a)yum install bind bind-chroot bin-utils
b) go to /usr/share/doc/bind-9.3.6/sample [ here all the sample files should be installed]
c)cp -R var/* /var/named/chroot/
d)cp -R etc/* /var/named/chroot/
cp /usr/share/doc/bind-9.3.6/sample/etc/named.conf /var/named/chroot/etc/
[note : if named.conf is not that location then type : locate named.conf, it will show you where is the named.conf]