# SSH

### Prerequisites

Before continuing, make sure that the following steps have been completed:

* NoPorts has been installed on both machines.
* Your NoPorts atSigns are activated, and the associated keys are saved locally.

If you haven’t completed these steps, follow the appropriate installation guide on the [Installation Instructions](/installation.md) page, then return here once finished.

### Command Line

The command should look like:

```
sshnp -f @<client> -t @<device> -d <device name> -r @<relay> -i <your ssh key>
```

Example:

```
sshnp -f @alice_client -t @alice_device -d my_server -r @rv_am -i ~/.ssh/id_ed25519
```

#### Auto SSH key upload

If you don't have an ssh key uploaded on the remote machine, you can upload one by adding `-s` to the command:

```
sshnp -f @alice_client -t @alice_device -d my_server -r @rv_am -i ~/.ssh/id_ed25519 -s
```

{% hint style="warning" %}
Note: this feature can be disabled in sshnpd. If you get an error when using -s, it is likely that the administrator disabled this feature for security reasons.
{% endhint %}

### To learn more about SSHNP

{% content-ref url="/pages/qfKnYIHsZe1mUxKK2xJM" %}
[sshnp Usage](/usage/basic-usage-1.md)
{% endcontent-ref %}

### Desktop Application

When using the NoPorts desktop application, your connection profile should look something like this:

|                   |                   |
| ----------------- | ----------------- |
| **Profile Name**  | My SSH Connection |
| **Device atSign** | @alice\_device    |
| **Device Name**   | my\_server        |
| **Relay**         | @rv\_am           |
| **Local Port**    | 2222              |
| **Local Host**    | localhost         |
| **Remote Host**   |                   |
| **Remote Port**   | 22                |


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.noports.com/use-cases/ssh.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.