响应: 220---------- Welcome to Pure-FTPd ----------
响应: 220-You are user number 21 of 200 allowed.
响应: 220-Local time is now 05:43. Server port: 21.
响应: 220-This is a private system - No anonymous login
响应: 220-IPv6 connections are also welcome on this server.
响应: 220 You will be disconnected after 5 minutes of inactivity.
命令: USER flyersky.xp3.biz
响应: 331 User flyersky.xp3.biz OK. Password required
命令: PASS *************
响应: 530 Login authentication failed
错误: 严重错误
错误: 无法连接到服务器