nginx 的 access_log 日志里,大量日志
182.61.142.237 - - [05/Sep/2018:18:26:33 +0800] GET /otn/leftTicket/queryO?leftTicketDTO.train_date=2018-09-30&leftTicketDTO.from_station=BXP&leftTicketDTO.to_station=LZZ&purpose_codes=ADULT HTTP/1.1 "444" 0
"https://kyfw.12306.cn/otn/leftTicket/init" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36" "-" "kyfw.12306.cn"
(返回444,是我封堵了
kyfw.12306.cn域名请求)