FTP
SSH
SSH. * you can find the answer at - http://fliiby.com/file/593695/j06ty3w6yp.html
Remote Desktop Protocol (RDP)
Remote imaging protocol was created in 1993.
The Bradley Protocol
An SSH server is a software program which uses the secure shell protocol to accept connections from remote computers. SFTP/SCP file transfers and remote terminal connections are popular use cases for a SSH server. This article compares a selection of popular servers.
Point-to-point tunneling protocol (PPTP) and Layer Two tunneling protocol (l2tp) with internet security protocol (ip/sec)
RDP. Remote desktop protocol in Microsoft systems. Also known as terminal services on port 3389.
The Remote Frame Buffer protocol is an application level protocol used by VNC applications to transmit information about the remote machine's desktop in order to re-create it locally. RealVNC explains the protocol here: http://www.realvnc.com/docs/rfbproto.pdf .
Network Level Authentication (NLA)
RDP. Remote Desktop Protocol (RDP) is used by the Windows Remote Desktop and Remote Assistance utilities to connect to and control a remote computer. Remote Desktop and Remote Assistance listen at port 3389.
Remote Desktop Protocol