Magento Open Source, 1.9.x

System Log

The System Log activate system logs, and determine the name of the system and exception log files.

To configure system logs:

1. On the Admin menu, select System > Configuration. Then in the panel on the left under Advanced, select Developer.
2. Click to expand the Log Settings section. Then, do the following:
a. Set Enabled to “Yes.”
b. In the System Log File Name field, enter the name you want to use for the system log file, in lowercase characters. The default file name is: system.log
c. In the Exceptions Log File Name field, enter the name you want to use for the exceptions log file, in lowercase characters. The default file name is: exceptions.log
3. When complete, click the Save Config button.