HP-UX AAA Server A.07.01 Administrator's Guide

Table 28-4 External Service Failure Problems (continued)
TroubleshootingProblem
Authentication: 205/0 '<user name>' via <hostname/IP
address> from <hostname/IP address> port <port
Log MessageUnable to connect
to the DHCP server
no> Outbound (8 retries) - FAILED DHCP server not
responding -- total 24, holding 0
The DHCP server is busy or unavailable.Cause
Verify if the DHCP server is running and can service IP
address requests.
Solution
Or,
Specify an alternate DHCP server.
Identifying Unrecorded External Datastore Failures
If your AAA environment uses one or more external datastores, a failure in a datastore
can cause the HP-UX AAA Server to be unresponsive, but not record an error to the
logfile.
To determine if an unrecorded external datastore failure is causing the problem,
complete the following steps:
1. Examine the Access-Request for the User-Name attribute value to determine the
realm.
2. Select the realm from the Local Realms screen of the Server Manager,
3. Check the User Profile Storage selection in the Modify Realms screen.This
determines the datastore used for the user profile. If an external datastore (for
example, SQL Access) is selected, check the datastore access parameters specified
for the datastore. If Database via SQL Access is selected, the database access
parameters are specified in the DBID structure of the /etc/opt/aaa/
sqlaccess.config file.
4. Ensure that the external datastore is responsive.
Identifying Proxy Server Failures
If your AAA environment uses proxy HP-UX AAA Servers, a failure in one or more
proxies can cause the HP-UX AAA Server to be unresponsive, but not record an error
to the logfile.
If proxy HP-UX AAA Servers are used, verify the proxy configuration for each proxy
starting with the proxy server closest to the RADIUS client/supplicant. For each proxy
server, use the Add/Modify Proxy screen of the Server Manager and verify the following.
• Shared Secret: The shared secret on the proxy server must match that of the remote
server to which the requests are forwarded.
• Realms to Forward: Ensure that the appropriate realms are selected.
Troubleshooting the HP-UX AAA Server 351