[PLUG] Error in login as a LDAP user

[अमेय साठे]

Hi,
I followed all the LDAP steps exactly as detailed on this link(Linux Home Networking)
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch31_:_Centralized_Logins_Using_LDAP_and_RADIUS

All the output is coming proper,except chown. The output of the command chown ldapuser /home/ldapuser gave me this error

>>chown: `ldapuser':invalid user<<

I am able to telnet to LDAP server from the client. 
tcpdump and tethereal commands are showing traffic flow from LDAP client to LDAP server and viceversa.
I also implemented the steps detailed on this link.

http://www.linuxquestions.org/questions/linux-server-73/chown-fails-in-client-login-for-user-defined-in-ldap-server-508416/

But to no avail :(.
With Warm Regards,

Ameya Sathe

Blog: http://www.linuxquestions.org/blog/mr.-ameya-sathe-352399/