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WinSCP 有时会抛出错误 - 尽管接受了密钥，但服务器拒绝公钥签名

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WinSCP 有时会抛出错误 - 尽管接受了密钥，但服务器拒绝公钥签名

我计划使用 WinSCP 将文件发送到 SFTP 服务器（Tumbleweed）的一个进程。

它的 99.5% 的时间都是有效的。

0.5％ 的时间，登录失败并且 WinSCP 报告：

Server refused public-key signature despite accepting key

WinSCP 日志摘录：

! 2013-04-07 12:05:18.913 Using username "XXXXXX".
. 2013-04-07 12:05:18.928 Offered public key
. 2013-04-07 12:05:19.460 Offer of public key accepted
! 2013-04-07 12:05:19.460 Authenticating with public key "XXXXXXXXX"
. 2013-04-07 12:05:19.491 Sent public key signature
! 2013-04-07 12:05:19.491 Server refused public-key signature despite accepting key!
. 2013-04-07 12:05:19.491 Server refused public-key signature despite accepting key!
. 2013-04-07 12:05:19.491 Attempting keyboard-interactive authentication

服务器未记录任何错误：

2013-04-07 12:05:19,816 DEBUG [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.SSHSession - Adding session xxxxxxx. Session count: 0
2013-04-07 12:05:19,816 DEBUG [SSHD-TRANSFER-1] com.tumbleweed.st.server.events.AgentSession - Created unique session ID: xxxxxx 
2013-04-07 12:05:19,816 DEBUG [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.PublicKeyStoreImpl - invoke cert agent
2013-04-07 12:05:20,350 DEBUG [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.PublicKeyStoreImpl - cert agent success [username=xxxxxx]
2013-04-07 12:05:20,386 DEBUG [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.PublicKeyStoreImpl - User "xxxxx" logged in with cached key.

我该如何诊断/解决这个问题？

答案1

这是 proftpd 中已知的错误：

http://bugs.proftpd.org/show_bug.cgi?id=3992

修复程序尚未发布。它仅作为最新版本的补丁提供。

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