Install libapache2-mod-defensible by entering the following commands in the terminal:
sudo apt update sudo apt install libapache2-mod-defensible
Description:
module for Apache2 which provides DNSBL usage
mod_defensible implements usage of DNSBL servers to block access to a Web site or to specific locations. . This package provides the module for Apache 2 server.
Version: 1.4-3.1ubuntu2
Section: universe/web