7. Telnet_SSH

This chapter describes how to start and use the Telnet_SSH program supplied with WinaXe Plus.

Telnet_SSH is a communications and terminal emulation program for logging into remote machine and executing commands in a remote machine. It allows you to connect to and communicate with hosts that support:

• The Telnet protocol and run a Telnet service over an insecure channel
  
  
• The Secure Shell protocol, SSH, and run an SSH service to provide strong authentication and secure encrypted communications between two untrusted hosts over an insecure network. X11 connections and arbitrary TCP/IP ports can also be forwarded over the secure channel. TCP forwarding features make it possible to communicate across a firewall. The "Dynamic Port Forwarding" feature (an extension of the standard SSH1/SSH2 protocols for inter-task requests in multi-task environment) allows you to start other package's utilities (e.g., FTP) through established SSH1/SSH2 protocol connections without direct access to remote hosts.

To provide terminal emulation from your computer running MS Windows, the remote host must be configured with the TCP/IP program, the Telnet or SSH1/SSH2 service program (daemon), and a user account for your PC.

Telnet_SSH includes the following features:

• Compatibility with SSH protocol version 1.5 (a SSH1 client)
  
  
• Ciphers (for the SSH1 client): 3DES, Blowfish, DES, RC4
  
  
• Compatibility with SSH 2.0 protocol (a SSH2 client based on OpenSSH 3.4)
  
  
• Ciphers (for the SSH2 client): 3DES, Blowfish, CAST128, ARCFOUR, AES128, AES192, AES256-cbc
  
  
• Password authentication
  
  
• RSA authentication
  
  
• Compression support (with auto-selection of the compression mode supported by both sides)
  
  
• Connection forwarding, including full support for X-protocol connection forwarding
  
  
• "Dynamic Port Forwarding" that provides other tasks on the same PC with requested port forwarding.

Once you have established a connection, you can use Telnet_SSH to start X clients and perform other operations outside the X Window System environment.

While you are using Telnet_SSH, your PC emulates one of the following terminal types: XTERM, ANSI, AT386; DEC VT52, VT100, VT125, VT220 or VT240, using connection-based services of TCP. You can specify the terminal emulation settings for the current connection by making the appropriate settings on the Settings option.

By using the Keyboard Mapping option (i.e. keymap editor invoking), you can load, change (re-define keys and create a new keyboard layout), and save any keyboard definition file.

You can start more than one Telnet_SSH session, and use Telnet_SSH to open multiple Telnet_SSH windows on a single host or different hosts at the same time.