我正在运行 Ubuntu 16.04。
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
我正在运行的 Apache HTTP 版本是 2.4.18。
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2016-07-14T12:32:26
以下是加载到 Web 服务器中的模块：
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)
mpm_prefork_module (shared)
authz_core_module (shared)
authz_user_module (shared)
authz_host_module (shared)
access_compat_module (shared)
auth_basic_module (shared)
authn_file_module (shared)
include_module (shared)
env_module (shared)
ext_filter_module (shared)
mime_magic_module (shared)
expires_module (shared)
headers_module (shared)
usertrack_module (shared)
setenvif_module (shared)
mime_module (shared)
vhost_alias_module (shared)
negotiation_module (shared)
dir_module (shared)
actions_module (shared)
alias_module (shared)
rewrite_module (shared)
info_module (shared)
status_module (shared)
我已经加载了提供authn_core下面将要描述的功能的模块：
a2enmod authn_core
Module authn_core already enabled
但是，返回了以下错误：
Invalid command 'AuthName', perhaps misspelled or defined by a module not included in the server configuration
AuthName对于与身份验证相关的指令，也会返回相同的错误。
我做错了什么？如何修复？在 Apache HTTP 2.4 中，这个身份验证功能是否已弃用或以不同的方式实现？