Install Apache HTTP Server on Debian 12

Step 1 – Install Apache

apt update && apt upgrade -y
apt install -y apache2

Step 2 – Start and enable the service

systemctl enable --now apache2

Step 3 – Open firewall ports

ufw allow 'Apache Full'
ufw reload

Step 4 – Verify

curl -I http://localhost

The main configuration file is /etc/apache2/apache2.conf and virtual-host definitions belong in /etc/apache2/sites-available/.

Apache version

apachectl -v