RHELSecureSetup

This Bash script is designed for RHEL-based Linux distributions. It automates the process of updating the system, configuring security settings, and optionally installing Docker CE.

Features

Updates the package manager and upgrades installed packages.
Sets the system timezone.
Changes the hostname of the machine.
Updates the /etc/hosts file with the machine's IP address and hostname.
Modifies SSH configuration for better security:
- Disables root login.
- Disables password authentication.
- Ensures IPv4 address family is not commented out.
Optionally installs Docker using the official installation script.

Prerequisites

A RHEL-based Linux distribution (e.g., CentOS, Fedora).
Root access or sudo privileges.
dnf or yum package manager.
curl installed (if not present, please install it using your package manager).

Usage

Clone the repository:

git clone https://git.nickhepler.cloud/nick/RHELSecureSetup.git
cd RHELSecureSetup

Make the script executable:
```
chmod +x setup.sh
```
Run the script with root privileges:
```
sudo ./setup.sh
```
Follow the prompts:
- Enter your public SSH key when prompted.
- Choose whether to install Docker CE at the end of the script.

Customization

Time Zone: Modify the timezone variable in the script to set your desired time zone.

License

This project is licensed under the GPL-3.0 License. See the LICENSE file for more details.

Acknowledgments

Inspired by the documentation from Akamai (formerly Linode) for setting up and securing compute instances.

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