Administration Guide : Troubleshooting the Xinet database : The at_log file

The at_log file
Xinet uses the at_log and at_log.old files to log system errors. The database can also use this log to report licensing problems. As with the SERVER.err log, only on rare occasions will database-related errors appear in this file. However, it is still useful to check here should abnormal behavior occur. The at_log file is presented under the Logging/Xinet System page in the GUI and can also be found in:
Unix: /var/adm/appletalk
Windows: \Program Files\Xinet\FullPress\Admin