Connection / Port Forwarding / Remote/X11

This category only appears if VanDyke Software's SecureCRT® 5.0 (or newer) is also installed.

The Port Forwarding/Remote/X11 category of the Session Options dialog allows you to configure secure connections through an SSH server to an application that resides on the SSH client -side, and to enable the forwarding of X11 packets.

Remotely forwarded connections

Name

Displays the unique identifying name for the connection
A data path or circuit between two computers over a phone line, network cable, or other media. .

Remote Address

Displays the port number on the remote machine that is used for this connection.

Local Host

Displays the hostname or IP address
Every site that is reachable on the Internet must have a valid IP, or Internet Protocol,address. An IP address should be entered as four numbers separated by period (.) characters (for example: 198.105.232.1). of the local machine and the local port number.

To create a new port-forwarded connection, click on the Add... button to open a blank Remote Port Forwarding Properties dialog. To modify an existing connection, select that connection and click on the Edit... button to open that connection's Remote Port Forwarding Properties dialog. To remove an existing connection, select that connection and click on the Delete button.

X11 forwarding

Forward X11 packets

Check this option to allow the forwarding of X Windows packets through the SSH session, which makes possible the encryption
The process of converting a data transmission into a secret format that cannot easily be read by unauthorized individuals. See also: decryption. of the data between the client and server.

Note: SecureCRT is not an X Server. The Forward X11 Packets option allows SecureCRT to accept X11 data from the remote machine and forwards it to the X server running on the local machine. The local X Server must be running before any X11 sessions can be displayed. If you are using Xhost authority access on the local X11 server, you will need to add the localhost or loopback address 127.0.0.1 to your server's Xhost list.

Enforce X11 authentication

Check this box to instruct SecureCRT to enforce X11 authentication.

Note: It may be helpful to disable this option when switching to a different user before launching an X application. If this option is enabled and the secondary user's .Xauthority file does not match the initial user's file, access to the X server will be denied.