FTP error 530 Permission denied?

Question

I get an Error 530 Permission Denied when I try to access an FTP server on my LAN, even though user&pass are correct. I get 530 when I FTP to it from the same machine, and from another machine on the LAN. How can I solve this error? (Update added below.)

What I want:

• run an FTP server on a home computer so I can put backups on it from other machines (from same home LAN and also from outside)

What I have:

• Windows Vista on a home computer
• DSL connection and dynamic DNS service
• either one of FileZilla Server or smallftpd,
  • each configured with a user and a public directory,
  • and the service started,
  • and unblocked in the Vista firewall.

Update:
Login succeeds when connecting using local IP address, but not when using the dynamic IP.
That would indicate an issue with the router or other kind of DNS-related stuff, but if that were the case then the FTP server wouldn't even respond, would it? It does respond but doesn't accept the login credentials -- I'm stumped!

Answer 1

So you have an FTP running on a Vista machine and you have dynamic DNS setup on your router? You didn't mention if you have port 21 forwarded to the FTP machine.

Also, I have had problems in the past with not being able to connect to a Filezilla FTP, however when I logged in as a local administrator on the FTP machine, other computers could then connect to the FTP.