ubuntu – 无法上传文件FTP

我已将我的用户源添加到ftp组. public_html文件夹是……

drwxrwsr-x 2源ftp 4096 public_html

我不知道为什么我无法上传文件.我在权限方面做错了什么？

更新

VSFTPD日志读取：

- TIMESTAMP - [pid 2] CONNECT: Client "xx.xxx.xx.xx"
- TIMESTAMP - [pid 1] [user] OK LOGIN: Client "xx.xxx.xx.xx"

更新

SmartFTP返回错误：

[18:36:52] SIZE index.PHP
[18:36:52] 550 Could not get file size.

更新

智能FTP日志

[23:15:31] TYPE I
[23:15:31] 200 Switching to Binary mode.
[23:15:31] SIZE index.PHP
[23:15:31] 550 Could not get file size.
[23:16:02] SIZE index.PHP
[23:16:02] 550 Could not get file size.
[23:16:32] SIZE index.PHP
[23:16:32] 550 Could not get file size.
[23:17:02] SIZE index.PHP
[23:17:02] 550 Could not get file size.
[23:17:32] SIZE index.PHP
[23:17:32] 550 Could not get file size.
[23:18:02] SIZE index.PHP
[23:18:02] 550 Could not get file size.
[23:18:12] DELE index.PHP
[23:18:12] 550 Permission denied.
[23:18:12] DELE test.PHP
[23:18:12] 550 Permission denied.
[23:18:19] TYPE A
[23:18:20] 200 Switching to ASCII mode

FTP日志只显示登录成功消息,哪些用户以及他们来自哪个IP.

public_html的权限

drwxr-sr-x 2 source ftp 4096 2010-08-15 18:40 public_html

即使public_html是777我也无法写信给它.