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From David Latorre <dvl...@gmail.com>
Subject Re: FtpServer 1.0.0-M3 problem when configured for single passive port
Date Thu, 17 Jun 2010 08:53:15 GMT
Hello Peter,

Can you upgrade to latest 1.0.x version instead of M3?

We identified a bug that would block the server if multiple requests
for a passive port are done concurrently. Still, I don't think is a
good idea to use a single passive port :)





2010/6/17 Peter Kostouros <kpeter@melbpc.org.au>:
> Hi
>
> I hope someone can point me in the right direction to resolve a recent
> problem we have identified. Upgrading from an early snapshot to 1.0.0-M3 we
> noted a problem when multiple users were logged on and requesting a passive
> port (for historical reasons we have configured a single passive port). It
> looks like something odd has occurred with the passive port, either it is
> not released or no one is notified that the port has been released. Here is
> a snippet of one of our logs:
>
> [ INFO] 2010-06-17 10:32:51,523 SENT: 226 Data transfer OK.
>
> [ INFO] 2010-06-17 10:32:51,523 RECEIVED: QUIT
>
> [ INFO] 2010-06-17 10:32:51,523 SENT: 221 Goodbye.
>
> [ INFO] 2010-06-17 10:32:51,523 CLOSED
>
> [ INFO] 2010-06-17 10:32:53,429 [FTP]    172.8.3.32 000973 USER ftp
> (172.8.3.32) DISCONNECTED
>
> [ INFO] 2010-06-17 10:32:56,023 [FTP]    172.8.3.81 000971 USER ftp
> (172.8.3.81) DISCONNECTED
>
> [ INFO] 2010-06-17 10:33:22,384 CREATED
>
> [ INFO] 2010-06-17 10:33:22,399 OPENED
>
> [ INFO] 2010-06-17 10:33:22,399 SENT: 220 Service ready for new user.
>
> [ INFO] 2010-06-17 10:33:22,431 RECEIVED: USER FTP
>
> [ INFO] 2010-06-17 10:33:22,446 SENT: 331 User name okay, need password for
> edi.
>
> [ INFO] 2010-06-17 10:33:22,477 RECEIVED: PASS *****
>
> [ INFO] 2010-06-17 10:33:22,477 Login success - ftp
>
> [ INFO] 2010-06-17 10:33:22,477 [FTP]    172.8.3.5 000000 USER ftp
> (172.8.3.5) LOGGED IN
>
> [ INFO] 2010-06-17 10:33:22,477 SENT: 230 User logged in, proceed.
>
> [ INFO] 2010-06-17 10:33:22,634 RECEIVED: PASV
>
> [DEBUG] 2010-06-17 10:33:22,634 Initiating passive data connection
>
> [ INFO] 2010-06-17 10:33:32,728 CREATED
>
> [ INFO] 2010-06-17 10:33:32,728 OPENED
>
> [ INFO] 2010-06-17 10:33:32,743 SENT: 220 Service ready for new user.
>
> I was expecting some kind of exception to be thrown ("Cannot find an
> available passive port.") in the final snippet, or something else indicating
> success.
>
> Any suggestions as where to go from here?
>
> Peter
>
>
>
>

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