Notes on Configuring a NIS Master and NIS Clients              10-25-2005

I set up the Eagan machines to mimic what EDC had.
  rhino = NIS Master
  domain = delphion.com
  client machines = esearch1, eworker1, eworker2, lizard, skunk, walrus

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On the NIS master, the default is to take that machine's /etc/passwd and
/etc/groups file to create the master file for the NIS cluster.  This means
that to add or remove an NIS userid, or to change its group memberships,
you need to login to the NIS master and use the normal AIX commands to
add or change or delete.

To set up the master NIS server, as root,

1) Make sure the master's /etc/passwd & /etc/groups file is the way you want.

2) Set the NIS domain via chypdom -B delphion.com

3) Run mkmaster -OPU

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On each client machine, 

1) Set the NIS domain via chypdom -B delphion.com
   (You can use the domainname command to see what it is now.)
   This modifies /etc/rc.nfs to set the NIS domain at boot time.

2) Run mkclient -B -S rhino
   (or mkclient -B -S dind1.edc.delphion.com in EDC)
   This adds a + line to /etc/passwd & /etc/group and modifies /etc/rc.nfs
   to properly start the NIS client processes.

3) If this machine has userid entries in its local /etc/passwd file that
   duplicate what you want kept in NIS, vi /etc/passwd and remove them.

4) Same thing for /etc/group.  If there are groups there that you want
   maintained in NIS, vi /etc/group and delete.

5) For quicker binding to the NIS server(s) and to identify the secondary
   NIS servers,
      vi /var/yp/binding/delphion.com/ypservers
   and put in the IP addresses of your NIS servers.  In EDC, this is
      10.225.48.109
      10.225.48.124
   which is dind1 and dind2.

6) If this machine was an AFS client, vi /etc/security/user
   and change the default: clause
       from SYSTEM = "AFS OR (AFS[UNAVAIL] AND compat[SUCCESS])"
       to   SYSTEM = "compat"
   and remove the registry = DCE line.

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Although in Eagan I didn't create an NIS slave in case rhino went down,
in EDC, dind2 is an NIS slave of dind1.  In EDC then, to manually update
a NIS-controlled file (say you added a userid or changed a group),

As root on dind1,
   cd /var/yp
   make

To immediately push to the slave, dind2,
   yppush