> For the complete documentation index, see [llms.txt](https://docs.sesterce.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sesterce.com/compute-instances/configure-your-compute-instance/ssh-keys-management.md).

# SSH Keys management

To launch an instance on Sesterce Cloud, you need to link a SSH Key to it. You can paste your public key directly from the launching path, or [**via the Settings page**](https://cloud.sesterce.com/settings).

{% hint style="danger" %}
Currently, it is **not possible** to add a SSH Key to an instance already live. Make sure to add all keys you need before launching your compute instance. [You can add several keys to a single instance](#how-to-add-multiple-ssh-key-in-a-compute-instance).
{% endhint %}

<figure><img src="/files/QOrX1J1VUyyODRO6cVXV" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
To generate your public SSH key from your laptop, open your terminal and type the following command: \
`ssh-keygen -t ed25519 -C "youremail@example.com"` . Then, type enter to select by-default saving place and use the following command to expose your public key: `cat ~/.ssh/id_ed25519.pub`
{% endhint %}

### How to mark a SSH Key as default?

To mark a SSH Key as default, click on the 3 dots icon an select "Make Default". This will automatically select the SSH Key when you'll create a new Compute instance.

<figure><img src="/files/BVkdFgja7GoUCQraU21b" alt=""><figcaption></figcaption></figure>

### How to add multiple SSH Key in a Compute instance?

You can merge several SSH Keys by pasting the keys one after the other in the text field as below (make sure to brake line between the keys):

<figure><img src="/files/FT3vuUAEd7Vedr0aOzrh" alt=""><figcaption></figcaption></figure>

Then, select the SSH Key created to launch your instance. Both users will be able to connect to the Compute instance.

<figure><img src="/files/FlhNax1uiyktnVuFPmqs" alt=""><figcaption></figcaption></figure>


---

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