It looks as if the socket is being closed, and not by the server.
Therefore, either the client or a firewall. To be absolutely sure of this,
use something like Wireshark to trace the TCP packets -- find out which end
closes the socket, and whether it's a FIN or a RST.
Or you could attach a debugger to the server's Java process and step
through the login process.
> I don't think it is a firewall issue as I would expect the client to not
even be able to connect to the server. It seems to connect then
> the server closes the connection immediately.
Some firewalls do "stateful protocol analysis" of FTP. That is, they look
at the content and make decisions based on it, for example they allow
sockets to open on ports that they've seen in PORT and PASV commands. Some
of these firewalls can be configured to decline anonymous FTP, and that
would be consistent with your original report: firewall allows socket
connection; firewall sees USER command with parameter "anonymous", and
closes the socket as a result. However, if you get the same result with
admin/admin, that's less likely to be the reason.
On 21 May 2013 21:17, Travis Bowen <tbo...@us.ibm.com> wrote:
> I am trying to connect from the same computer using the filezilla client.
> I have tried the default users.properties from the 1.0.6 distribution with
> both ClearTextPasswordEncryptor and SaltedPasswordEncryptor and both
> anonymous and admin/admin show the same results.
>
> I don't think it is a firewall issue as I would expect the client to not
> even be able to connect to the server. It seems to connect then the server
> closes the connection immediately.
>
>
> Thanks,
>
> *TRAVIS BOWEN *
> Staff Software Engineer
> IBM Systems & Technology Group, Client Enablement & Systems Assurance
> [image: Inactive hide details for John Hartnup ---05/21/2013 01:02:22
> PM---This like the work of a firewall rejecting anonymous Ftp. Yo]John
> Hartnup ---05/21/2013 01:02:22 PM---This like the work of a firewall
> rejecting anonymous Ftp. You could verify this by trying to log in
>
> From: John Hartnup <john.hart...@gmail.com>
> To: ftpserver-users@mina.apache.org,
> Date: 05/21/2013 01:02 PM
> Subject: Re: No users can connect, no error.
> ------------------------------
>
>
>
> This like the work of a firewall rejecting anonymous Ftp. You could verify
> this by trying to log in from a client on the same system as the server, or
> by changing the configuration to use a username other than "anonymous".
> On 21 May 2013 20:28, "Travis Bowen" <tbo...@us.ibm.com> wrote:
>
> > First I'd like to thank you for providing this software.
> >
> > However, the documentation is somewhat lacking. I've spent several hours
> > just trying to get the embedded version to accept user logins.
> >
> > Here is the code I am using (drawn from the quickstart docs and other
> > sources):
> >
> > FtpServerFactory serverFactory = *new* FtpServerFactory();
> > ListenerFactory listenerFactory = *new* ListenerFactory();
>
> >
> > // set the port of the listener
> > listenerFactory.setPort(*props*.getFtpPortProperty());
>
> > Listener listener = listenerFactory.createListener();
> >
> > // replace the default listener
> > serverFactory.addListener("default", listener);
> >
> > Map<String, Ftplet> ftpletMap = *new* HashMap<String, Ftplet>();
> > ftpletMap.put("IBMFtplet", *new* IBMFtplet(*this*));
> >
> > serverFactory.setFtplets(ftpletMap);
> >
> > ConnectionConfigFactory connectionConfigFactory = *new*
> > ConnectionConfigFactory();
> > connectionConfigFactory.setAnonymousLoginEnabled(*true*);
> >
> >
> >
> serverFactory.setConnectionConfig(connectionConfigFactory.createConnectionConfig());
> >
> > PropertiesUserManagerFactory userManagerFactory = *new*
> > PropertiesUserManagerFactory();
> > userManagerFactory.setFile(*new* File("users.properties"));
> > userManagerFactory.setPasswordEncryptor(*new*
>
> > ClearTextPasswordEncryptor());
> > UserManager userManager = userManagerFactory.createUserManager();
> >
> > UserFactory userFactory = *new* UserFactory();
>
> > userFactory.setName("anonymous");
> > userFactory.setPassword("");
> > userFactory.setHomeDirectory("/tmp");
> >
> > List<Authority> auths = *new* ArrayList<Authority>();
> > Authority auth = *new* WritePermission();
>
> > auths.add(auth);
> > userFactory.setAuthorities(auths);
> >
> > User user = userFactory.createUser();
> >
> > userManager.save(user);
> > serverFactory.setUserManager(userManager);
> >
> > // start the server
> > FtpServer server = serverFactory.createServer();
> >
> > server.start();
> >
> > Here is the output:
> >
> > [NioProcessor-3] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CREATED
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> > [NioProcessor-4] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> -
> > CREATED
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> > [NioProcessor-5] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> -
> > CREATED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> > [NioProcessor-6] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> -
> > CREATED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> > [NioProcessor-7] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> -
> > CREATED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> > [NioProcessor-8] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> -
> > CREATED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - OPENED
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - SENT: 220 Service ready for new user.
> >
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - RECEIVED: USER anonymous
> > [pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter
> > - CLOSED
> >
> > here is the users.properties file:
> >
> > #Generated file - don't edit (please)
> > #Tue May 21 10:08:40 MST 2013
> > ftpserver.user.anonymous.writepermission=true
> > ftpserver.user.anonymous.idletime=0
> > ftpserver.user.anonymous.userpassword=
> > ftpserver.user.anonymous.enableflag=true
> > ftpserver.user.anonymous.homedirectory=/tmp
> >
> >
> > It seems to automatically close the connection for any user (I also tried
> > the default admin/admin).
> >
> > Thanks,
> >
> > *TRAVIS BOWEN *
>
> > Staff Software Engineer
> > IBM Systems & Technology Group, Client Enablement & Systems Assurance
> >
>
>
--
"There is no way to peace; peace is the way"
