Ports
Port Restrictions
8-9
8.7.2 Preferred/Dedicated Hosts
A port can be assigned a preferred or dedicated SSH, Telnet, or Rlogin host using the
Set/Define Ports
Preferred
and
Define Ports Dedicated
commands. By entering a sequence of key letters (environment
strings) after the TCP parameter, you can specify the type of connection (e.g. SSH, Telnet, etc.). If the TCP
parameter is entered without an environment string, the connection will default to Telnet.
Figure 8-18:
Specifying a Preferred/Dedicated Host
For SSH connections, the port name will be used as the username for the remote host.
See
Environment Strings
on page A-1 for more information on available strings.
8.7.3 Saving Autostart Characters
When a port is in dedicated mode and is configured to use an Autostart character (see
Starting Automatically
on page 8-2 for more information on Autostart), you can forward the autostart characters to the host as the
first bytes of data. Enable this option with the
Set/Define Ports Autostart Save
command
Figure 8-19:
Sending Autostart Characters to a Dedicated Host
If you have a two-character autostart trigger, you can instruct the SCS to pass along both, one, or none of
the characters as part of this command.
The full syntax of
Set/Define Ports Autostart
is discussed on page 12-60.
8.8 Port Restrictions
Ports may be restricted in a number of ways. These methods include locking a port, username/password
protection, restriction of connection type, automatic logouts, control of session interruption, restriction of
commands, and receipt of broadcast messages.
8.8.1 Locking a Port
The
Lock
command may be used to secure a port without disconnecting sessions. When you enter Lock,
you will be prompted to enter a password. The port will then be locked until that same password is used to
unlock it. Figure 8-20 displays an example.
Figure 8-20:
Locking and Unlocking a Port
Local>> DEFINE PORT 2 PREFERRED TCP 192.75.1.0:T
Local>> DEFINE PORT 3 DEDICATED RLOGIN 192.0.1.221:R
Local>> DEFINE PORT 4 DEDICATED SSH 192.0.4.52:S
Local>> DEFINE PORT 4 AUTOSTART SAVE 1
Local> LOCK
Password> donut (not echoed)
Verification> donut (not echoed)
Unlock password> donut (not echoed)
Local>
Summary of Contents for SCS
Page 14: ...xii ...
Page 171: ...Modem Sharing Examples 10 6 ...
Page 314: ...Command Reference Service Commands 12 110 ...
Page 403: ...Show 802 11 Errors Rightmost Number B 5 00000002 Internal error 00000001 Internal error ...
Page 424: ...Index 13 ...