Getting a command line on your server.
FROM MACOS OR LINUX
Open a terminal and connect using the ssh command with your username and the server's address. You will be prompted for the password or your key passphrase.
FROM WINDOWS
Windows includes an SSH client in recent versions, usable from PowerShell or Command Prompt.
Alternatively use PuTTY, which provides a graphical connection dialogue.
WHAT YOU NEED
The server's IP address or hostname A username, initially root The password, or a configured key The port, which is 22 by default
THE FIRST CONNECTION
You will be asked to confirm the server's fingerprint. Accept it once; subsequent connections verify against it, and a changed fingerprint warns you something has changed.
IF YOU CANNOT CONNECT
Check the address and port Check whether your own network blocks outbound SSH, which some corporate networks do Check whether the firewall on the server permits your address Check the server is actually running, via the control panel or console
Use a console session through the provider interface if SSH is unreachable.