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vsftpd 因错误 451 中断上传

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vsftpd 因错误 451 中断上传

有时候，vsftpd 几乎每天都会导致客户端上传崩溃。客户端通常上传 4 个大文件（> 1 GB）和一堆小文件。这些文件中至少有一个（通常是一个大文件）会因错误 451（接近末尾）而中断，但我真的不知道这是什么意思，而且从我在其他问题上看到的情况来看，人们因为权限问题而收到此错误，但事实并非如此。
有没有办法进一步调试或获取任何有用的信息？

软件是 centos 7 上的 vsftpd 版本 3.0.2。
记录的内容：

Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "230 Login successful."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "CWD /mnt/QNAP/ac024/BatchUpload/"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "550 Failed to change directory."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "PASV"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "227 Entering Passive Mode (217,113,213,101,46,90)."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "LIST NOTIZIE OGGI - BL1 (REGISTRATO) - REGIA UNO_20220927055955.MP4"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "150 Here comes the directory listing."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "226 Directory send OK."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "PASV"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "227 Entering Passive Mode (217,113,213,101,45,171)."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "NLST NOTIZIE OGGI - BL1 (REGISTRATO) - REGIA UNO_20220927055955.MP4"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "150 Here comes the directory listing."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "226 Directory send OK."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "TYPE I"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "200 Switching to Binary mode."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "PASV"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "227 Entering Passive Mode (217,113,213,101,44,75)."
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "STOR NOTIZIE OGGI - BL1 (REGISTRATO) - REGIA UNO_20220927055955.MP4"
Tue Sep 27 06:42:34 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "150 Ok to send data."

Tue Sep 27 06:44:11 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "451 Failure writing to local file."
Tue Sep 27 06:44:11 2022 [pid 23872] [ac024bu] FAIL UPLOAD: Client "<ip>", "/NOTIZIE OGGI - BL1 (REGISTRATO) - REGIA UNO_20220927055955.MP4", 1199503196 bytes, 12065.67Kbyte/sec
Tue Sep 27 06:44:11 2022 [pid 23872] [ac024bu] FTP command: Client "<ip>", "QUIT"
Tue Sep 27 06:44:11 2022 [pid 23872] [ac024bu] FTP response: Client "<ip>", "221 Goodbye."

答案1

根据您的日志，客户端在目录中犯了错误：

2022 年 9 月 27 日星期二 06:42:34 [pid 23872] [ac024bu] FTP 命令：客户端“”，“CWD /mnt/QNAP/ac024/BatchUpload/” 2022 年 9 月 27 日星期二 06:42:34
[pid 23872] [ac024bu] FTP 响应：客户端“”，“550 更改目录失败“”。

因此，它会上传当前目录（通常是用户主目录）中的文件，并且很有可能会填满该目录。确保目标目录/mnt/QNAP/ac024/BatchUpload/存在，并且用户有权在该目录中写入。

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