WebConsole - System Options
52 NI Series WebConsole & Programming Guide
Server Port Settings

The following table describes each of the Port Settings presented on this page:

Server Port Settings

Feature Description
Telne t: The port value used for Telnet communication to the target Master. Enabling this feature allows
future communication with the Master via a separate Telnet application (such as HyperTermi-
nal).
• The default port value is 23.
• Refer to the NetLinx Security with a Terminal Connection section for more information on the
related procedures.
ICSP: The port value used for ICSP data communication among the different AMX software and hard-
ware products. This type of communication is used by the various AMX product for communica-
tion amongst themselves. Some examples would be: NetLinx Studio communicating with a
Master (for firmware or file information updates) and TPDesign4 communicating with a touch
panel (for panel page and firmware updates).
• The default port value is 1319.
Note: To further ensure a secure connection within this type of communication, a user can
enable the Require Encryption option which requires additional processor cycles. Enabling of
the encryption feature is determined by the user.
HTTP: The port value used for unsecure HTTP Internet communication between the web browser’s UI
and the target Master. By disabling this port, the administrator (or other authorized user) can
require that any consecutive sessions between the UI and the target Master are done over a
more secure HTTPS connection.
By default, the Master does not have security enabled and must be communicated with using
http:// in the Address field.
• The default port value is 80.
Note: One method of adding security to HTTP communication is to change the Port value. If the
port value is changed, any consecutive session to the target Master has to add the port value at
the end of the address (within the Address field). An example is if the port were changed to 99,
the new address information would be: http://192.192.192.192:99.
HTTPS/SSL: The port value used by web browser to securely communicate between the web server UI and
the target Master. This port is also used to simultaneously encrypt this data using the SSL certif-
icate information on the Master as a key.
This port is used not only used to communicate securely between the browser (using the web
server UI) and the Master using HTTPS but also provide a port for use by the SSL encryption
key (embedded into the certificate). Whereas SSL creates a secure connection between a client
and a server, over which any amount of data can be sent securely, HTTPS is designed to trans-
mit individual messages securely. Therefore both HTTPS and SSL can be seen as complemen-
tary and are configured to communicate over the same port on the Master. These two methods
of security and encryption are occurring simultaneously over this port as data is being trans-
ferred.
• The default port value is 443.
Note: Another method of adding security to HTTPS communication would be to change the port
value. If the port value is changed, any consecutive session to the target Master has to add the
port value at the end of the address (within the Address field). An example is if the port were
changed to 99, the new address information would be: http://192.192.192.192:99.
SSH: • The port value used for secure Telnet communication. A separate secure SSH Client would
handle communication over this port. When using a secure SSH login, the entire login session
(including the transmission of passwords) is encrypted; therefore it is secure method of
preventing an external user from collecting passwords.
• SSH version 2 is supported.
• The default port value is 22.
Note: If this port’s value is changed, make sure to use it within the Address field of the SSH Cli-
ent application.