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Chapter 4: Serial Port, Device and User Configuration
Unauthenticated Telnet
Selecting
Unauthenticated Telnet
enables Telnet access to the serial port without requiring the user
to provide credentials. When a user accesses the Console Server to Telnet to a serial port they are
normally given a login prompt. However, with unauthenticated Telnet, they connect directly through
to port with any Console Server login at all. This mode is mainly used when you have an external
system (such as conserver) managing user authentication and access privileges at the serial device
level.
For Unauthenticated Telnet, the default port address is IP Address _ Port (6000 + serial port #)
i.e. 6001 – 6048.
IP Alias
Enable access to the serial port using a specific IP address, specified in CIDR format. Each serial
port can have one or more IP aliases configured on a per-interface basis. These IP addresses can
only be used to access the specific serial port, accessible using the standard protocol TCP port
numbers of the console server services. For example, SSH on serial port 3 would be accessible on
port 22 of a serial port IP alias (whereas on the console server’s primary address it is available on
port 2003).
This feature can also be configured via the multiple port edit page. In this case the IP addresses
are applied sequentially, with the first selected port getting the IP entered and subsequent ones
getting incremented, with numbers being skipped for any unselected ports. For example if ports
2, 3 and 5 are selected and the IP alias 10.0.0.1/24 is entered for the Network Interface, the
following addresses will be assigned:
Port 2: 10.0.0.1/24
Port 3: 10.0.0.2/24
Port 5: 10.0.0.4/24
Web Terminal
Selecting Web Terminal enables web browser access to the serial port via
Manage: Devices:
Serial
using the Management Console's built in AJAX terminal. Web Terminal connects as the
currently authenticated Management Console user and does not re-authenticate. See section
13.3 for more details.
Accumulation Period
By default once a connection has been established for a particular serial port (such as a RFC2217
redirection or Telnet connection to a remote computer) then any incoming characters on that
port are forwarded over the network on a character by character basis. The accumulation period
changes this by specifying a period of time that incoming characters will be collected before then
being sent as a packet over the network
Escape Character
This enables you to change the character used for sending escape characters. The default is ~.
Power Menu
This setting enables the shell power command so a user can control the power connection to
a Managed Device from command line when they are telnet or SSH connected to the device.
To operate the Managed Device must be set up with both its Serial port connection and Power
connection configured. The command to bring up the power menu is ~p