[root@alicia ~]# yum install ypserver
[root@alicia ~]# rpm -qa | grep yp
ypbind-1.19-12.el5_6.1
ypserv-2.19-10.el5_9.1
yp-tools-2.9-2.el5

[root@alicia ~]# nisdomainname nis
[root@alicia ~]# vi /etc/sysconfig/network
  1 NETWORKING=yes
  2 NETWORKING_IPV6=yes
  3 HOSTNAME=alicia.net
  4 NISDOMAIN=nis

[root@alicia ~]# vi /etc/rc.d/rc.local 
  1 #!/bin/sh
  2 #
  3 # This script will be executed *after* all the other init scripts.
  4 # You can put your own initialization stuff in here if you don‘t
  5 # want to do the full Sys V style init stuff.
  6 
  7 touch /var/lock/subsys/local
  8 nisdomainname nis

[root@alicia ~]# vi /etc/ypserv.conf 
 50 127.0.0.1/255.255.255.0    : *       : *                : none
 51 10.8.118.0/255.255.255.0    : *       : *                : none
 52 *                          : *        : *                : deny

[root@alicia ~]# useradd nis
[root@alicia ~]# passwd nis
Changing password for user nis.
New UNIX password: 
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password: 
passwd: all authentication tokens updated successfully.

[root@alicia ~]# service ypserv restart
Stopping YP server services:                               [FAILED]
Starting YP server services:                               [  OK  ]
[root@alicia ~]# /usr/lib/yp/ypinit -m 

At this point, we have to construct a list of the hosts which will run NIS
servers.  centos is in the list of NIS server hosts.  Please continue to add
the names for the other hosts, one per line.  When you are done with the
list, type a <control D>.
        next host to add:  centos
        next host to add:  alicia.net
        next host to add:  alicia
        next host to add:  
The current list of NIS servers looks like this:

centos
alicia.net
alicia

Is this correct?  [y/n: y]  y
We need a few minutes to build the databases...
Building /var/yp/nis/ypservers...
Running /var/yp/Makefile...
gmake[1]: Entering directory `/var/yp/nis‘
Updating passwd.byname...
Updating passwd.byuid...
Updating group.byname...
Updating group.bygid...
Updating hosts.byname...
Updating hosts.byaddr...
Updating rpc.byname...
Updating rpc.bynumber...
Updating services.byname...
Updating services.byservicename...
Updating netid.byname...
Updating protocols.bynumber...
Updating protocols.byname...
Updating mail.aliases...
gmake[1]: Leaving directory `/var/yp/nis‘

centos has been set up as a NIS master server.

Now you can run ypinit -s centos on all slave server.

[root@alicia ~]# service ypserv restart
Stopping YP server services:                               [  OK  ]
Starting YP server services:                               [  OK  ]
[root@alicia ~]# service yppasswdd restart
Stopping YP passwd service:                                [FAILED]
Starting YP passwd service:                                [  OK  ]

[root@Samsun ~]# rpm -qa | grep yp
yp-tools-2.9-2.el5
ypbind-1.19-12.el5_6.1

[root@Samsun ~]# nisdomainname nis
[root@Samsun ~]# vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=Samsun
NISDOMAIN=nis

[root@Samsun ~]# vi /etc/rc.d/rc.local 
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don‘t
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local
domainname nis
~

[root@Samsun ~]# vi /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               centos localhost.localdomain localhost Samsun Samsun.net
::1             localhost6.localdomain6 localhost6
10.8.118.100    alicia.net

[root@alicia ~]# vi /etc/yp.conf 

 22 ypserver alicia.net
 23 domain nis

[root@alicia ~]# vi /etc/nsswitch.conf 

 28 # Example:
 29 #passwd:    db files nisplus nis
 30 #shadow:    db files nisplus nis
 31 #group:     db files nisplus nis
 32 
 33 passwd:     files nis
 34 shadow:     files nis
 35 group:      files nis

[root@alicia ~]# service ypbind restart
Shutting down NIS services:                                [FAILED]
Binding to the NIS domain:                                 [  OK  ]
Listening for an NIS domain server.

Linux NIS server