问题
I am using ispconfig, and I have created a FTP user with the respective password. But when I try to connect to that server I hm experiencing this error.
Error: Authentication failed.
Error: Critical error
Error: Could not connect to server
I tried all the solutions given Here, but to no avail.
回答1:
So I found the error,
I had used FileZilla to login into the server for uploading some file, and the connection was using the sftp:// protocol.
When I tried to conenct with the ftp account the above error was being reported, even after I updated/confirmed the user password.
Finally I realized that the protocol was wrong and after removing the sftp:// protocol prefix, it defaulted to ftp:// which the server readily accepted.
来源：https://stackoverflow.com/questions/36333583/ispconfig-3-error-authentication-failed-error-critical-error-error-could-no