Ldap

apt-get install slapd ldap-utils
dpkg-reconfigure slapd

проверяем работу:

ldapsearch -D "cn=admin,dc=mydomain,dc=com" -W

Установка SSP

echo "deb [arch=amd64] https://ltb-project.org/debian/jessie jessie main" > /etc/apt/sources.list.d/ltb-project.list

wget -O - https://ltb-project.org/wiki/lib/RPM-GPG-KEY-LTB-project | sudo apt-key add - 
apt-get update
apt-get install self-service-password

mcedit /usr/share/self-service-password/conf/config.inc.php

Ссылки

• LDAP: Установка и настройка LDAP-сервера
• self-service-password