Rudder

I now get the signature error, so still no correct fallback at that point. It should happens before checking for hostname.

 Rejecting Inventory 'linux-cfe-bad-hostname.ocs' for Node 'baded9c8-902e-4404-96c1-278acca64e3a' because the Inventory signature is not valid: the Inventory was not signed with the same agent key as the one saved within Rudder for that Node. If you updated the agent key on this node, you can update the key stored within Rudder with the https://docs.rudder.io/api/#api-Nodes-updateNodeapi (look for 'agentKey' property). The key path depends of your OS, on linux it's: '/var/rudder/cfengine-community/ppkeys/localhost.pub'. It is also contained in the <AGENT_CERT> value of inventory (you can extract public key with `openssl x509 -pubkey -noout -in - << EOF -----BEGIN CERTIFICATE----- .... -----END CERTIFICATE----- EOF`). If you did not change the key, please ensure that the node sending that inventory is actually the node registered within Rudder

In the inventory:

....
    <OPERATINGSYSTEM>
      ....
      <FQDN>agent1.rudder.local</FQDN>
      ...
    </OPERATINGSYSTEM>
    <RUDDER>
    ...
      <HOSTNAME>localhost</HOSTNAME>    
    </RUDDER>