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Server Commands 25
Server Commands
password-limit
The number of attempts a user is allowed to enter a password for a serial port
connection from the network, before the connection is terminated and the user has to
attempt to login again. For users logging into the serial port, if this limit is exceeded,
the serial port is disabled for 5 minutes. A user with Admin level rights can restart the
serial port, bypassing the timeout, by issuing a kill on the disabled serial port. The
default value is
3.
prompt-with-name
Displays the Server Name field value instead of default product name. When enabled,
the
Server Name is displayed in the IOLAN login prompt, CLI prompt, WebManager
login screen, and the heading of the Menu. The default value is Off.
ip-filter
A security feature that when enabled, the IOLAN will only accept data from hosts
configured in the IOLAN’s
Host Table with an IP address (hosts configured with a
Fully Qualified Domain Name, FQDN, will not be able to access the IOLAN when this
option is enabled). The default value is
Off.
single-telnet
Sets all reverse connections (raw, SSH, and telnet) to a one connection at a time mode.
In this mode of operation, the IOLAN will only allow for a single TCP connection at a
time to exist for each serial port configured for a reverse connection type. Subsequent
connection attempts will be refused until all of the following conditions are met:
z No active connection to serial port exists and at least 1 second has passed since the
last connection was terminated.
z All data from the previous connection on the serial port has been transmitted.
The IOLAN has logic to automatically detect when a reverse connection is no longer
active. When this happens, the connection is reset and the server can go back to a
listening for an incoming connection state.
Applications using Single Telnet need to be aware that there can be some considerable
delay between a network disconnection and the port being available for the next
connection attempt; this is to allow any data sent on prior connections to be transmitted
out of the serial port. Application network retry logic needs to accommodate this
feature. The default value is
Off.
active-standby
(SCS only) Enables/disables the feature of automatically assigning the Ethernet 1 IP
address to Ethernet 2 if Ethernet 1 should fail to communicate to the network.
miimon
(SCS only) The interval in which the active interface is checked to see if it is still
communicating. The default is 100 ms.
updelay
(SCS only) The time that the IOLAN will wait to make the secondary interface
(Ethernet 2) active after it has been detected as up.
power-management-menu-string
Users accessing the IOLAN through reverse sessions can enter the string to bring up a
power bar management menu. This string can be up to 8 characters. Control characters
can be specified by putting their decimal value within angled brackets. The default
value is
<016> or Ctrl-p on the keyboard.