Banner here seems to refer to the 'banner' output of ssh, or telnet, or some other service (those are the most likely however imho). When you connect over serv

Banner here seems to refer to the 'banner' output of ssh, or telnet, or some other service (those are the most likely however imho). When you connect over services, the banner (the first information presented to the client, before authentication) can be configured to include the 'hostname' setting of the server you have connected to. If I am right about that, this means that the hostname setting of the server is still set to localhost, as it is default out of the box until configured.