For basic troubleshooting, enable the severe log level for Identity Server and Access Gateway ESP and the crit log level for Access Gateway.
Access Gateway:
Click Devices > Access Gateways > Edit > Advanced Options.
Add the following:
LogLevel crit
Identity Server:
Click Devices > Identity Servers > Edit > Auditing and Logging.
Select File Logging and Echo to Console.
Under Component File Logger Levels > Application, select severe.
If you want advanced troubleshooting, enable the debug level. See Using debug Logs.
These log snippets provide the following information:
User DN
Correlation ID (session ID)
Currently fetched device information
Device Fingerprint (Device fingerprint stored in the session)
Result
Failure cause
Offending Mandatory Attribute (information about the parameter that did not match)
Identity Server
<amLogEntry> 2016-09-23T09:59:06Z SEVERE NIDS Application: *************Device Fingerprint Evaluation Trace************* Evaluating device fingerprint for user: cn=admin,o=novell Correlation ID: d2ee43e3fbb2ca0487c9088fbc14c64cae552ecf6233412aa73fe6758a329598 Currently fetched device info: {"headerSet":{"user-agent":"Microsoft Office Protocol Discovery"}} Total number of known devices to compare against: 1 Overall Result: Mismatch *************Summary of comparison against known device************* Evaluation Result: Mismatch Device Fingerprint: {"user-agent":"Mozilla/5.0 (X11; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0"} Failure Cause: At least one individual attribute failed match/is unavailable. Offending individual attribute: user-agent ***************End of comparison against known device*************** ***************************Trace End************************* </amLogEntry> <amLogEntry> 2016-09-23T09:59:06Z SEVERE NIDS Application: The session might have been hijacked. Logging out </amLogEntry>
Access Gateway
The following is a snippet of the log when the crit level is enabled. This log records the session assurance failure message:
Sep 28 20:27:07 namiso httpd[9797]: [crit] AM#104600404 AMDEVICEID#ag-8B62635F46CD2776: AMAUTHID#YfdEmqCT2ZutwybD1eYSpfph8g5a5aMl6MGryq1hIqc=: AMEVENTID#23: logging out user with DN=cn=admin,o=novell and session ID =965dce7b7f4963730fed0bebf93d4ef70e062fb90e590569729f2b9b9dfd because of session assurance mismatch