To access your hosting account via SSH, you should:
1. Follow the steps specified in this guide in order to enable SSH access for your account.
2. Open your SSH client, put your domain name or the IP address of the server into the Host Name field (you can also use server name here, you can check it using this tutorial), enter 21098 into the Port field (22 for a VPS/Dedicated server), choose SSH as your connection type and press the Open button:
3. You will receive the Putty Security Alert. Press OK:
4. When prompted, enter your cPanel username and password (when you enter the password, it is automatically hidden for the security purposes):