The authenticity of host '192.168.56.128 (192.168.56.128)' can't be established.

这似乎是一个 SSH 连接的问题，可能是由于第一次连接到这个 IP 地址的主机而出现的安全性问题。你可以通过在命令行中输入"yes"来确认连接并将该主机添加到信任列表中。如果您还没有建立过连接，您也可以尝试使用其他安全连接方法，如VPN。

相关问题

The authenticity of host '192.168.70.28 (192.168.70.28)' can't be established.

"The authenticity of host '192.168.70.28 (192.168.70.28)' can't be established"是一个SSH连接时的警告信息。这个警告信息是由于第一次连接远程主机时，系统无法确认主机的身份验证信息而产生的。SSH会根据主机的指纹验证身份，以确保连接的安全性。在你连接到远程主机时，系统会显示主机的RSA key fingerprint，你需要确认是否继续连接。如果你确定这是你要连接的主机，你可以输入"yes"来继续连接。这样，系统就会将主机的身份验证信息添加到你的known_hosts文件中，以便以后连接时自动进行验证。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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The authenticity of host '192.168.16.203 (192.168.16.203)' can't be established.

It seems like you are encountering an issue with the authenticity of a host. This warning usually occurs when connecting to a remote server using SSH for the first time. The authenticity of the host is not established because your computer does not have the host's public key stored in its known_hosts file.

To resolve this issue, you can follow these steps:

1. Verify that you are connecting to the correct host. Double-check the IP address or hostname to ensure it matches the one you intended to connect to.

2. Check with the system administrator or owner of the remote server to confirm that it is safe to proceed with the connection.

3. If you trust the remote server, you can add its public key to your known_hosts file. You can do this by running the following command in your terminal:

   ssh-keyscan -H 192.168.16.203 >> ~/.ssh/known_hosts

Replace `192.168.16.203` with the IP address or hostname of the remote server.

4. After adding the public key, try connecting to the remote server again. You should no longer see the authenticity warning.

Remember to exercise caution when connecting to unfamiliar hosts and always verify their authenticity before proceeding.