# SecureInstanceSetup

## Overview

**SecureInstanceSetup** is a script designed to set up and secure a compute instance on RHEL-based distributions. This script ensures that your instance is up-to-date, secure, and ready for use.

## Features

- Updates the system packages.
- Sets the timezone and hostname.
- Modifies SSH configuration to enhance security.
- Updates the `/etc/hosts` file with the instance's IP address and hostname.
- Prompts for a public SSH key for secure access.

## Prerequisites

- A RHEL-based Linux distribution (e.g., CentOS, Fedora, RHEL).
- Root access or sudo privileges.
- `dnf` or `yum` package manager.

## Usage

1. **Clone the repository:**

   ```bash
   git clone https://git.nickhepler.cloud/nick/RHELSecureInstanceSetup.git
   cd RHELSecureInstanceSetup
   ```

2. **Make the script executable:**

   ```bash
   chmod +x update_system.sh
   ```

3. **Run the script with root privileges:**

   ```bash
   sudo ./update_system.sh
   ```

4. **Follow the prompts:**
   - Enter your public SSH key when prompted.

## Configuration

- You can customize the `hostname` and `timezone` variables in the script as needed.

## License

This project is licensed under the GNU General Public License v3.0 or later. See the [LICENSE](LICENSE) file for details.


## Contributing

Contributions are welcome! Please submit a pull request or open an issue for any enhancements or bug fixes.

## Acknowledgments

- Inspired by the documentation from Akamai (formerly Linode) for [setting up and securing compute instances](https://techdocs.akamai.com/cloud-computing/docs/set-up-and-secure-a-compute-instance).