![在服务器要求输入密码之前 ftp 连接已关闭](https://linux22.com/image/899337/%E5%9C%A8%E6%9C%8D%E5%8A%A1%E5%99%A8%E8%A6%81%E6%B1%82%E8%BE%93%E5%85%A5%E5%AF%86%E7%A0%81%E4%B9%8B%E5%89%8D%20ftp%20%E8%BF%9E%E6%8E%A5%E5%B7%B2%E5%85%B3%E9%97%AD.png)
当尝试从 machine1(SUSE Linux)连接到example.com
ftp 服务器时,我在输入密码提示之前收到以下消息。它从未验证过密码:
cata@machine1:~> ftp example.com
Connected to example.com.
220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
Name (example.com:cata): [email protected]
421 Service not available, remote server has closed connection.
如您所见,它甚至没有验证密码。
但是当我从 machine2 (Ubuntu Linux) 连接时,它可以工作:
catalinubuntu@machine2:~> ftp example.com
Connected to example.com.
220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 50 allowed.
Name (example.com:catalinubuntu): [email protected]
331 User [email protected] OK. Password required
Password:
如您所见,在这种情况下,会出现密码提示,我可以登录。我可以调整任何 FTP 客户端设置吗?