getRemoteHost(): how to get the fully qualified name?

[Philipp . Krummenacher]

Hi all
 
When I call the ServletRequest's getRemoteHost()-method, I get sometimes the
fully quialified name and sometimes the IP of the remote host. This is the
case also, if the fully qualified name is aviable to the Solaris the server
is running on (using nslookup). Now, is there a way to force the
Servlet-Engine to deliver the fully qualified name instead of the IP all the
times? 
 
Thanks for any help.
Philipp