User guide

Configuring the Avocent Session Viewer
To allow sharing among sessions initiated from the DSView client software, you must
preconfigure the Avocent Session Viewer as the serial viewer.
To configure the Avocent Session Viewer:
1. Click the Profile tab.
2. Click Applications in the side navigation bar.
3. Select the Avocent Session Viewer checkbox.
4. Click Save.
For more information about serial session applications, see Choosing the serial session
application on page 40.
SSH Passthrough Sessions
You may establish an SSH connection to a target device or an appliance console by specifying
the appropriate name in the SSH command. You may also establish an SSH session to a target
device with multiple connections, but the appliance name and port number must be entered in
place of the target device name.
NOTE: It is recommended that no more than 2048 concurrent data logging and SSH Passthrough sessions be
open.
Preemption
Your SSH session may be interrupted or disconnected based on the appliance preemption
levels. If the appliance supports DSView software preemption levels, then user preemption
rights will be determined based on the preemption levels set in the DSView software. For more
information, see Preemption Levels on page 45.
Logging in with a User SSH key
A user SSH key may be used instead of a password to authenticate the user before establishing
an SSH Passthrough session. See User SSH key on page 268 to configure the key.
Establishing an SSH Passthrough connection to a unit
To establish an SSH Passthrough connection to a target device or appliance console:
NOTE: If you are using the Linux or Unix SSH command, you will need to specify the port by entering -p and the
port number. The default port number is 4122. For more information or to change the port number, see Enabling
SSH Passthrough on page 222.
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