Apache (Web Server) - ErrorLog

by
Jeremy Canfield |
Updated: February 11 2024
| Apache (Web Server) articles
The ErrorLog directive in a web servers configuration file (e.g. httpd.conf) is used to define the location of the error log, something like this.
ErrorLog logs/error_log
With this configuration, the error log would be located at:
<web_server_root>/logs/error_log
As the name implies, the error_log will capture events classified as an error. Here is an example of an error in error_log.
[Fri Mar 20 21:21:28.084472 2020] [unique_id:alert] [pid 3538:tid 139812487051072] (EAI 2)Name or service not known: AH01564: unable to find IPv4 address of "server1"
AH00016: Configuration Failed
When using the apachectl command to start or restart the web server, the -e option followed by a log level (such as debug) can be used to append additional details to the error log.
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