How did you configure the sshd server ? SFTP is not enabled by default and
it looks like it has not been enabled.
On Thu, Apr 12, 2012 at 19:25, manojkumar16 <manojkuma...@gmail.com> wrote:
>
> Hi,
> I have attached a java file ApacheSshClient.java. It makes a connection to
> sftpserver using apache ssh library. You need to put mina-core and
> sshd-core
> jar in the classpath. After running this class, I get following exception
> at
> client side:
>
> 2012-04-12 22:46:18,623 [NioProcessor-2 ] INFO UserAuthPassword
> - Received SSH_MSG_USERAUTH_SUCCESS
> Authenticated....
> 2012-04-12 22:46:18,629 [main ] INFO ChannelSubsystem
> - Send SSH_MSG_CHANNEL_OPEN on channel 0
> 2012-04-12 22:46:18,631 [NioProcessor-2 ] INFO ClientSessionImpl
> - Received SSH_MSG_CHANNEL_OPEN_CONFIRMATION on channel 0
> 2012-04-12 22:46:18,632 [NioProcessor-2 ] INFO ChannelSubsystem
> - Send SSH_MSG_CHANNEL_REQUEST subsystem...
> 2012-04-12 22:46:18,633 [InputStreamPump] INFO ChannelSubsystem
> - Send SSH_MSG_CHANNEL_EOF on channel 0
> 2012-04-12 22:46:18,636 [NioProcessor-2 ] INFO ClientSessionImpl
> - Closing session
> 2012-04-12 22:46:18,637 [NioProcessor-2 ] INFO ChannelSubsystem
> - Closing channel 0 immediately
>
>
>
> I am using apache sshd server. At the server side, I got below exceptions:
>
> 2012-04-12 22:46:18,633 [NioProcessor-16] INFO ChannelSession
> - Received channel request: subsystem
> 2012-04-12 22:46:18,639 [NioProcessor-16] INFO ChannelSession
> - Received SSH_MSG_CHANNEL_EOF on channel 0
> 2012-04-12 22:46:18,639 [NioProcessor-16] INFO ServerSession
> - Closing session
> 2012-04-12 22:46:18,639 [NioProcessor-16] INFO ChannelSession
> - Closing channel 0 immediately
> 2012-04-12 22:46:18,639 [Thread-18 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_EOF on channel 0
> 2012-04-12 22:46:18,640 [Thread-18 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_REQUEST exit-status on channel 0
> 2012-04-12 22:46:18,640 [Thread-18 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_CLOSE on channel 0
>
>
> The server throws this exception because client sends SSH_MSG_CHANNEL_EOF
> request to the server.
> My question is why client is closing the connection after successful
> authentication?
>
> When I run ApacheSshClient.java class in debug mode, I get below exceptions
> at client side:
>
> 2012-04-12 22:52:42,577 [NioProcessor-2 ] INFO UserAuthPassword
> - Received SSH_MSG_USERAUTH_SUCCESS
> Authenticated....
> 2012-04-12 22:52:48,985 [main ] INFO ChannelSubsystem
> - Send SSH_MSG_CHANNEL_OPEN on channel 0
> 2012-04-12 22:52:49,186 [NioProcessor-2 ] INFO ClientSessionImpl
> - Received SSH_MSG_CHANNEL_OPEN_CONFIRMATION on channel 0
> 2012-04-12 22:52:49,187 [NioProcessor-2 ] INFO ChannelSubsystem
> - Send SSH_MSG_CHANNEL_REQUEST subsystem...
> 2012-04-12 22:52:49,207 [NioProcessor-2 ] INFO ClientSessionImpl
> - Closing session
> 2012-04-12 22:52:49,210 [NioProcessor-2 ] INFO ChannelSubsystem
> - Closing channel 0 immediately
>
>
> At server side:
>
> 2012-04-12 22:52:49,195 [NioProcessor-17] INFO ChannelSession
> - Received channel request: subsystem
> 2012-04-12 22:52:49,210 [NioProcessor-17] INFO ServerSession
> - Closing session
> 2012-04-12 22:52:49,210 [NioProcessor-17] INFO ChannelSession
> - Closing channel 0 immediately
> 2012-04-12 22:52:49,228 [Thread-19 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_EOF on channel 0
> 2012-04-12 22:52:49,228 [Thread-19 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_REQUEST exit-status on channel 0
> 2012-04-12 22:52:49,228 [Thread-19 ] INFO ChannelSession
> - Send SSH_MSG_CHANNEL_CLOSE on channel 0
>
>
> It seems, sftpserver is properly creating subsystem, but soon after
> connection gets disconnected when sftpclient closes its connection.
>
> What is the way to execute sftp specific command like put,get,pwd,cd etc...
>
>
> gnodet wrote:
> >
> > It's really hard to tell without more informations.
> > Make sure you enabled sftp support on the sshd server side, maybe provide
> > the sshd logs at debug level in order to see what happen.
> > Last, maybe a good way would be to provide a test case that I could run
> to
> > replicate your problem.
> >
> > On Thu, Apr 12, 2012 at 15:09, manojkumar16 <manojkuma...@gmail.com>
> > wrote:
> >
> >>
> >> Hi Guillaume,
> >> There is no such thing... I will surely use the mailing lists for
> further
> >> communications.
> >> Long time back I asked for the help regarding the implementation of
> >> sftpclient using apache sshd library...
> >> My plan is to execute sftp commands in sftp subsystem mode.
> >> In my entry class, I have added chunk of code shown below:
> >>
> >> ClientChannel channel =
> >> session.createSubsystemChannel( "sftp" );
> >> InputStream in = new ByteArrayInputStream(
> >> "ls".getBytes() );
> >> channel.setIn(in);
> >> channel.setOut(System.out);
> >> channel.setErr(System.err);
> >> channel.open().await();
> >>
> >> And in ChannelSubsystem.java class, below api is provided:
> >>
> >> protected void doOpen() throws Exception {
> >> super.doOpen();
> >> log.info("Send SSH_MSG_CHANNEL_REQUEST subsystem...");
> >> Buffer buffer =
> >> session.createBuffer(SshConstants.Message.SSH_MSG_CHANNEL_REQUEST, 0);
> >> buffer.putInt(recipient);
> >> buffer.putString("subsystem");
> >> buffer.putBoolean(true);
> >> buffer.putString(subsystem);
> >> session.writePacket(buffer);
> >> }
> >>
> >>
> >> After executing the entry class I got following logs:
> >> 2012-04-12 18:25:14,106 [main ] INFO ChannelSubsystem
> >> - Send SSH_MSG_CHANNEL_OPEN on channel 0
> >> 2012-04-12 18:25:18,202 [NioProcessor-2 ] INFO ClientSessionImpl
> >> - Received SSH_MSG_CHANNEL_OPEN_CONFIRMATION on channel 0
> >> 2012-04-12 18:25:18,204 [NioProcessor-2 ] INFO ChannelSubsystem
> >> - Send SSH_MSG_CHANNEL_REQUEST subsystem...
> >> 2012-04-12 18:25:18,227 [NioProcessor-2 ] INFO ClientSessionImpl
> >> - Closing session
> >> 2012-04-12 18:25:18,230 [NioProcessor-2 ] INFO ChannelSubsystem
> >> - Closing channel 0 immediately
> >>
> >>
> >> My question here is, why is it closing the session after sending
> >> SSH_MSG_CHANNEL_REQUEST for subsystem?
> >>
> >>
> >>
> >> gnodet wrote:
> >> >
> >> > Unless there's a need for secrecy, using the mailing lists is usually
> a
> >> > good idea so that everyone can get involved.
> >> >
> >> > On Thu, Apr 12, 2012 at 14:47, manojkumar16 <manojkuma...@gmail.com>
> >> > wrote:
> >> >
> >> >>
> >> >> Actually, I do not want to use Jsch library... Since, Apache sshd has
> >> >> provided well-written ssh library for both client and server, I want
> >> to
> >> >> focus more on implementing sftp client using apache sshd library.
> >> >> Can you reach me on manojkuma...@gmail.com so that I can explain you
> >> >> exactly
> >> >> what I am doing for sftp client implementation using apache sshd
> >> library?
> >> >>
> >> >>
> >> >> David Latorre wrote:
> >> >> >
> >> >> > For SFTP-client support there are several options, in our case, we
> >> use
> >> >> > apache commons vfs with JSCH libraries. Would that work for you?
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> > 2012/1/23 Guillaume Nodet <gno...@gmail.com>:
> >> >> >> Oh, I missed you were talking about sftp. The problem is that
> >> we've
> >> >> >> mostly focused on the server side, so the client side is still
> >> lacking
> >> >> >> lots of features. And the sftp support is one of them
> >> unfortunately.
> >> >> >>
> >> >> >>
> >> >> >> On Mon, Jan 23, 2012 at 09:48, Guillaume Nodet <gno...@gmail.com>
> >> >> wrote:
> >> >> >>> You can find a real working example of using the client side in
> >> >> Apache
> >> >> >>> Karaf:
> >> >> >>>
> >> >>
> >>
> https://github.com/apache/karaf/blob/trunk/client/src/main/java/org/apache/karaf/client/Main.java
> >> >> >>>
> >> >> >>> The basic idea is to open a channel which is either a "shell"
> >> channel
> >> >> >>> for an interactive session or an "exec" channel to execute a
> >> single
> >> >> >>> command and exit without any user interaction.
> >> >> >>> The channel has an input stream and two output streams (out and
> >> err)
> >> >> >>> which you can set to redirect to the default System.out and
> >> >> System.err
> >> >> >>> or to your own in-memory stream or whatever kind of streams you
> >> want.
> >> >> >>>
> >> >> >>> On Mon, Jan 23, 2012 at 08:16, manoj kumar
> >> <manojkuma...@gmail.com>
> >> >> >>> wrote:
> >> >> >>>> Hi,
> >> >> >>>>
> >> >> >>>> I want to write sftp Client using apache-sshd mina client api. I
> >> am
> >> >> >>>> able to
> >> >> >>>> connect to sftp server using apache ssh client but I do not have
> >> any
> >> >> >>>> idea
> >> >> >>>> how to send sftp command to apache sshd server and how do I get
> >> >> result
> >> >> >>>> of
> >> >> >>>> sftp client. I am totally lost. Please guide me. I have
> confusion
> >> on
> >> >> >>>> below
> >> >> >>>> code:
> >> >> >>>>
> >> >> >>>> SshClient client = SshClient.setUpDefaultClient();
> >> >> >>>> client.start();
> >> >> >>>> ClientSession session = client.connect("localhost",
> >> >> >>>> port).await().getSession();
> >> >> >>>> session.authPassword("smx", "smx");
> >> >> >>>> ClientChannel channel =
> >> >> >>>> session.createChannel(ClientChannel.CHANNEL_SHELL);
> >> >> >>>> ByteArrayOutputStream sent = new ByteArrayOutputStream();
> >> >> >>>> PipedOutputStream pipedIn = new
> >> TeePipedOutputStream(sent);
> >> >> >>>> channel.setIn(new PipedInputStream(pipedIn));
> >> >> >>>> ByteArrayOutputStream out = new ByteArrayOutputStream();
> >> >> >>>> ByteArrayOutputStream err = new ByteArrayOutputStream();
> >> >> >>>> channel.setOut(out);
> >> >> >>>> channel.setErr(err);
> >> >> >>>> channel.open().await();
> >> >> >>>>
> >> >> >>>> --
> >> >> >>>> Thanks and Regards,
> >> >> >>>> Manoj Kumar
> >> >> >>>> 9535214528
> >> >> >>>
> >> >> >>>
> >> >> >>>
> >> >> >>> --
> >> >> >>> ------------------------
> >> >> >>> Guillaume Nodet
> >> >> >>> ------------------------
> >> >> >>> Blog: http://gnodet.blogspot.com/
> >> >> >>> ------------------------
> >> >> >>> FuseSource, Integration everywhere
> >> >> >>> http://fusesource.com
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> ------------------------
> >> >> >> Guillaume Nodet
> >> >> >> ------------------------
> >> >> >> Blog: http://gnodet.blogspot.com/
> >> >> >> ------------------------
> >> >> >> FuseSource, Integration everywhere
> >> >> >> http://fusesource.com
> >> >> >
> >> >> >
> >> >>
> >> >> --
> >> >> View this message in context:
> >> >>
> >>
> http://old.nabble.com/sshClient-in-apache-sshd-mina-tp33186423p33675023.html
> >> >> Sent from the Apache MINA User Forum mailing list archive at
> >> Nabble.com.
> >> >>
> >> >>
> >> >
> >> >
> >> > --
> >> > ------------------------
> >> > Guillaume Nodet
> >> > ------------------------
> >> > Blog: http://gnodet.blogspot.com/
> >> > ------------------------
> >> > FuseSource, Integration everywhere
> >> > http://fusesource.com
> >> >
> >> >
> >>
> >> --
> >> View this message in context:
> >>
> http://old.nabble.com/sshClient-in-apache-sshd-mina-tp33186423p33675184.html
> >> Sent from the Apache MINA User Forum mailing list archive at Nabble.com.
> >>
> >>
> >
> >
> > --
> > ------------------------
> > Guillaume Nodet
> > ------------------------
> > Blog: http://gnodet.blogspot.com/
> > ------------------------
> > FuseSource, Integration everywhere
> > http://fusesource.com
> >
> >
> http://old.nabble.com/file/p33676989/ApacheSshClient.java
> ApacheSshClient.java
> --
> View this message in context:
> http://old.nabble.com/sshClient-in-apache-sshd-mina-tp33186423p33676989.html
> Sent from the Apache MINA User Forum mailing list archive at Nabble.com.
>
>
--
------------------------
Guillaume Nodet
------------------------
Blog: http://gnodet.blogspot.com/
------------------------
FuseSource, Integration everywhere
http://fusesource.com
