FTP fails when opening ASCII mode
I am using Serv-U ftp server. I connect fine. User/pass authentication is no problem. But when I try to get a directory listing, all I see is this:
ftp> dir
200 PORT Command successful.
150 Opening ASCII mode data connection for /bin/ls.
and it never comes back with a directory listing. It just times out. What's up?
ftp> dir
200 PORT Command successful.
150 Opening ASCII mode data connection for /bin/ls.
and it never comes back with a directory listing. It just times out. What's up?
oops typo... backchannel = ftpserver connecting back to your ftp-client
Either turn passive mode on or off should sort it.
Also try the "bypass proxy" option if passive doesn;t work.
Also try the "bypass proxy" option if passive doesn;t work.
ASKER
My firewall has ports 21 and 1400-1500 forwarded to my ftp server. What is the back channel number?
Usually one lower than the port number.
But I really suggest fiddling with the passive toggle
But I really suggest fiddling with the passive toggle
the backchannel is going from the server to the client, so it's not so important whats open from outside to the server, but from the server to outside. Do you have any limitations there ?
ASKER
No, there aren't any limitations. It's strange. Funny thing is, it worked before, but the only thing that has changed is the router has been restarted. No server properties have changed. I have another FTP server running on the same machine just on a different port, and it works fine. They have worked together before...
ASKER CERTIFIED SOLUTION
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ASKER
It wanted another port. Greedy server program. You like my handle? I find it rather fittng. It was either that or F-Bomb Ph.D.
Some real bad Firewalls that dont know about FTP block this (Is there a firewall between the server and the client?)
Try to use passive mode, that should help.