User guide
73User Guide InfraStruxure 150kVA Power Distribution Unit
APC supports the authentication and authorization functions of RADIUS (Remote Authentication
Dial-In User Service).
• When a user accesses the PDU that has RADIUS enabled, an authentication request is sent to the
RADIUS server to determine the user’s permission level.
• RADIUS user names used with the PDU are limited to 32 characters.
Select one of the following:
• Local Authentication Only: RADIUS is disabled. Local authentication is enabled.
• RADIUS, then Local Authentication: RADIUS and local authentication are enabled.
Authentication is requested from the RADIUS server first. If the RADIUS server fails to respond,
local authentication is used
.
• RADIUS Only: RADIUS is enabled. Local authentication is disabled.
Note: If RADIUS Only is selected, and the RADIUS server is unavailable, improperly
identified, or improperly configured, you must use a serial connection to the command line
interface and change the Access setting to Local Authentication Only or RADIUS, then Local
Authentication to regain access.
RADIUS.
Path: Administration > Security > Remote Users > RADIUS
Use this option to do the following:
• List the RADIUS servers (maximum of two) available to the PDU and the time-out period for
each.
• Click Add Server, and configure the parameters for authentication by a new RADIUS server:
• Click a listed RADIUS server to display and modify its parameters.
RADIUS Setting Definition
RADIUS Server The server name or IP address of the RADIUS server.
Note: RADIUS servers use port 1812 by default to authenticate users. To use
a different port, add a colon followed by the new port number to the end of
the RADIUS server name or IP address.
Secret The shared secret between the RADIUS server and the PDU.
Reply Timeout The time in seconds that the PDU waits for a response from the RADIUS
server.
Test Settings Enter the Administrator user name and password to test the RADIUS server
path that you have configured.
Skip Test and Apply Do not test the RADIUS server path.
Switch Server Priority Change which RADIUS server will authenticate users if two configured
servers are listed and RADIUS, then Local Authentication or RADIUS
Only is the enabled authentication method.