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为什么 FileZilla 从上周开始目录列表就开始超时？

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为什么 FileZilla 从上周开始目录列表就开始超时？

直到上周五，FileZilla 3.10 版一直能够列出我在 GoDaddy 上的域中的文件和目录。现在它在 LIST 命令之后超时。

我与 GoDaddy 支持人员核实，他们能够使用 FileZilla 毫无问题地通过 FTP 传输我的域名。

我尝试重新安装 FileZilla。我检查了 Windows 防火墙，发现 FileZilla 有例外，并且有传入和传出端口的规则。我在 Xfinity 路由器中为 FTP 端口创建了一条规则。

我在 LAN 上的另一台计算机上安装了 FileZilla，但出现了同样的超时情况。会话的调试日志如下：

2015-07-05 14:23:44 59416 1 Status: Disconnected from server
2015-07-05 14:23:48 59416 1 Status: Connecting to xx.xx.xxx.xxx:21...
2015-07-05 14:23:48 59416 1 Status: Connection established, waiting for welcome message...
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 220 Microsoft FTP Service
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: AUTH TLS
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 234 AUTH command ok. Expecting TLS Negotiation.
2015-07-05 14:23:48 59416 1 Status: Initializing TLS...
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::Handshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: TLS Handshake successful
2015-07-05 14:23:48 59416 1 Trace: Protocol: TLS1.0, Key exchange: RSA, Cipher: AES-128-CBC, MAC: SHA1
2015-07-05 14:23:48 59416 1 Status: Verifying certificate...
2015-07-05 14:23:48 59416 1 Status: TLS connection established.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: USER XxxXsssss
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 331 Password required for KenFowler.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PASS *************
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 230-FTP-SSL (AUTH TLS, Explicit FTPS or FTPES) security is available
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 230 User logged in.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: OPTS UTF8 ON
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 OPTS UTF8 command successful - UTF8 encoding now ON.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PBSZ 0
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 PBSZ command successful.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PROT P
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 PROT command successful.
2015-07-05 14:23:48 59416 1 Status: Connected
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: Measured latency of 64 ms
2015-07-05 14:23:48 59416 1 Status: Retrieving directory listing...
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ChangeDirSend()
2015-07-05 14:23:48 59416 1 Command: PWD
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 257 "/" is current directory.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ParseSubcommandResult(0)
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ListSubcommandResult()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: TYPE I
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 Type set to I.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: PASV
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 227 Entering Passive Mode (97,74,215,122,198,113).
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: LIST
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:49 59416 1 Response: 150 Opening BINARY mode data connection.
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:24:09 59416 1 Error: Connection timed out after 20 seconds of inactivity
2015-07-05 14:24:09 59416 1 Trace: CFtpControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CFtpControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Error: Failed to retrieve directory listing
2015-07-05 14:24:25 59416 1 Status: Disconnected from server

答案1

回复我自己的帖子，因为我找到了解决办法。

由于在连接到本地路由器/电缆调制解调器的两台计算机和两个 FTP 程序上都出现了症状，因此我将注意力集中在路由器防火墙上。我发现 Xfinity 路由器防火墙设置为“中等安全”。中等级别设置为阻止大范围端口上的对等访问。我相信 FTP 服务器正在选择这些范围内的端口进行数据传输。

由于无法编辑“中等”级别的条件，我选择使用“自定义”级别。我将其设置为允许所有端口上的点对点访问 - 这是唯一可用的选择 - 这解决了我的 FTP 客户端问题。

我很困惑为什么 FTP 直到上周才在“中等安全”级别上工作。我认为 Comcast/Xfinity 一定对调制解调器进行了更改。我知道 Xfinity 上周推出了新的证书，暂时阻止我发送邮件。

希望这对某人有帮助。

答案2

是的……我有过和你一样的经历。我下载了最新版本的 Filezilla，但无法连接到我的服务器。你需要找到设置来禁用 SSL 选项。或者我建议你使用以前的 Filezilla 版本。我使用 Filezilla 3.8，它在我的终端上运行良好。

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