All about Debian JP Admin
LDAP management

Each machines are distributed
Account managed by LDAP
Create files from LDAP
in /org/db.debian.or.jp/db/<hostname>/
passwd, shadow, group, .forward
.ssh/authorized_keys
Copy files via ssh
to <hostname>:/var/lib/misc/<hostname>
build db using /var/lib/misc/Makefile
Using NSS db (libnss-db)
passwd:         compat db
group:          db compat
shadow:         compat db