Monitoring FileMaker Server : Viewing log file entries : Access log
 
Access log
Note  The following information is for server administrators and group administrators.
The Database Server logs the accesses to databases in a separate log file called the Access.log. Typical events that are logged include:
clients that connect to and disconnect from the Database Server
databases that clients access with a unique account and with the built-in Guest account
clients that connected denied access due to connection limits, including FileMaker Pro, FileMaker Go, and FileMaker WebDirect clients
Accesses are logged in the tab-delimited Access.log file that is created in the
FileMaker Server/Data/Logs/ folder.
Use the Log Viewer pane to view information in the Access.log file. See Viewing log file entries.
You can also view the Access.log file in any application that can read tab-delimited data (FileMaker Pro or a text editor) or the Console application (OS X).
Notes
When the Access.log file reaches Log Size specified on the Database Server > Logging tab, it is renamed Access-old.log and a new Access.log file is created.
To configure access logging, see Logging and statistics settings.
The Access.log file contains information-level messages only. All warning and error-level messages are logged in the Event.log.
Related topics 
Monitoring FileMaker Server