This step will give you command line access to your new hosting account over the very secure SSH protocol. This will be essential for the deployment method we are going to use.
If you already have personal SSH key, you can import this into your Siteground account.
Importing personal key
Under the Devs section of Site Tools, Choose SSH Keys Manager and then click the greyed Import tab.
Give your imported key a name (for your info only).
Navigate to the folder containing your public key and import it.
Optionally, you can restrict access to your server via SSH using specific IPs.