Howtoforge published a tutorial about installing and configuring OpenLDAP and phpLDAPadmin on Ubuntu 20.04.
How to Install and Configure OpenLDAP and phpLDAPadmin on Ubuntu 20.04
LDAP is a Lightweight Directory Access Protocol used for accessing and maintaining distributed directory over an internet protocol.
How to Install and Configure OpenLDAP and phpLDAPadmin on Ubuntu 20.04