FTP“550访问被拒绝”错误
我有两个连接到FTP（配置为IIS的一部分）的客户端，两个客户端都可以成功连接到FTP，但是当客户端A尝试上传一个“550访问被拒绝，错误：严重文件传输错误”文件，而客户端B可以成功上传文件。 他们都在Windows环境中使用Filezilla。
客户端A输出
Status: Resolving address of 000.000.000.00
Status: Connecting to 000.000.000.00:21...
Status: Connection established, waiting for welcome message...
Response: 220 Microsoft FTP Service
Command: USER wgtransfer
Response: 331 Password required for wgtransfer.
Command: PASS *********
Response: 230 User wgtransfer logged in.
Status: Connected
Status: Starting upload of C:upload.zip
Command: CWD /
Response: 250 CWD command successful.
Command: TYPE I
Response: 200 Type set to I.
Command: PASV
Response: 227 Entering Passive Mode (000,000,000,00,22,96).
Command: STOR upload.zip
Response: 550 Access is denied.
Error: Critical file transfer error
客户端B输出
Status: Resolving address of 000.000.000.00
Status: Connecting to 000.000.000.00:21...
Status: Connection established, waiting for welcome message...
Response: 220 Microsoft FTP Service
Command: USER wgtransfer
Response: 331 Password required for wgtransfer.
Command: PASS *********
Response: 230 User wgtransfer logged in.
Status: Connected
Status: Starting upload of C:upload.zip
Command: CWD /
Response: 250 CWD command successful.
Command: PWD
Response: 257 "/" is current directory.
Command: TYPE I
Response: 200 Type set to I.
Command: PASV
Response: 227 Entering Passive Mode (000,000,000,00,22,99).
Command: STOR upload.zip
Response: 125 Data connection already open; Transfer starting.
Response: 226 Transfer complete
Status: File transfer successful, transferred 22,197 bytes in 7 seconds
Status: Retrieving directory listing...
Command: PASV
Response: 227 Entering Passive Mode (000,000,000,00,22,100).
Command: LIST
Response: 125 Data connection already open; Transfer starting.
Response: 226 Transfer complete
任何人都可以对此有所了解吗？ 我想客户端A有一些防火墙设置，防止他们上传文件，但这似乎很奇怪。
提前致谢！
它可能是防火墙从客户端A，这是防止这一点。 FTP还需要一个数据通道来发送它的信息
客户端A的权限设置为拒绝您的用户在该处写入文件的权限。
与他们联系以确保Windows中的文件权限设置为使FTP用户可以写入。
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