*****Characteristic: ******
Direct proxy. (Tunneling through the SSH tunnel directly to the SSH server).
Direct SSL/TLS. (Tunneling through the SSH tunnel directly to the SSH server over an SSL/TLS connection).
HTTP proxy. (Tunneling through the SSH tunnel over HTTP Proxy) + SSL/TLS Proxy. (Tunneling through SSH Tunnel over SSL/TLS Proxy).
SSL/TLS Proxy > HTTP Proxy. (Tunneling through SSH Tunnel with TLS/SSL over HTTP Proxy).
many more... ".