public String getRemoteHostname() {
        return remoteHostname;
    }
Returns the hostname of the client that sent the associated request, if
known. If the hostname of the client cannot be determined, the address
will be returned instead.

@return
    The hostname or address of the client that sent the request.
guacamole-ext/src/main/java/org/apache/guacamole/net/RequestDetails.java