Troubleshooting with Apache logging
The Apache Web server (Apache) comes with a powerful logging framework. In the default configuration, Apache logs all errors to an error log and all access requests to an access log. The default level of logging is sufficient for analyzing traffic patterns and for getting basic information about errors, but it may be inadequate for troubleshooting purposes. Familiarity with all the logging features can help you troubleshoot the Web server or applications hosted on Apache.
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