# How to use PuTTY for SSH key-based authentication

#### Secure Shell (SSH)

**SSH**, or **Secure Shel**l, is a protocol to securely access and manage a computer or device over an unsecured network. It provides a secure channel in an otherwise insecure environment, ensuring confidentiality and integrity of data.

## Setup Putty for SSH key-based authentication

{% embed url="<https://youtu.be/Q_t24zhYsXM?si=38uJFyj1MbbLrps->" %}

#### PuTTY: Secure SSH Connectivity for Windows

**PuTTY** is a widely used, open-source GUI tool to facilitate secure **SSH** connections. It enables users to establish encrypted tunnels for safe communication between Windows computers and remote servers.

### **Download Putty**

PuTTY can be downloaded [here](https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html). Follow these steps to install it:

### Use PuTTY for a basic connection

**Navigate to Puttygen**&#x20;

click on the file&#x20;

<figure><img src="/files/9YhPNWE2qN37z8pcP9UD" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/1sHDzzgQWpTvMeAYyP97" alt=""><figcaption></figcaption></figure>

Choose the All Files option.

<figure><img src="/files/QAQdipV0Ln9ZbWjHOXWu" alt=""><figcaption></figcaption></figure>

To **download**, please select your key.

<figure><img src="/files/deNQkMLCyftk5exbUdyp" alt=""><figcaption></figcaption></figure>

After selecting the **SSH** key, you will see content similar to the following:

Press ok :

<figure><img src="/files/zBYTx9xxLpRRMFiT7n3v" alt=""><figcaption></figcaption></figure>

Save Private key

<figure><img src="/files/e7j7ypmo7x6WdpG3lfKC" alt=""><figcaption></figcaption></figure>

Click yes

<figure><img src="/files/jEfE9Xf8zPPTEc8BZpBO" alt=""><figcaption></figcaption></figure>

### Naming and Saving Your Folder

Ensure your folder has a descriptive and precise name that reflects its contents. Follow these steps to save and name your folder properly:

1. **Right-click** in your desired directory.
2. Select **New > Folder** from the context menu.
3. Type the **folder name**. Use a name that talks about the folder's purpose or content.
4. Press **Enter** to save the folder with your chosen name.

Remember, a well-named folder facilitates easier access and organization of your files.

<figure><img src="/files/OsqsaiyaLZrmCGzh6zgv" alt=""><figcaption></figcaption></figure>

To start using **PuTTY**:

Enter your IP address and select **Authentication** > **Credentials**.

<figure><img src="/files/ILgJXZzzA2OFP4awLCbQ" alt=""><figcaption></figcaption></figure>

Open the browser select your key and click the open:-

<figure><img src="/files/3GCssxpTaZHqY3GY6xuI" alt=""><figcaption></figcaption></figure>

```markdown
Username: [Your Username]
```

<figure><img src="/files/emhSa2iMrgZfjqeKEvPl" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/cdhyeluIITA0ftqC2KU8" alt=""><figcaption></figcaption></figure>


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