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How To Get Loaded Apache Modules?

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It is easy to get the list of loaded Apache modules if you have SSH access to the server. 

The steps include using the httpd command with the -M option. You can obtain the list of loaded Static and Shared Modules by using the -M option.

# httpd -M
root@web [~]# httpd -M
Loaded Modules:
 core_module (static)
 so_module (static)
 http_module (static)
 mpm_event_module (shared)
 systemd_module (shared)
 lsapi_module (shared)
 cgid_module (shared)
 access_compat_module (shared)
 actions_module (shared)
 alias_module (shared)
 auth_basic_module (shared)
 authn_core_module (shared)
 authn_dbm_module (shared)
 authn_file_module (shared)
 authn_socache_module (shared)
 authz_core_module (shared)
 authz_groupfile_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 dbd_module (shared)
 deflate_module (shared)
 dir_module (shared)
 expires_module (shared)
 filter_module (shared)
 headers_module (shared)
 include_module (shared)
 log_config_module (shared)
 logio_module (shared)
 mime_module (shared)
 negotiation_module (shared)
 proxy_module (shared)
 proxy_http_module (shared)
 proxy_wstunnel_module (shared)
 reqtimeout_module (shared)
 rewrite_module (shared)
 setenvif_module (shared)
 slotmem_shm_module (shared)
 socache_dbm_module (shared)
 socache_shmcb_module (shared)
 socache_redis_module (shared)
 status_module (shared)
 suexec_module (shared)
 unique_id_module (shared)
 unixd_module (shared)
 userdir_module (shared)
 bwlimited_module (shared)
 ssl_module (shared)
 http2_module (shared)
 security2_module (shared)
root@web [~]#

Add the grep command to check if a specific module is loaded. To check if the SSL module is present, use the following code:

# httpd -M | grep ssl
[root@web ~]# httpd -M | grep ssl
 ssl_module (static)
[root@web ~]#

You can use the apache_get_modules PHP function to get the loaded Apache modules if you do not have SSH access to the webserver.

The apache_get_modules method works only if the PHP is installed as an Apache Module (mod_php). Create a PHP file – e.g. apachemodules.php and add the following content and access it in your browser.

// prints Apache Modules - works only if the PHP is installed as an Apache Module
echo 'The Apache Modules found on the server are:</br>';



Related article: Nginx vs Apache – What’s the Difference and What to Use?

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