How to setup the same user/passwd and group on multiple ubuntu machines?

[Peng Yu]

Hi,

I have a number of ubuntu machines on a network. I want to have a
simple way so that each machine has the same user/passwd and group. I
don't want to set user/passwd and group repeatedly on each machine, as
this is not manageable when the number of machines increase.

LDAP seems to be relevant. But I can't find a complete easy-to-follow
recipe for user/passwd and group setup purpose. Could anybody point me
some good resource? Thanks.

-- 
Regards,
Peng