Overview

Logs keep information records of selected events occurred in or detected by Kerio Control. Each log is displayed in a window in the Logs section.

Optionally, records of each log may be recorded in files on the local disk and/or on the Syslog server. Individual logs can be rotated — after a certain time period or when a threshold of the file size is reached, log files are stored and new events are logged to a new (empty) file.

For Kerio Control admins, logs play a vital point to keep the system and network safe and secure.

Solution

Locally, the logs are saved in the files under the logs subdirectory where Kerio Control is installed. The file names have this pattern: log_name.log (e.g. debug.log). Each log includes a.idx file, i.e. an indexing file allowing faster access to the log when displayed in the administration interface. The logs directory can be accessed through the Kerio Control SSH console. The full path of the folder is /var/winroute/logs.

Kerio Control allows saving a selected log (or its part) in a file as plain text or in HTML.

The saved log can be analyzed by various tools, published on web servers, etc.

Changing Log Settings

1. In the administration interface, go to Logs.
2. Click any of the available log files to load its content.
   
3. Right-click any area in the log file and choose Log Settings.
   
   
4. In the Log Settings dialog box, select Enable logging to file. This option enables/disables saving to a file. If the log is not saved in a file on the disk, only records generated since the last login to Kerio Control will be shown. After logout (or closing of the window with the administration interface), the records will be lost.
5. Select a type of rotation:
   • Rotate regularly: Set intervals in which the log will be rotated regularly. The file will be stored and a new log file will be started in selected intervals. The weekly rotation takes effect on Sunday nights. Monthly rotation is performed at the end of the month (in the night when one month ends and another start).
   • Rotate when the file exceeds the size: Set a maximal size for each file. Whenever the threshold is reached, the file will be rotated. Maximal size is specified in megabytes (MB).
1. 1. Type the number of rotated log files to keep. Maximal count of log files that will be stored. Whenever the threshold is reached, the oldest file will be deleted.
   2. Click OK.
      
      
      Note: Kerio Control will trim out the older log entries to maintain the log size you have selected. If the result of these settings is 3 log files, for example, only the latest one will be displayed in the web browser UI.
6. (Optional) It's possible to set up External Logging.
   
   Make sure to enable Syslog logging, type the Syslog server name, select facility, change Application name if needed.
   

Testing

The log settings should be reflected as you specified and logs will be kept for any upcoming activity.