You can use PuTTY to establish an SSH connection with public key authentication as follows:
You have already created a project in the Cloud Panel.
You have downloaded PuTTY.
You have already created a public key.
You are in the Managed Cloud Hosting > Projects section.
Select a project.
On the Website tab, click next to Status:.
Enter the desired password and then enter it again in the next box.
Copy the public key.
Paste the public key in the Public key box.
Enter your server's IP address in the Host name (or IP address) field.
Go to Category > Connection and click Data.
Enter your user name in the Auto-login username box.
Go to Category > Connection > SSH and click Auth.
Go to Private key file for authentication: and click Browse...
Select the private key.
Click Open to set up the SSH connection.
Please note: A warning message appears the first time you log in. Because the SSH server was previously unknown, PuTTY does not have the key stored.
To allow the connection and save the key for future sessions, click Yes.
The SSH connection will be established.