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Check the Apache configuration for syntax errors

harmless rootApachedebian, ubuntu
root@server
apache2ctl configtest

Reads all configuration files and reports Syntax OK or the faulty file along with the line number. Run it after every change to virtual hosts, .conf files or modules, before reloading Apache. The running web server is left untouched.

Note: A warning like Could not reliably determine the server's fully qualified domain name is not an error, it only means ServerName is missing from the global configuration.

Also searched as

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  • find apache2 configuration error

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List all configuration files Apache loads

#apache2ctl -t -D DUMP_INCLUDES
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List loaded Apache modules

#apache2ctl -M
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Show all Apache virtual hosts and their config files

#apache2ctl -S
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Check the nginx configuration for syntax errors

#nginx -t
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Restart Apache gracefully without dropping connections

#apache2ctl graceful
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Show the Apache version and active MPM

$apache2ctl -V
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