How to disable an Apache Httpd module?

Solution Verified - Updated

Environment

  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat JBoss Core Services Apache HTTP Server
    • All Versions

Issue

  • How to disable an Apache Httpd module?
  • How to check if an Apache Httpd module is disabled?
  • How to prevent an Apache Httpd module from loading?

Resolution

  • In this example, the http2_module is used, but the same steps apply to other Apache modules.
  • Search for the LoadModule directive related to the target module in Apache configuration files.
# grep http2_module /etc/httpd/conf/httpd.conf /etc/httpd/conf.modules.d/*.conf
/etc/httpd/conf.modules.d/10-h2.conf:LoadModule http2_module modules/mod_http2.so
  • If no line is returned or the LoadModule line is already commented out (i.e., starts with #), the module is not loaded.
  • If the module is loaded, comment out the LoadModule line in the corresponding configuration file by adding a # at the beginning of the line.
  • The line should look like this after the change.
# grep -w mod_http2 /etc/httpd/conf.modules.d/10-h2.conf
#LoadModule http2_module modules/mod_http2.so
  • In addition to commenting/disabling the desired Httpd module, also comment/disable any directives belonging to the Httpd module in question (as they are no longer valid).
  • After modifying the configuration, reload the Apache service to apply the changes:
# systemctl reload httpd.service

Diagnostic Steps

  • Use the apachectl -M command to list the loaded modules and verify if the target module is active.
  • The module name corresponds to the first parameter after the LoadModule directive; in this example, it is http2_module.
  • If http2_module appears in the list, the module is enabled:
# httpd -M | grep -w http2_module
 http2_module (shared)
  • If no output is returned, the http2_module is disabled:
# httpd -M | grep -w http2_module
#
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