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

$ apache2ctl -M

Loaded Modules:

 core_module (static)

 so_module (static)

 watchdog_module (static)

 http_module (static)

 log_config_module (static)

 logio_module (static)

 version_module (static)

 unixd_module (static)

 access_compat_module (shared)

 alias_module (shared)

 auth_basic_module (shared)

 authn_core_module (shared)

 authn_file_module (shared)

 authz_core_module (shared)

 authz_host_module (shared)

 authz_user_module (shared)

 autoindex_module (shared)

 deflate_module (shared)

 dir_module (shared)

 env_module (shared)

 filter_module (shared)

 headers_module (shared)

 mime_module (shared)

 mpm_prefork_module (shared)

 negotiation_module (shared)

 php7_module (shared)

 reqtimeout_module (shared)

 rewrite_module (shared)

 setenvif_module (shared)

 socache_shmcb_module (shared)

 ssl_module (shared)

 status_module (shared)

 userdir_module (shared)

Ref

• https://ubiq.co/tech-blog/check-apache-modules-enabled/
• https://www.tecmint.com/check-apache-modules-enabled/