import users from LDAP to local password file (pwd.db)

[Frank Bonnet]

Hello

I need to import the necessary users's data  from an OpenLDAP directory 
server
to put them in the local password files , anyone has done this before ?

The machine use nss_ldap and pam_ldap to authenticate users but for 
robustness
during the holidays I would like to have a local password file on this 
machine which
is our mailhub.

The OpenLDAP server runs on another machine and if it fails during 
holidays I want
my mailhub to be standalone for authentication in order to let email 
service running
even the directory server crash.

Thanks