The server's certificate is unknown. Please carefully examine the certificate to make sure the server can be trusted.
It is neither an error nor a problem. FileZilla just doesn't use the OS certificate store (which might become compromised), instead, it follows the TOFU model (TOFU = Trust On First Use). That means, at least upon first contact to every new server, you will get that popup, to carefully check and verify the certificate. If you trust it, click the button (+check the box for permanent trust). With permanent trust, you won't be bothered again for that exact certificate until it expires.
Just check these two checkbox.
Trust this certificate and carry on connecting? YES
Always trust certificate in the future sessions. YES
FileZilla连接FTPS服务器时出现FTP服务器证书未知警示时，只要选择信任服务器证书并且勾选永久信任该证书选项即可，FileZilla目前并不会对信任的CA颁发的证书直接放行，而是在用户连接FTPS接服务器时提示用户自行检测FTP服务器的证书是否可信，即使是受信任的CA颁发机构有效签发的证书也会出现这样的提示。
以上英文引用内容来自FileZilla论坛用户名为boco的国外网友。中文部分并非点对点翻译，而是摘录其信息。 |
