HP-UX AAA Server A.08.02 Administrator's Guide

# lsof -i :<authentication port>
The authentication port (default, 1812) and accounting port (default, 1813) must be in the
LISTEN state and used by the radius process.
NOTE: The lsof tool is an open source tool and is not available by default on HP-UX
operating systems.
3. If another process is using the authentication or accounting port, configure different ports in
the /etc/services file or from the Start Options in the Administration screen of Server
Manager
Troubleshooting an Unresponsive HP-UX AAA Server
To troubleshoot an unresponsive HP-UX AAA Server, first determine whether the HP-UX AAA Server
is receiving requests.
To determine whether the HP-UX AAA Server is receiving requests, perform the following steps:
1. View the HP-UX AAA Server logfile using the Server Logfile screen as described in “Using
Server Manager to Retrieve Logfile Information” (page 99). The server logfile messages are
displayed.
2. If the message was received, check the logfile for error messages and compare them to the
errors listed in the following sections:
• “Troubleshooting Common Configuration Problems” (page 356): Lists errors caused because
of incorrect configuration on the HP-UX AAA Server or the RADIUS client
• “Troubleshooting External Services” (page 359): Lists errors caused by unresponsive or
failed external services
3. If the HP-UX AAA Server received the request and remained unresponsive, but did not log an
error in the logfile, see “Troubleshooting External Services” (page 359).
If the HP-UX AAA Server did not receive the request, perform the following steps:
1. Verify that the DNS server is available by entering the nslookup command. For more
information on the nslookup command, see nslookup(1M).
2. Ensure that the RADIUS client is receiving requests from the supplicant and is configured to
send requests to the correct HP-UX AAA Server.
3. If proxy HP-UX AAA Servers are used, see “Identifying Proxy Server Failures” (page 362) to
check for proxy server failures.
Troubleshooting Common Configuration Problems
Table 100 lists the problems caused because of incorrect configuration on the RADIUS client or
the HP-UX AAA Server. Compare the error recorded in the logfile with the following and perform
the appropriate corrective actions.
Table 100 Common Configuration Problems
TroubleshootingProblem
Request from unknown client <client IP or hostname>
dropped. Configure client in /etc/opt/aaa/clients or Access
Devices screen in Server Manager.
Log MessageRequest dropped
The HP-UX AAA Server is not configured to receive requests from
the RADIUS client.
Cause
356 Troubleshooting Procedures