LDAP
Source: linuxbabe.com
Install OpenLDAP Server
sudo apt install slapd ldap-utils systemctl status slapd sudo dpkg-reconfigure slapd sudo nano /etc/ldap/ldap.conf sudo nano /etc/ldap/ldap.conf ldapsearch -x
phpLDAPadmin
sudo apt install phpldapadmin sudo nano /etc/phpldapadmin/config.php