This is nss-ldapd, a library for doging NSS name lookups using an LDAP server. nss-ldapd is a fork from nss_ldap which was orignally written by Luke Howard of PADL Software Pty Ltd. http://www.padl.com/OSS/nss_ldap.html In 2006 Arthur de Jong of West Consuling forked the library to split it into a thin NSS part and a server part. Most of the code was rewritten. http://ch.tudelft.nl/~arthur/nss-ldapd/ Arthur de Jong is both the upstream and Debian package maintainer, so there are no differences between the Debian package and the upstream version. The Debian package of nss-ldapd was partially based on packaging of the libnss-ldap package. The libnss-ldap package was maintained by Ben Collins, Davide Puricelli (evo), Sami Haahtinen and Stephen Frost. Copyright (C) 1997-2006 Luke Howard Copyright (C) 2006 West Consulting Copyright (C) 2006 Arthur de Jong This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. On Debian GNU/Linux systems, the complete text of the GNU Library General Public License can be found in /usr/share/common-licenses/LGPL-2. The following files are also contain other copyright holders (apart from to autoconf/automake stuff): debian/po/ca.po: Copyright (C) 2004 Free Software Foundation, Inc. debian/po/vi.po: Copyright (C) 2005 Free Software Foundation, Inc. nslcd/netgroup.c: Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. nslcd/pagectrl.c: Copyright (C) 2002 Max Caines, All Rights Reserved. nslcd/resolve.c: Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Hvgskolan nslcd/resolve.h: Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Hvgskolan