HP-UX IPv6 Transport Administrator's Guide for TOUR 2.0 (April 2004, rev 2)

Configuration
Host Names and IPv6 Addresses
Chapter 332
ipnodes: dns [NOTFOUND=continue] files
Or if /etc/hosts is to be the primary Name Service, the entry would be
set as follows:
ipnodes: files [NOTFOUND=continue] dns
NOTE You can not specify NIS or NIS+ on the ipnodes entry.
Manually editing nsswitch.conf
If the current system has no nsswitch.conf file, use a text editor to
create an /etc/nsswitch.conf file containing one of the following lines,
or copy the /etc/nsswitch.defaults file and modify as needed.
If DNS is the primary Name Service, but not necessarily the definitive
source, and files (/etc/hosts) may need to be used for address and host
name resolution, add:
ipnodes: dns [NOTFOUND=continue] files
Or if /etc/hosts is to be the primary Name Service, add:
ipnodes: files [NOTFOUND=continue] dns
Refer to the nsswitch.conf(4) man page for more information.