Using the sysidcfg File
For the sysidcfg file method, a file for each system is created that contains a set of lines in the form of keyword=value, such as timezone=US/CENTRAL. The file can be available over the network (via NFS) or on disk mounted in the local disk drive.
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The following is a list of information that can be defined in the sysidcfg file:
> Name service (NIS, NIS+, DNS, or none) along with the hostname and IP address of the server
> Domain name
> Network interface (Specify DHCP or specify IP address and netmask instead. Also specify if IPv6 will be used)
> Root password
> System locale
> Terminal (keyboard, mouse, monitor and graphics card type)
> Timezone (timezone and timeserver)
Using NIS
For the name service method, entries for each system are added to the Network Information Service (NIS) or the Network Information Service Plus (NIS+) database.
The following system definition information can be defined in the NIS/NIS+ file:
> Name service (implied)
> Hostname and IP address
> System locale
> Timezone (timezone and timeserver)
A lot more information can be defined in the sysidcfg file that cannot be defined in a name service, including the domain name, most of the network interface parameters (netmask, DCHP usage, and IPv6 usage), the root password, and terminal information (monitor, keyboard, mouse, and so on).
The system locale (specific language and region) is stored in the / etc/locale file and can be specified for the system name or the domain name. For NIS, a locale.byname map can be built by modifying and executing the NIS makefile. The /etc/locale file is used as a source of information for the local.byname map. For NIS+, the nistbladm(IM) command is used to build the locale table and add entries.
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