说明：这两天突然不能使用了，但是酸酸正常，重装无效。具体表现1.网站的nginx日志2019/02/09 14:57:38 [error] 3472#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.68.132.40, server: 域名, request:...