> ## Documentation Index
> Fetch the complete documentation index at: https://citodocs.prostack.host/llms.txt
> Use this file to discover all available pages before exploring further.
# SSH
> Manage SSH keys and access for your Cito sites
Individual Cito sites have their own SSH account and credentials. To SSH into an individual Cito site, you can add a public key to it.
**What about SFTP?**
SFTP uses the same port and authentication details as SSH. You can use your username, SSH key and the server's IP to log into a site using your SFTP client of choice.
You can assign a key to more than one site, or add a 'default' key, that is assigned to all new sites, using the steps below.
## Adding a new key
To add a new key, visit the SSH Keys link in the dashboard navigation bar. From here you can view, add and remove keys.
**What key types**
We support *rsa* and *ed25519* key types. Any other key type will be rejected.
Click 'Add new managed key' and a field will appear for you to paste in your **Public** key. We automatically populate the key name using the comment, but you can change this if desired.
**For security reasons we require all newly added keys to be confirmed via email.** When you add a new key we automatically email the following:
* The account owner
* Any contact added to the Prostack Portal. You can add a new contact by following [this guide](https://prostack.uk/portal/index.php?rp=/knowledgebase/102/How-do-I-add-a-new-contact-to-email-in-support-requests.html).
You will need to click the "Add Key" button to confirm.
## Assigning keys to sites
Once a managed key has been added you can assign it to individual sites for access. You can do this via the `Manage sites` option for each key, or from the Settings page for a site, by clicking 'SSH keys'.
This page will show you the keys assigned to a site. You can paste in a key to add it.
Once a key is added, it will appear in the list and will work for SSH access.
## Default keys
Default keys are SSH keys that are **automatically assigned to newly created sites**. This is controlled by the "Assign to new sites" toggle on each key.
When a key is set as default, a notification will appear below it to indicate it will be automatically assigned to new sites.
## Deleting keys
There are two ways to delete an SSH key from a site
* You can remove individual keys from sites using the "SSH keys" section under 'Site Settings'
* You can also remove a key from the "SSH Keys" page, which deletes it from all sites at once.
## What about the `admin` user?
The `admin` user has root privileges via the `sudo` command. For this reason, we do not allow it to be managed via the dashboard.
To amend `admin` keys you can modify `authorized_keys` via SSH or alternatively contact support for assistance.