No Match for argument: ypserv

Am facing same issue not able to fix yet

Heres what i have done.

[root@localhost etc]# rpm -qa | grep ^yp
yp-tools-2.9-0.1
ypbind-1.19-7.el5
[root@localhost etc]# yum install ypserv
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Setting up repositories
rpmforge 100% |=========================| 1.1 kB 00:00
Reading repository metadata in from local files
primary.xml.gz 100% |=========================| 3.6 MB 00:32
################################################## 10069/10069
Parsing package install arguments
No Match for argument: ypserv
Nothing to do
[root@localhost etc]#

Am i missing anything ? What is going wrong here?
Can anyone please help me with this?

Code:

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This system is not registered with RHN.
RHN support will be disabled.

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:rolleyes:

You don't have access to RedHat repo's. No current repo's you have access to have a ypserv package.

Add a repo that has the ypserv package, or register your machine for support with RedHat.