Install freeradius-ldap by entering the following commands in the terminal:
sudo apt update sudo apt install freeradius-ldap
Description:
LDAP module for FreeRADIUS server
The FreeRADIUS server can use LDAP to authenticate users, and this module is necessary for that.
Homepage: http://www.freeradius.org/
Version: 3.0.16+dfsg-1ubuntu3
Section: universe/net