AUTH_TYPE               HTTP_KEEP_ALIVE         SCRIPT_FILENAME
DOCUMENT_ROOT           HTTP_USER_AGENT         SCRIPT_NAME
GATEWAY_INTERFACE       PATH                    SERVER_ADDR
HTTP_ACCEPT             PERL5LIB                SERVER_ADMIN
HTTP_ACCEPT_CHARSET     QUERY_STRING            SERVER_NAME
HTTP_ACCEPT_ENCODING    REMOTE_ADDR             SERVER_PORT
HTTP_ACCEPT_LANGUAGE    REMOTE_PORT             SERVER_PROTOCOL
HTTP_CONNECTION         REMOTE_USER             SERVER_SIGNATURE
HTTP_COOKIE             REQUEST_METHOD          SERVER_SOFTWARE
HTTP_HOST               REQUEST_URI