What's New in Apache Web Server 2.2?

httpd Options

In previous versions of Apache, there was no convenient way to determine what modules were loaded. The -l option to the httpd binary (httpd -l) listed all of the statically compiled modules, but omitted those that were loaded dynamically.

2.2 now has the -M argument, which lists all modules, both statically and dynamically loaded:

/www> sudo ./bin/httpd -M
Loaded Modules:
 core_module (static)
 mpm_prefork_module (static)
 http_module (static)
 so_module (static)
 authn_file_module (shared)
 authn_default_module (shared)
 authz_host_module (shared)
 authz_groupfile_module (shared)
 authz_user_module (shared)
 authz_owner_module (shared)
 authz_default_module (shared)
 auth_basic_module (shared)
 cache_module (shared)
 ...
 ...
 alias_module (shared)
 rewrite_module (shared)
 php5_module (shared)
 authn_alias_module (shared)
Syntax OK

This information is loaded out of the configuration file, rather than determined from the currently running httpd process. That means that if the configuration file has changed since the server was started, this may not reflect the configuration that your web server is actually running with.