Install libapache2-mod-auth-kerb by entering the following commands in the terminal:
sudo apt update sudo apt install libapache2-mod-auth-kerb
Description:
apache2 module for Kerberos authentication
An apache2 module for authenticating users in a Kerberos realm. It supports basic user and password authentication or a negotiate auth based on Kerberos tickets.
Version: 5.4-2.3
Section: universe/web