After the FNS namespace has been set up on the master server, additional replicas can be added in each domain to serve the domain's ctx_dir directory. Replicas enhance availability and performance of the servers.
Run the nismkdir command on the FNS master server to add a replica for the ctx_dir directory.
For example, establish the machine fnsrserver as an FNS replica for the doc.com. domain:
# nismkdir -s fnsrserver ctx_dir.doc.com. |
Checkpoint the ctx_dir directory with the nisping command.
# /usr/lib/nis/nisping -C ctx_dir.doc.com. |
FNS replicas should be checkpointed at regular intervals. The recommended period is every few days. The period you choose depends on how frequently changes are made to the FNS namespace.