"alok" <alok.1eboh9@mail.webservertalk.com> wrote in message
news:alok.1eboh9@mail.webservertalk.com...
> Hi Every Body,
>
> This is my first day on this forum.
>
> Could you please help me regarding a FTP issue?
>
> The IIS FTP server is resetting the connection with WS FTP in passive
> mode .
>
> Here is the log:
> ----------------------

> CWD Ready
> 250 CWD command successful.
> PWD
> 257 "/Ready" is current directory.
> PASV
> 227 Entering Passive Mode (x,y,z,v,5,133).

> connecting data channel to x.y.z.v:1413
> data channel connected to x.y.z.v:1413

> LIST
> 125 Data connection already open; Transfer starting.
> transferred 44231 bytes in 0.300 seconds, 622.019 Kbps ( 95.252 KBps),
> transfer succeeded.

> CWD STP
> 250 CWD command successful.
> PWD
> 257 "/Ready/STP" is current directory.
> PASV
> No socket

> PORT 0,0,0,0,4,148

> connection reset; the server has reset the connection for some unknown
> reason.
> Port failed
> It appears that the connection is dead. Attempting reconnect...
>
> Could you please help me to find out the root cause of the fault?

"Alok" <alokkumargupta@gmail.com> wrote in message
news:41b5e1f3.0411080335.7700a4bb@posting.google.com...
> Hi Bernard,
>
> Thanks for your response.
>
> Here is the info :
> Nope , There is no NAT on system.
> I think 0.0.0.0:port_no is used by local applications.
>
> I wonder if the port generated by server for data connection , is
> already in use. How does the IIS ftp server handle this case?
>
> I checked the ftp server log and
> > The Service status code is : 421
> > NT Status Code : 121
>
> Do you want me to see some other information in the log? Could you
> please let me know what else I need to check?
>
> Yeah , Ports are opened and the client is able to establish the data
> connection many times on ports in range 1024 -5000.
>
> OS is NT server
>
> Thanks once again for giving your valuable time.
>
> Akg.
>
>
> "Bernard" <qbernard@hotmail.com.discuss> wrote in message
news:<u85FYaiwEHA.1264@TK2MSFTNGP12.phx.gbl>...
> > the 0.0.0.0 part most likely causing my NAT, do you have one ?
> > 4,148 should be 4 x 256 + 148 = 1024 + 148 = port 1172.
> >
> > have you check the ftp server log ?
> >
> > do you open up the passive ports default from 1024 - 5000 ?
> > what OS you running ?
> >
> >
> > --
> > Regards,
> > Bernard Cheah
> > http://www.tryiis.com/
> > http://support.microsoft.com/
> > http://www.msmvps.com/bernard/

Alun Jones [MSFT] wrote:
> "alok" <alok.1eboh9@mail.webservertalk.com> wrote in message
> news:alok.1eboh9@mail.webservertalk.com...
> > Hi Every Body,
> >
> > This is my first day on this forum.
> >
> > Could you please help me regarding a FTP issue?
> >
> > The IIS FTP server is resetting the connection with WS FTP in
passive
> > mode .
> >
> > Here is the log:
> > ----------------------
>
> Note that everything from the server begins with a three-digit
number.
> [There are some clients that have been known to put their own entries
in log
> files, preceded by a three-digit number, to make it look like it came
from
> the server, but that doesn't appear to be the case here].
>
> > CWD Ready
> > 250 CWD command successful.
> > PWD
> > 257 "/Ready" is current directory.
> > PASV
> > 227 Entering Passive Mode (x,y,z,v,5,133).
>
> The server is starting to listen for your data connection, and it is
the
> client's duty to make that connection.
>
> > connecting data channel to x.y.z.v:1413
> > data channel connected to x.y.z.v:1413
>
> The client claims to have made that connection.
>
> > LIST
> > 125 Data connection already open; Transfer starting.
> > transferred 44231 bytes in 0.300 seconds, 622.019 Kbps ( 95.252
KBps),
> > transfer succeeded.
>
> There's a response missing here - the server always sends a "226"
message
> after it completes a transfer successfully.
>
> > CWD STP
> > 250 CWD command successful.
> > PWD
> > 257 "/Ready/STP" is current directory.
> > PASV
> > No socket
>
> This is a rather terse message, to the point of being meaningless.
"No
> socket" - which socket, data or control? If I were to hazard a
guess, it
> would appear that the client has been unable to create a socket to
connect
> to the server's listening port - but then, where's the 227 message
> indicating that the server is listening? That would imply that the
control
> socket is the one that vanished.
>
> > PORT 0,0,0,0,4,148
>
> But then, if the control socket had vanished, why/how would a PORT
command
> be sent? The hint may lie in the "0,0,0,0" - this is supposed to be
the
> specific IP address of the client, rather than 0.0.0.0, which is a
> pseudo-address meaning "this computer".
>
> > connection reset; the server has reset the connection for some
unknown
> > reason.
> > Port failed
> > It appears that the connection is dead. Attempting reconnect...
> >
> > Could you please help me to find out the root cause of the fault?
>
> I would check first to make sure that you didn't miss some lines of
the log
> when you were copying and pasting this text - if this is the entirety
of the
> log, you will want to contact the makers of your FTP client to ask
them how
> to interpret it, and perhaps to request a log format that is more
suitable
> for troubleshooting this problem.
>
> As for the other posts, Bernard is right to raise the question of why
this
> address is being sent by the client - 0.0.0.0 is not something you
should
> ever see in a PORT command.
>
> Your error in the error log, 421 / 121, simply means that the control

> connection was disconnected due to a timeout. How long was it
between the
> PASV command being sent, and the disconnection?
>
> Alun.
> ~~~~