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README.md
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---
## 📌 Overview
## Overview
This script automates the initial setup and security hardening of a fresh Debian or Ubuntu server. It is designed to be **idempotent**, **safe**, and suitable for **production environments**, establishing a secure baseline from which to build upon.
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---
## ✨ Features
## Features
- **Secure User Management:** Creates a new administrator user with `sudo` privileges and disables the root account's SSH access.
- **SSH Hardening:** Configures the SSH server to use a custom port, disable password authentication (enforcing key-based login), and apply other security best practices.
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---
## 🚀 Installation & Usage
## Installation & Usage
### Prerequisites
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### 1. Download the Script
```bash
wget [https://raw.githubusercontent.com/buildplan/setup_harden_server/refs/heads/main/setup_harden_debian_ubuntu.sh](https://raw.githubusercontent.com/buildplan/setup_harden_server/refs/heads/main/setup_harden_debian_ubuntu.sh)
wget https://raw.githubusercontent.com/buildplan/setup_harden_server/refs/heads/main/setup_harden_debian_ubuntu.sh
chmod +x setup_harden_debian_ubuntu.sh
```
@@ -68,7 +68,7 @@ sudo ./setup_harden_debian_ubuntu.sh --quiet
---
## 🗂️ What It Does in Detail
## What It Does in Detail
| Task | Description |
| ----------------------- | --------------------------------------------------------------------------- |
@@ -86,18 +86,18 @@ sudo ./setup_harden_debian_ubuntu.sh --quiet
---
## 🪵 Logs & Backups
## Logs & Backups
- **Log Files:** `/var/log/setup_harden_debian_ubuntu_*.log`
- **Configuration Backups:** `/root/setup_harden_backup_*`
---
## 🧪 Tested On
## Tested On
- Debian 12
- Ubuntu 24.04 LTS, 22.04 LTS
- Common cloud providers (DigitalOcean, AWS, GCP, Oracle Cloud) and local VMs.
- Ubuntu 24.04 LTS
- Cloud providers (DigitalOcean & Oracle Cloud) and local VMs.
---
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---
## 🛠️ Troubleshooting
## Troubleshooting
### SSH Lockout Recovery