This repository contains an all-in-one installer script for setting up ClamAV with real-time (on-access) scanning on Ubuntu Linux. Testing working on Ubuntu 22.04, 24.04, and 25.04. Ensure you have at least 4GB of ram and ideally run an "apt update && apt full-upgrade -y" followed by a reboot before installing.
By default, the script enables on-access scanning for the entire filesystem (/).
This can be heavy on performance and I/O. In production, you may want to restrict it to user data directories (e.g. /home, /var/www).
- Installs ClamAV (
clamav,clamav-daemon) - Updates virus definitions (
freshclam) - Configures and enables the
clamav-daemonservice - Creates a systemd unit for on-access scanning using
fanotify - Detects if a reboot is required after a kernel upgrade and schedules it automatically
Clone this repo and run the installer:
cd /opt
git clone https://github.com/david-pitre-csiq/Linux-Scripts
cd Linux-Scripts
chmod +x install_clamav_onaccess.sh
./install_clamav_onaccess.sh