在 ubuntu 14.04 上无法通过 filezilla 访问远程文件

Unable to access remote files through filezilla on ubuntu 14.04

以前它是有效的。将我的操作系统升级到 Ubuntu 14.04 后,我无法通过 filezilla 访问我的网站文件。这是我得到的回复

Status: Resolving address of ftp.xxxx.com
Status: Connecting to xxx.xx.xx.xxx:21...
Status: Connection established, waiting for welcome message...
Response:   220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
Response:   220-You are user number 4 of 150 allowed.
Response:   220-Local time is now 05:31. Server port: 21.
Response:   220-This is a private system - No anonymous login
Response:   220-IPv6 connections are also welcome on this server.
Response:   220 You will be disconnected after 5 minutes of inactivity.
Command:    AUTH TLS
Error:  Connection timed out
Error:  Could not connect to server

此处附上截图供您参考。

谢谢大家。我将这个问题移交给超级用户,因为根据 Martin Prikryl 建议

,它在这里是题外话