asked on

FTP error message: 421 You are not permitted to make this connection

I am unable to get much in the way of substantive answers as to what the following FTP error message might mean:

421 You are not permitted to make this connection

I am trying to connect to a remote FTP machine and as far as I know, my credentials are perfect. It seems as though the handshake itself fails before it even gets to that stage, though.

Any thoughts are most welcomed.

NY

SOLUTION

simonenticott

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

pcavenue

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

ASKER CERTIFIED SOLUTION

rburns50

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

rburns50

One more thought (in line with the Simon above)- that error can also mean that your IP address still has a session open to the FTP server, and some FTP servers only allow one concurrent session per iP address. Could someone else be using the same IP address to connect (perhaps you and others are being NAT'd to a single address while going out to the Internet)? Or maybe when you have disconnected previous sessions, you didn't logout properly, and it still thinks you have an open session?

newyorkny

ASKER

Thanks guys.

It turned out that this error in this case meant that a secure FTP client was required even to attempt a handshake.

I will split the points for the good thoughts.

Have great weekends.

rburns50

You too...glad you figured it out