The orchestration script will check for a properly configured hostname.
You may receive a warning when the orchestration script runs, informing you that the hostname cannot be resolved.
Because the message is only a warning, the orchestration script will continue to run. However, the warning may indicate problems with later starting Endeca Server. You, therefore, should check that the /etc/hosts file includes a mapping from the site-local, externally resolvable IP address to FQDN, or the first portion of the correct, Fully Qualified Domain Name. If /etc/hosts includes a mapping to localhost, it should not be the only entry, or the first entry in this file. Do not use any other OS-specific methods for determining the hostname — only use the configuration in /etc/hosts. This is because the mappings in /etc/hosts always override the mappings from DNS (even if they are present), and Endeca Server relies on /etc/hosts.
For further details, see the "Hostname resolution in the Endeca Server" topic in Chapter 2 of the Oracle Endeca Server Administrator's Guide.