System Administration Guide: Naming and Directory Services (NIS+)

Keyserver and publickey Entry in the Switch File

Caution – Caution –

You must restart the keyserver after you make a change to nsswitch.conf

The keyserver reads the publickey entry in the name service switch configuration file only when the keyserver is started. As a result, if you change the switch configuration file, the keyserver does not become aware of changes to the publickey entry until it is restarted.