Puppet in action

Client-server communication is done using REST-like API calls on a SSL socket, basically it's all HTTPS traffic from clients to the server's port 8140/TCP.

The first time we execute Puppet on a node, its x509 certificates are created and placed in ssldir, and then the Puppet Master is contacted in order to retrieve the node's catalog.

On the Puppet Master, unless we have autosign enabled, we must manually sign the clients' certificates using the cert subcommand:

puppet cert list # List the unsigned clients certificates
puppet cert list --all # List all certificates
puppet cert sign <certname> # Sign the given certificate

Once the node's certificate has been recognized as valid and been signed, a trust relationship is created and ...

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