How to Check Which Apache Modules are Enabled or Loaded in Linux

Check Enabled Apache Modules

Therefore, in order to check which modules are enabled on your Apache web server, run the applicable command below for your distribution, where -t -D DUMP_MODULES is a Apache-argument to show all enabled/loaded modules:

---------------  On Debian based systems --------------- 
$ apache2ctl -t -D DUMP_MODULES   
OR 
$ apache2ctl -M

---------------  On RHEL based systems --------------- 
$ apachectl -t -D DUMP_MODULES   
OR 
$ httpd -M
$ apache2ctl -M

[root@tecmint httpd]# apachectl -M
Loaded Modules:
 core_module (static)
 mpm_prefork_module (static)
 http_module (static)
 so_module (static)
 auth_basic_module (shared)
 auth_digest_module (shared)
 authn_file_module (shared)
 authn_alias_module (shared)
 authn_anon_module (shared)
 authn_dbm_module (shared)
 authn_default_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 authz_owner_module (shared)
 authz_groupfile_module (shared)
 authz_dbm_module (shared)
 authz_default_module (shared)
 ldap_module (shared)
 authnz_ldap_module (shared)
 include_module (shared)
....