To test the host certificate, on a client system, ensure the client has set up the global `/etc/ssh/known_hosts` file, as described in xref:OpenSSH.adoc#proc-Trusting_the_Host_Signing_Key[Trusting the Host Signing Key], and that the server's public key is not in the `~/.ssh/known_hosts` file. Then attempt to log into the server over SSH as a remote user. You should not see a warning about the authenticity of the host. If required, add the [option]`-v` option to the SSH command to see logging information.