Planning for Network Deployment in Oracle® Solaris 11.2

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Updated: July 2014

Administering Host Names

Plan a naming scheme for the systems that will comprise the network. Each machine on the network should have a TCP/IP host name that corresponds to the IP address on its primary network interface. The host name must be unique within the system's sub-domain. Just like physical machines, virtual systems should also have a unique IP address and host name.

    A system can have the following:

  • Multiple host names that map to the system's IP address. For example, can also be known as

  • The same host name for both IPv4 and an IPv6 addresses.

  • A new IP address and an old deprecated IP address that are configured with the same host name for a period of time to support network renumbering.

  • Multiple network interfaces on different subnets, each with a unique IP address and host name.

When planning your network, make a list of IP addresses and their associated host names for easy access during the setup process. The list can help you verify that all host names are unique.

Note -  The primary interface's TCP/IP host name is a distinct entity from the system host name that you set with the hostname command. Although not required by Oracle Solaris, the same name is normally used for both. Some network applications depend on this convention. See the hostname (1) man page for more information.