how to install server
 

i have problem regarding the installation of smbha and dhcp server plz tell me

No, not unless you can actually write a good post and tell us something useful about the problems you are having. There are thousands of things that could be cuasing you problems. Are you just expecting us to recite you tutorials on how to do this?

i have problem regarding the installation of nfs server
sm using fedora 11
i will manually maount cd drive in /mnt
all the time whaen 1 write a command cp -ar /mnt /opt
it will give an err or cant create dir /opt/mnt
access deline
plz help me

Please write properly.

You need to read up on linux file permissions. Here's a good, simple introduction:
Learning the shell: Permissions