Ports and Forwarding Parameters

AllowTCPForwarding specifies whether TCP forwarding is permitted.

GatewayPorts allows remote hosts to connect to ports forwarded for the client. Port specifies the port number that sshd listens on. ListenAddress designates a specific local address that sshd listens to. If there is no ListenAddress specification, sshd listens to all addresses by default.

X11Forwarding allows X11 forwarding. X11DisplayOffset specifies the first display number that is available for forwarding. This keyword prevents sshd from interfering with real X11 servers. XAuthLocation specifies the location of the xauth program.