User guide

To prevent connections through Modem Dial-Up, uncheck the Enable Modem Dial-Up
Connections checkbox. If the main network connection fails, the SSH Passthrough
connection will fail without attempting an alternate connection.
NOTE: Modem dial-up connections are only available on supported ACS console servers.
6. Click Save.
7. If you have not already done so, click the SSH Server page link and enable the SSH server.
See Enabling SSH Passthrough on page 222 for more information.
Enabling or disabling SSH Passthrough will generate a DSView software system event.
SSH port sharing
SSH Passthrough sessions and/or Avocent Session Viewer sessions can be shared to allow other
users to view the session data. You can also enable hub/spoke forwarding to allow sessions
from multiple DSView servers to be shared simultaneously. The first user to open an SSH
Passthrough or Avocent Session Viewer session has read/write access; all subsequent users who
share the session have read-only access. Users can enter a command to obtain read/write access,
but only one user at a time can possess read/write access.
To configure SSH Passthrough port sharing:
1. Click the System tab.
2. Click DSView Server in the top navigation bar.
3. Click SSH Passthrough in the side navigation bar. The SSH Passthrough Properties
window opens.
4. To enable shared SSH Passthrough sessions, select the Enable Port Sharing checkbox.
5. To allow simultaneous shared SSH Passthrough sessions from multiple DSView servers,
select the Enable Hub/Spoke Forwarding checkbox.
If hub/spoke forwarding is enabled, shared SSH Passthrough sessions are centralized to
the DSView server that owns the appliance to which the session is opened.
NOTE: The appliance is owned by the DSView server to which it was first added. To determine which DSView
server owns an appliance, go the appliance Unit Overview Page and click Properties - Network. The DSView
Server menu displays the name of the server that owns the appliance. See Unit Properties on page 158 for more
information.
6. To allow sharing among SSH Passthrough sessions and Avocent Session Viewer sessions,
select the Enable DSView Client Serial Sessions checkbox.
7. Click Save.
Chapter 14: SSH Passthrough Sessions 223