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Čamo
Asked: 2021-01-14 09:57:48 +0800 CST

警告：将“111.222.33.40”（ECDSA）永久添加到已知主机列表中

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当我运行 rsync 命令将一个目录从一台服务器复制到另一台服务器时，我收到以下警告：Warning: Permanently added '111.222.33.40' (ECDSA) to the list of known hosts。该命令如下所示：

rsync -avz /root/custom-scripts  [email protected]:/root/

为什么这个命令会产生这个警告？它究竟是什么意思？

server

1 个回答

  1. Best Answer

    rsync正在使用ssh，这是一条正常的信息消息，来自ssh以前没有遇到过远程主机。来自man ssh：

     ssh automatically maintains and checks a database containing identifica‐
 tion for all hosts it has ever been used with.  Host keys are stored in
 ~/.ssh/known_hosts in the user's home directory.  Additionally, the file
 /etc/ssh/ssh_known_hosts is automatically checked for known hosts.  Any
 new hosts are automatically added to the user's file.  If a host's iden‐
 tification ever changes, ssh warns about this and disables password
 authentication to prevent server spoofing or man-in-the-middle attacks,
 which could otherwise be used to circumvent the encryption.
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