/usr/bin/passwd offers a "safe way" for root to edit /etc/passwd (or shadow). If setuid it allows regular users to change passwd without asking root to do changes for them.
(note: does have learning curve on args to choose)
gnupasswd - gnu change user password
gnugpasswd - gnu change group password
gnupasswd(1) has a goal to work with older login.c/linux and some newer too, also "getpwent" (any glibc). or help convert.
gnupassd does pass only: leaves all else alone (compat). ...
Migrate an ldap with nis schema to rfc2307bis schema
A short script written in Python to migrate an ldap ldif file with nis schema to rfc2307bis schema.
Synthax:
./ldap_nis_2_rfc2307bis.py <source ldif file> <dest ldif file>
Tools for converting a Unix/Linux NIS environment to IPA (http://www.freeipa.org). Currently supports importing passwd, group, group members, hosts and netgroup NIS maps into IPA. IPA already contains support for importing automount maps.
MACOW is a formal and scalable mandatory access implementation suitable on open worlds such as the provided on Semantic Web, Autonomic Computing and Coaltions and Federations scenarios. It is able to access control on distributed systems.