a2query

Retrieve runtime configuration from Apache on Debian-based OSes. More information: https://manpages.debian.org/latest/apache2/a2query.html.

List enabled Apache modules:

sudo a2query -m

Check if a specific module is installed:

sudo a2query -m {{module_name}}

List enabled virtual hosts:

sudo a2query -s

Display the currently enabled Multi Processing Module:

sudo a2query -M

Display the Apache version:

sudo a2query -v