The Raw protocol type is used when you don't want SSH to make any changes to data you send/receive from the remote server.

The Telnet protocol is used when the remote server is running the Telnet service. This means that wodSSH expects special characters to be received by the server and the server to behave accordingly. These characters will not be visible to your program.

SSH1 and SSH2 are encrypted protocols. All the information passing between your computer and the remote server is secured.

SSHAuto will make wodSSH choose automatically which SSH protocol should be used with the remote server. wodSSH will prefer SSH2 where available.