Specifying NIS+ Global Server Preferences

You can set global server preferences for a local or remote domain. Preferences may be set for individual machines and all the machines on a subnet.

The procedures in this section describe how to specify server preferences in a global client_info table residing on the NIS+ domain's master server. Once the table exists on the master server, NIS+ replicates it on to any existing replica servers for the domain.

• See Specifying Local NIS+ Server Preference for information on how to create a local client_info file on an individual machine.

• See NIS+ Global Table or Local File for an explanation of the difference between a global client_info table and a local client_info file.

To assign server preference numbers, run nisprefadm with either the:

• -a option to add new or additional preferred servers.

• -u option to delete existing server preferences and create new ones.

How to Set Global Preferences for an NIS+ Subnet

To assign server preferences in the global table for all the machines on a subnet:

1. Run nisprefadm with the -G and -C subnet options.

   #nisprefadm -G -a -C subnet servers (preferences)

   Where:

   • -C subnet identifies the IP number of the subnet the preferences will apply to.

   • servers(preferences) are one or more servers with optional preference ranking numbers.

     For example, to specify that the subnet 172.22.123.123 uses the nismaster and replica3 servers with a default preference number of zero and the manf.replica6 server with a preference number of 1, type the following.

     polaris# nisprefadm -a -G -C 172.22.123.123 nismaster1 \ replica3 "manf.replica6(1)"

How to Set Global Preferences for an Individual NIS+ Machine

1. Run nisprefadm with the -G, and -C machine options.

   #nisprefadm -G -a -C machine servers (preferences)

   Where:

   • -C machine identifies the machine the preferences will apply to. (Depending on the shell you are using, you may need to enclose machine in quotes.)

   • servers(preferences) are one or more servers with optional preference ranking numbers.

     For example, to replace the current preferences for the machine cygnus with replica7 and replica9 both with a default preference number of zero, type the following.

   polaris# nisprefadm -u -G -C cygnus replica7 replica9

How to Set Global Preferences for a Remote NIS+ Domain

To assign server preferences for an individual machine in a remote domain or all the machines on a subnet in a remote domain:

1. Run nisprefadm with the -C, -G, and -d options.

   #nisprefadm -a -G -C name \ -d domain servers(preferences)

   Where:

   • name is the IP number of a subnet or the name of a machine. The modifications you make with this command apply to the subnet or machine that you name.

   • domainname is the name of the remote domain.

   • servers(preferences) are one or more servers with optional preference ranking numbers.

   For example, to add the nismaster2 server with a default preference number of zero to the preferred server list of the 10.10.111.11 subnet in the remote sales.doc.com domain:

   polaris# nisprefadm -a -G -C 10.10.111.11 -d sales.doc.com. nismaster2