Install libapache2-mod-authz-unixgroup by entering the following commands in the terminal:
sudo apt update sudo apt install libapache2-mod-authz-unixgroup
Description:
access control based on on unix group membership for Apache
Mod_Authz_Unixgroup is a unix group access control module for Apache 2.1 and later. If you are having users authenticate with real Unix login ID over the net, using something like my mod_authnz_external / pwauth combination, and you want to do access control based on unix group membership, then mod_authz_unixgroup is exactly what you need. . This Package includes the mod-authn-unixgroup Module for Apache Version 2.4
Homepage: http://www.unixpapa.com/mod_authz_unixgroup
Version: 1.1.0-0.1
Section: universe/web