIS
puppet ca list [--[no-]all] [--[no-]pending] [--[no-]signed] [--digest ALGORITHM] [--subject PATTERN]
DESCRIPTION
This will list the current certificates and certificate signing requests in the Puppet CA. You will
also get the fingerprint, and any certificate verification failure reported.
OPTIONS --[no-]all - Include all certificates and requests.
--digest ALGORITHM - The hash algorithm to use when displaying the fingerprint
--[no-]pending - Include pending certificate signing requests.
--[no-]signed - Include signed certificates.
--subject PATTERN - Only include certificates or requests where subject matches PATTERN.
PATTERN is interpreted as a regular expression, allowing complex filtering of the content.
• print - Print the full-text version of a host´s certificate.: SYNOPSIS
puppet ca print
DESCRIPTION
Print the full-text version of a host´s certificate.
• revoke - Add certificate to certificate revocation list.: SYNOPSIS
puppet ca revoke
DESCRIPTION
Add certificate to certificate revocation list.
• sign - Sign an outstanding certificate request.: SYNOPSIS
puppet ca sign [--[no-]allow-dns-alt-names]
DESCRIPTION
Sign an outstanding certificate request.
OPTIONS --[no-]allow-dns-alt-names - Whether or not to accept DNS alt names in the certificate
request
• verify - Verify the named certificate against the local CA certificate.: SYNOPSIS
puppet ca verify
DESCRIPTION
Verify the named certificate against the local CA certificate.
COPYRIGHT AND LICENSE
Copyright 2011 by Puppet Inc. Apache 2 license; see COPYING