windows使用mobaxterm ftp 往linux arm开发板上传文件失败 , 下载文件没问题 , 是不是哪里权限出了问题

windows使用mobaxterm ftp 往linux arm开发板上传文件失败 , 下载文件没问题 , 是不是哪里权限出了问题 , 如下图 :

报错信息 :

CWD .
<<< 250 Operation successful
Starting FTP transfer
Uploading file "E:\XX.Net Core跨平台发布Linux\基于Avalonia框架运行\AvaloniaAppForLinux\AvaloniaAppForLinux\Assets\DJJ8.ico" to "/var/DJJ8.ico"
PWD
<<< 257 "/var"
CWD /var
<<< 250 Operation successful
CWD /var
<<< 250 Operation successful
TYPE I
<<< 200 Operation successful
PASV
<<< 227 PASV ok (192,168,2,243,211,178)
STOR /var/DJJ8.ico
<<< 500 Unknown command
CWD .
<<< 250 Operation successful
CWD /var/
<<< 250 Operation successful
PWD
<<< 257 "/var"
Opening directory /var...
PWD
<<< 257 "/var"
CWD /var
<<< 250 Operation successful
TYPE A
<<< 200 Operation successful
PASV
<<< 227 PASV ok (192,168,2,243,235,36)
LIST
<<< 150 Directory listing
<<< 226 Operation successful
CWD /var
<<< 250 Operation successful
Directory /var opened. Showing file list...
Error EElFTPSUnacceptedReplyError: Unaccepted server reply code 500

FTP服务器不支持STOR命令，换个命令上传试试，比如PUT命令，看FTP软件里是不是有地方可以设置