FortiClient VPN-only Debian 13 (Trixie) Installation

forticlient_vpn_only_debian_13_install.sh

#!/bin/bash
# This script downloads and installs latest FortiClient VPN-only Debian 13 (Trixie).
# It resolves the redirected download URL, installs required dependencies.

set -e  # Stop on error

generic_url='https://links.fortinet.com/forticlient/deb/vpnagent'
tmp_dir=/tmp/forticlient_vpn

# Create temporary directory
mkdir -p "$tmp_dir"

# Resolve the final package URL
echo "Resolving FortiClient VPN download URL..."
url=$(curl -Ls -o /dev/null -w '%{url_effective}' "$generic_url")

# Show resolved URL
echo "Downloading package from: $url"

# Download the .deb package to the temp directory
wget -q -P "$tmp_dir" "$url"

# Install missing dependency and FortiClient VPN package
echo "Installing desktop-file-utils and FortiClient VPN..."
apt install -y desktop-file-utils "$tmp_dir"/forticlient_vpn_*.deb

# Verify installation
echo "Verifying FortiClient installation..."
dpkg -l | grep forticlient || echo "FortiClient installation failed."

echo "Installation complete."