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Select the
System: Services
option, then select/deselect for the service to be enabled/disabled.
The following access protocol options are available:
HTTPS
This ensures secure browser access to all the Management Console menus. It also
allows appropriately configured
Users
secure browser access to selected
Management Console
Manage
menus. If you enable HTTPS, the
Administrator
will be
able to use a secure browser connection to the
Console server
’s Management
Console. For information on certificate and user client software configuration, refer
to
Chapter 9—Authentication
. By default, HTTPS is enabled, and we recommend that
that you only use HTTPS access if the
console server
will be managed over any public
network (for example, the Internet).
HTTP
By default HTTP is disabled. We recommend that the HTTP service remain disabled if
the
console server
will be remotely accessed over the Internet.
Telnet
This gives the
Administrator
Telnet access to the system command line shell (Linux
commands). This may be suitable for a local direct connection over a management
LAN. By default, Telnet is disabled. We recommend that this service remain disabled
if you will remotely administer the
console server
.
SSH
This service provides secure SSH access to the Linux command line shell. We
recommend that you choose SSH as the protocol where the
Administrator
connects
to the
console server
over the Internet or any other public network. This will provide
authenticated communications between the SSH client program on the remote
PC/workstation and the SSH sever in the
console server
. By default SSH is enabled.
For more information on SSH configuration refer
Chapter 9—Authentication
.
You can configure related service options at this stage:
SNMP
This will enable
netsnmp
in the
console server
, which will keep a remote log of all
posted information. SNMP is disabled by default. This SNMP service is only available
in rackmount models. To modify the default SNMP settings, the
Administrator
must
make the edits at the command line as described in
Chapter 15—Advanced
Configuration.
TFTP
This service will set up the default
tftp
server on the USB flash card (and is relevant
to LES1208A, LES1216A and LES1248A
console server
s only). This server can be used
to store config files, and maintain access and transaction logs, etc.
Ping
This allows the
console server
to respond to incoming ICMP echo requests. Ping is
enabled by default. For security reasons, you should disable this service after initial
configuration.
And there are some serial port access parameters that you can configure on this menu:
Base
The
console server
uses specific default ranges for the TCP/IP ports for the various
access services that
Users
and
Administrators
can use to access devices attached to
serial ports (as covered in
Chapter 4—Configuring Serial Ports
). The
Administrator
can also set alternate ranges for these services, and these secondary ports will then
be used in addition to the defaults.
The default TCP/IP
base
port address for
telnet
access is 2000, and the range for
telnet
is IP Address: Port (2000 + serial port #)
i.e.
2001 – 2048. If the
Administrator
