Log files are records of activity. They can be very useful for troubleshooting as well as site usage and activity analysis.
- Apache Error Logs
These logs are useful when troubleshooting scripting errors, 500 errors, 403 errors, and missing pages.
- FTP
FTP logs show activities performed over FTP connections. These logs are mostly useful for finding out what users have done in the file system.
These logs track incoming and outgoing mail. This type of log is used for identifying spammers, whether or not mail was sent, and other email related questions.
- Access Logs
This is a list of your site's visitors.