How to Bypass the NIS Name Service

Bypassing the NIS name service protects the Sun Cluster Support for Oracle Real Application Clusters data service against a failure of a cluster node's public network. A failure of a cluster node's public network might cause the NIS name service to become unavailable. If Sun Cluster Support for Oracle Real Application Clusters refers to the NIS name service, unavailability of the name service might cause the Sun Cluster Support for Oracle Real Application Clusters data service to fail.

Bypassing the NIS name service ensures that the Sun Cluster Support for Oracle Real Application Clusters data service does not refer to the NIS name service when the data service sets the user identifier (ID). The Sun Cluster Support for Oracle Real Application Clusters data service sets the user ID when the data service starts or stops the database.

1. Become superuser on all nodes where Sun Cluster Support for Oracle Real Application Clusters can run.

2. On each node, include the following entries in the /etc/nsswitch.conf file.

   passwd: files nis [TRYAGAIN=0] publickey: files nis [TRYAGAIN=0] project: files nis [TRYAGAIN=0] group: files

   For more information about the /etc/nsswitch.conf file, see the nsswitch.conf(4) man page.

Where to Go From Here

Go to How to Create the Database Administrator Group and the Oracle User Account.