Fail2ban Installation and Configuration Ssh and Web Korumasi

Q: 2. Install Firewall Configuration

2. Install Firewall Configuration — See the detailed step-by-step solution in this guide.

Q: 3. Configure firewall

3. Configure firewall — See the detailed step-by-step solution in this guide.

Overview This guide walks you through installing and securing Firewall Configuration on a production Linux server. Each step includes commands for Ubuntu/Debian...

📅 July 3, 2026 👁 1 views ⏱ 1 min read

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Overview

This guide walks you through installing and securing Firewall Configuration on a production Linux server. Each step includes commands for Ubuntu/Debian and AlmaLinux/RHEL families.

Prerequisites

Root or sudo access via SSH
A registered domain (optional but recommended)
Updated system packages

Installation Steps

1. Update the system

sudo dnf update -y    # AlmaLinux/RHEL
sudo apt update && sudo apt upgrade -y   # Debian/Ubuntu

2. Install Firewall Configuration

Follow vendor documentation for your distribution. Enable and start the service:

sudo systemctl enable --now nginx

3. Configure firewall

sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https
sudo firewall-cmd --reload

4. Verify

Open the server IP or domain in a browser and confirm a successful response.

Security Recommendations

Keep packages updated and monitor logs daily.
Use SSH keys instead of password authentication.
Enable automatic security updates where possible.

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