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From "Benjamin Piwowarski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (VFS-440) [SFTP] Stream (e.g. netcat) proxy for Sftp file system (aka ProxyCommand)
Date Sun, 28 Oct 2012 15:27:12 GMT

    [ https://issues.apache.org/jira/browse/VFS-440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485646#comment-13485646
] 

Benjamin Piwowarski commented on VFS-440:
-----------------------------------------

I will have a second look at it latter, but I don't think the problem comes from the new code
(well, not directly at least) but rather than resources are not freed by VFS.

It seems to be related to the thread that forward streams from the Sftp server to the client.
I could force all those threads to be killed at the end of the test but it seems to be against
testing purpose. Tell me what you think.
                
> [SFTP] Stream (e.g. netcat) proxy for Sftp file system (aka ProxyCommand)
> -------------------------------------------------------------------------
>
>                 Key: VFS-440
>                 URL: https://issues.apache.org/jira/browse/VFS-440
>             Project: Commons VFS
>          Issue Type: Improvement
>            Reporter: Benjamin Piwowarski
>            Priority: Minor
>              Labels: proxy, sftp
>         Attachments: sftp-stream-proxy.diff, sftp-stream-proxy-v2.diff, sftp-stream-proxy-v3.diff,
sftp-stream-proxy-v4.diff, sftp-stream-proxy-v5.diff, sftp-stream-proxy-v6.diff, sftp-stream-proxy-v7-bis.diff,
sftp-stream-proxy-v7.diff
>
>
> What I propose is to add the possibility to connect to a remote SSH server through an
SSH connection stream (instead of an HTTP or SOCKS proxy). See for instance
> http://backdrift.org/transparent-proxy-with-ssh
> for a use case.
> This simulates a ProxyCommand where the command is run on a SSH host.
> The patch also contains a test for the new functionality. 
> Example of use (with the netcat command nc -q 0 HOSTNAME PORT)
> {code:java}
> builder.setProxyType(opts, SftpFileSystemConfigBuilder.PROXY_STREAM);
> builder.setProxyCommand(opts, SftpStreamProxy.NETCAT_COMMAND);
> builder.setProxyHost(opts, "gate.way.host");
> builder.setProxyPort(opts, 22);
> builder.setProxyOptions(opts, proxyOptions);
> {code}

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