NXU-2A Operations Manual
Interoperability Now!
4-5
4.6
Security
In some applications, it may be desirable to restrict network access to the configuration or
connection management features of the NXU-2A. The NXU-2A can be programmed to one of
several different levels of security by using the SECURITY command in the command mode.
Possible settings are listed below:
SECURITY 0
Full access via serial port, telnet, or web browser
SECURITY 8
Telnet access disabled
SECURITY 16
Password required for HTTP (web) access
SECURITY 32
Connection management via HTTP disabled
SECURITY 64
Configuration via HTTP disabled
SECURITY 128
All HTTP (web) access disabled
The above numbers may be added together to select various security options. For example,
setting the security level to 136 (128+8) disables both telnet and HTTP access. Setting security
to 96 (64+32) allows the connection status to be monitored by HTTP, but no configuration or
connection changes may be made via HTTP. Setting security to 24 (8+16) disables telnet
access and requires the user to enter a password for HTTP access.
Note: The default security setting from the factory is SECURITY 0, which
places no restrictions on network access to the NXU-2A.
4.6.1
Password Setting
The NXU-2A security level may be set to require a password for HTTP access. The password
may be programmed while in the command mode using the PASS command followed by the
desired password. Typing PASS with no password specified will report the current password.
Passwords are case-sensitive. You must type SAVE while in the command mode in order to
save the new password. The default factory setting for the NXU-2A password is “lightfoot”.
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