Interoperability Now!
5-1
5
Security
In some applications, it may be desirable to restrict network access to the configuration or
connection management features of the NXU-2B. The NXU-2B can be programmed to one of
several different levels of security via the serial port by using the SECURITY command in the
Command Mode. Possible settings are listed below:
SECURITY 0
Full configuration allowed, default value
SECURITY 8
Telnet access disabled
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-2B.
5.1.1
Password Setting
The NXU-2B may be set to require a username and password for HTTP (web) access and for
firmware updating. The default setting requires no username or password. To program a
username and password, browse to the NXU-2B IP address and select the Security link. There
you may enter an Administrator username and password. Click Save Changes to save the new
username and password. At this point the username and password will be required for any NXU-
2B web access as well as for any firmware updates.
Figure 5-1 Web Access with Password Protection
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