使用Filezilla Server配置FTP服务器
https://blog.csdn.net/chuyouyinghe/article/details/78998527
FileZilla Server日志
Connecting to server...
Connected, waiting for authentication
Logged on
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> Connected, sending welcome message...
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> 220-FileZilla Server version 0.9.43 beta
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> 220-written by Tim Kosse (tim.kosse@filezilla-project.org)
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> 220 Please visit http://sourceforge.net/projects/filezilla/
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> USER root
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> 331 Password required for root
(000014)2018/9/14 11:42:44 - (not logged in) (10.4.26.21)> PASS ******
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 230 Logged on
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> CWD /
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 250 CWD successful. "/" is current directory.
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> SIZE /FtpServer/event_common_20180913.txt
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 213 2686622
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> TYPE I
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 200 Type set to I
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> PORT 10,4,26,21,199,235
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 200 Port command successful
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> APPE /FtpServer/event_common_20180913.txt
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 150 Opening data channel for file transfer, restarting at offset 2686622
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 226 Successfully transferred ""
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> QUIT
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> 221 Goodbye
(000014)2018/9/14 11:42:44 - root (10.4.26.21)> disconnected.
用户目录。权限。
读权限。读文件。
写权限。才能创建文件，但是不能覆盖。
删除权限。追加权限。才能覆盖文件。
目录如果不存在的话也会创建文件失败。