> For the complete documentation index, see [llms.txt](https://docs.nebulablock.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nebulablock.com/core-services/overview-1/quickstart.md).

# Quickstart

## Log In or Sign Up

* If you have an account, log in with Google or email/password.
* If you’re new to Nebula Block, create an account for free.

## Create a GPU Instance

* Choose a Location
  * Select the preferred region for your instance to optimize performance and minimize latency.
* Select Hardware Configuration
  * Choose from the available GPU options:
    * NVIDIA H100: Best for large-scale AI model training.
    * NVIDIA A100: Ideal for AI/ML workloads and data analytics.
    * NVIDIA L40s: A more budget-friendly option for complex tasks like AI inference and graphics workloads.
    * RTX A6000: Great for 3D rendering, simulations, and visualization.
    * RTX 4090: A great cost-effective option for demanding GPU tasks.
* Choose an Operating System/Image
* Select an SSH Public Key (if applicable)
  * Create or select an existing SSH public key for secure access to the instance.
  * Note that some instances may not support SSH Public Keys yet, in which case a secure username and password will be provided to you.
* Set a Server Name
  * Assign a meaningful name to your instance for easy identification.
* Deploy
  * Review your configuration and click "Deploy". Your instance will be provisioned and ready within minutes.

## Connect to Your GPU Instance

**SSH Key Authentication**

Once your instance is running, connect to it using SSH:

```bash
ssh -i /path/to/your/private/key username@instance-ip
```

* Replace `/path/to/your/private/key` with the path to your private SSH key.
* Replace `username` with the username of your instance, and replace `instance-ip` with the public IP Address of your instance. You can find the username and Public IP Address information in your instance detail page.

**Password Authentication**

Once your instance is running, connect to it using SSH:

```bash
ssh username@instance-ip
```

* You'll then be prompted for your password. Simply enter it and press Enter.
* Replace `username` with the username of your instance, and replace `instance-ip` with the public IP Address of your instance.
* You can find the username, password and Public IP Address in your instance detail page.

## Manage Your Instance

* Access the Dashboard
  * Use the Instances section in your Nebula Block dashboard to view all active instances.
  * Click "View" button to view the details of the instance.
* Actions
  * User the dashboard controls to manage instance states: Power on, Power off, Reboot or Terminate Instances (note that some instances may only support the Terminate action).