NIS Daemons Not Running

If the servers are up and running, try to find a client machine behaving normally, and run the ypwhich command. If ypwhich does not respond, kill it. Then log in as root on the NIS server and check if the NIS ypbind process is running by entering the following.

# ps -e | grep yp

Do not use the -f option with ps because this option attempts to translate user IDs to names which causes more naming service lookups that might not succeed.

If either the ypbind or ypserv daemons are not running, kill them and then restart them by entering the following.

# /usr/lib/netsvc/yp/ypstop
# /usr/lib/netsvc/yp/ypstart

If both the ypserv and ypbind processes are running on the NIS server, use ypwhich.

If ypwhich does not respond, ypserv has probably hung and should be restarted. While logged in as root on the server, kill ypserv and restart it by typing the following.

# /usr/lib/netsvc/yp/ypstop
# /usr/lib/netsvc/yp/ypstart