Cannot FTP from Win2000 Server to SCO Server

  • Thread starter Thread starter Jay Chan
  • Start date Start date
J

Jay Chan

We have been able to FTP from a Windows-2000 server to a SCO server
for at least a year. Today, it stops working for no apparent reason.
When I use the following command in command line, it will fail:

ftp <IP-address-of-the-SCO-Server>

It says:
Connected to <IP-address-of-the-SCO-Server>
... one minute of hanging ...
Connection closed by remote host.

How can I get this to start working again?

The following information may be useful for solving this problem:

- I can use other Windows-2000 servers to FTP to that SCO server.
I just cannot FTP from that particular Windows-2000 server to that
SCO server.

- I can use that particular Windows-2000 server to FTP to other
Windows-2000 servers and a Sun Solaris Unix server. I just cannot
FTP from that Windows-2000 server to all SCO servers in our
company.

- Seem like the combination of that particular Windows-2000 and SCO
server suddenly starts failing (even though this combination has
worked for at least a year).

- Both the Windows-2000 server and the SCO server are in the same
sub-net.

- There is another SCO server that is in a different sub-net. The
Windows-2000 server cannot FTP to that SCO server either.

- According to the Services files in both
C:\WinNT\System32\Drivers\Etc\
and in /etc/services file in SCO, the data-port and control-port
for
FTP are 20 and 21 respectively. I believe these are standard
configuration.

- I thought FTP may be waiting for me to enter something when it
shows
the message "Connected <IP-address-of-the-SCO-Server>". But this
is
not the case. Whatever that I entered would be dumped back to
command
prompt.

- That Windows-2000 server doesn't have "FTP Publishing Service"
installed. I believe this is OK, right?

- That Windows-2000 server doesn't have "Internet Service Manager"
installed. I believe this is OK, right?

- I have asked many people who have access to the Windows-2000
server
and the SCO server. They all say that they haven't changed
anything
on those servers.

- I have rebooted both servers. But that doesn't help.

Thanks in advance for any information on this problem.

Jay Chan
 
The problem went away by itself after one day for no apparent reason.
It disappeared just as mysteriously as when it appeared. Microsoft
Tech Support asked me to run a tool called Network Monitoring Tool
next time when it happens again. We will see...

Jay Chan
 
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