How to work with NIS daemon not running

From NIS client, you can list the NIS servers with ypwhich command. Sometimes ypwhich command is not working. Below is tips to work with this issue.

1. From NIS client, kill ypwhich process.
   # pkill ypwhich
2. Login as root user on NIS server and check if ypbind and ypserv daemon is running.
   root@solaris-sunray # pgrep -fl yp
   438 /usr/lib/netsvc/yp/rpc.yppasswdd -D /var/yp -m
   132 /usr/lib/crypto/kcfd
   443 /usr/lib/netsvc/yp/ypserv -d
   433 /usr/lib/netsvc/yp/rpc.ypupdated
   435 /usr/lib/netsvc/yp/ypxfrd
   474 /usr/lib/netsvc/yp/ypbind
3. If ypbind or ypserv process is not running on step 2, you must stop and start NIS service.
   root@solaris-sunray # svcadm disable network/nis/server:default

   root@solaris-sunray # svcadm enable network/nis/server:default

4. If ypbind or ypserv process is running on step 2, ypserv process has probably hung. You must kill ypserv process and restart NIS service.
   root@solaris-sunray # pkill ypserv
   root@solaris-sunray # svcadm disable network/nis/server:default

    root@solaris-sunray # svcadm enable network/nis/server:default