Enable slave NIS server steps

Reference:
http://linux.vbird.org/linux_server/0430nis.php#nis_server_master
http://paching.myweb.hinet.net/lesson15.htm
http://www.mattiasholm.com/?p=338

Server side:
1. vi /etc/sysconfig/network

NISDOMAIN=mynisdomain   <==設定 NIS 領域名稱
YPSERV_ARGS="-p 1011"   <==設定 NIS 每次都啟動在固定的埠口

2. /etc/ypserv.conf 用預設值即可
dns: no
files: 30
slp: no
slp_timeout: 3600
xfr_check_port: yes
*                          : *       : shadow.byname    : port
*                          : *       : passwd.adjunct.byname : port

3. vi /etc/hosts 確定 master, slave NIS都在 hosts 裡面。
192.168.100.1 master
192.168.100.2 slave

4. vi /etc/sysconfig/yppasswdd
YPPASSWDD_ARGS="--port  1012"

5. start NIS service
/etc/init.d/ypserv start
/etc/init.d/yppasswdd start
chkconfig ypserv on
chkconfig yppasswdd on

6. check NIS service
rpcinfo -p localhost
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100004    2   udp   1011  ypserv
    100004    1   udp   1011  ypserv
    100004    2   tcp   1011  ypserv
    100004    1   tcp   1011  ypserv
    100009    1   udp   1012  yppasswdd

rpcinfo -u localhost ypserv
program 100004 version 1 ready and waiting
program 100004 version 2 ready and waiting

7. sync YP from master
/usr/lib64/yp/ypinit -s master

8. check slave DB in /var/yp/mynisdomain

Client side:
vi /etc/yp.conf
domain mynisdomain server master
domain mynisdomain server slave

2013/2/1 update:
Linux client automount doesn't work after reboot.
The client is bind to NIS slave. (run ypwhich to check)
Run ypcat auto.master getting error message "No such map auto.master. Reason: Internal NIS error".
The file auto.master isn't in NIS slave /var/yp/mynisdomain.

Solution:
1. Modify file auto.master in NIS master directory /etc. (The file time must be changed.)
2. cd /var/yp; make (This will push auto.master to NIS slave.)
3. run "service autofs restart" in client for automount.