[lug] NIS hang

[Daniel Webb]

I am new to NIS, and can't figure out why it hangs "su" when my network goes
down.  This my nsswitch.conf:

passwd:         files nis
group:          files nis
shadow:         files nis

hosts:          files dns nis
networks:       files

protocols:      files db
services:       files db
ethers:         files db
rpc:            files db
----

and there are entries in /etc/passwd and /etc/shadow for root.  So why does
"su" hang?  This is irritating, because it means a reboot if whatever was
wrong requires root to fix.