Single Hosts File

Starting with this release, the Solaris OS does not have two separate hosts files. /etc/inet/hosts is the single hosts file that contains both IPv4 and IPv6 entries. Solaris system administrators do not need to maintain IPv4 entries in two hosts files that are always synchronized. For backward compatibility, the /etc/inet/ipnodes file is replaced with a symbolic link of the same name to /etc/inet/hosts.

For more information, see the hosts(4) and the ipnodes(4) man pages.