83 lines
2.0 KiB
Bash
83 lines
2.0 KiB
Bash
#!/bin/bash
|
|
# =============================================================================
|
|
# Firewall configuration module
|
|
# =============================================================================
|
|
|
|
# Set script directory
|
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
|
|
|
# Source common functions and variables
|
|
source "./common.sh"
|
|
|
|
# Function to configure UFW
|
|
configure_ufw() {
|
|
log_message "INFO" "Configuring UFW firewall"
|
|
|
|
# Check if UFW is installed
|
|
if ! command_exists ufw; then
|
|
log_message "INFO" "Installing UFW"
|
|
apt-get install -y ufw
|
|
|
|
if [ $? -ne 0 ]; then
|
|
log_message "ERROR" "Failed to install UFW"
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
# Reset UFW to default settings
|
|
log_message "INFO" "Resetting UFW to default settings"
|
|
ufw --force reset
|
|
|
|
# Set default policies
|
|
log_message "INFO" "IPv4 : Setting default UFW policies"
|
|
ufw default deny incoming
|
|
ufw default allow outgoing
|
|
|
|
# Allow SSH on custom port
|
|
log_message "INFO" "IPv4 : Allowing SSH on port 22"
|
|
ufw allow 22/tcp
|
|
|
|
# Allow HTTP/HTTPS for web services if needed
|
|
log_message "INFO" "IPv4 : Allowing HTTP/HTTPS ports"
|
|
ufw allow 80/tcp
|
|
ufw allow 443/tcp
|
|
|
|
# Allow SNMP for monitoring
|
|
log_message "INFO" "IPv4 : Allowing SNMP port for monitoring"
|
|
ufw allow 161/udp
|
|
|
|
# Allow NRPE for monitoring
|
|
log_message "INFO" "IPv4 : Allowing NRPE port for monitoring"
|
|
ufw allow 5666/tcp
|
|
|
|
# Allow IPv6 if needed
|
|
log_message "INFO" "IPv6 : Setting default UFW policies"
|
|
ufw allow in on lo
|
|
ufw allow out on lo
|
|
ufw deny in from ::/0
|
|
ufw allow out to ::/0
|
|
|
|
# Enable log
|
|
log_message "INFO" "Enabling logging for UFW"
|
|
ufw logging on
|
|
|
|
# Enable UFW
|
|
log_message "INFO" "Enabling UFW"
|
|
echo "y" | ufw -force enable
|
|
|
|
if [ $? -eq 0 ]; then
|
|
log_message "SUCCESS" "UFW enabled successfully"
|
|
else
|
|
log_message "ERROR" "Failed to enable UFW"
|
|
return 1
|
|
fi
|
|
|
|
# Show UFW status
|
|
log_message "INFO" "UFW status:"
|
|
ufw status verbose
|
|
}
|
|
|
|
# Main execution for firewall
|
|
configure_ufw
|
|
|
|
log_message "SUCCESS" "Firewall configuration completed" |