Apache request phases

Each phase of the request is processed by a module or a series of modules. These phases are:

1. URI to filename translation
   mod_userdir and mod_rewrite
2. Authentication
   mod_auth, mod_auth_anon, mod_auth_dbm, mod_auth_digest, mod_auth_ldap, mod_auth_ldap, mod_access
3. Fix ups
   For example replace aliases by the actual path
   mod_alias, mod_env
4. Determining the MIME type of the requested object
   mod_mime, mod_mime_magic
5. Send the actual data back to the client mod_asis
6. Log the request mod_log_agent (???), mod_log_config (???), mod_referer (???)