| ! Note: at least two user entries in passwd file necessary !
Server
======
- authconfig: enable NIS, domain "fast", server "fast", use shadow, MD5
- /etc/rc.d/init.d/ypserv start
  /etc/rc.d/init.d/ypbind start
- /var/yp/Makefile:
  # shadow -> shadow #
  netgrp   -> # netgrp
- /var/yp/secureent:
  255.255.255.0 10.0.0.0
- /usr/lib/yp/ypinit -m
- Test: ypcat passwd
        ypwhich
        ypmatch stefan passwd
Client
======
- remove users from passwd/shadow
- [brsh] authconfig --enablenis --nisdomain fast --nisserver fast \
                    --useshadow --enablemd5 --kickstart
Update (after useradd)
======================
cd /var/yp; make |