配置文件目录：/etc/apache2/apache2.conf
| HTTP头 | 连接与请求 |
|---|---|
| HTTP_USER_AGENT HTTP_REFERER HTTP_COOKIE HTTP_FORWARDED HTTP_HOST HTTP_PROXY_CONNECTION HTTP_ACCEPT |
REMOTE_ADDR REMOTE_HOST REMOTE_PORT REMOTE_USER REMOTE_IDENT REQUEST_METHOD SCRIPT_FILENAME PATH_INFO QUERY_STRING AUTH_TYPE |
| 服务器自身 | 日期和时间 |
| DOCUMENT_ROOT SERVER_ADMIN SERVER_NAME SERVER_ADDR SERVER_PORT SERVER_PROTOCOL SERVER_SOFTWARE |
TIME_YEAR TIME_MON TIME_DAY TIME_HOUR TIME_MIN TIME_SEC TIME_WDAY TIME |
| 其他 |
|---|
| API_VERSION THE_REQUEST REQUEST_URI REQUEST_FILENAME IS_SUBREQ HTTPS |
引用资料：
Apache conf配置中的Order说明——海龙
Apache conf require allow deny order files directory location解释
原文：https://www.cnblogs.com/WhXcjm/p/14923979.html