Re: OpenSSH 5.1p1 hanging on transfers

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Well, for anyone who ever runs into this or similar issues again, I
figured out what the problem was: my friend's Linksys router. It seems
to be puking while processing TCP streams and it simply stops passing
the packets along. I set up an OpenVPN tunnel with my friend (runs over
UDP) and it's been running great! Kind of crappy that I have to hack it
like this, but we're going to talk to Linksys and see if we can get it
fixed.

Derek

Derek Chen-Becker wrote:
> Thanks everyone for the replies. Here are some more details and answers
> to some of the questions people have responded with
> 
> 1. It's hanging on the same file every time, but it will transfer a bit
> more each time if I let the rsync timeout and then start it over (I'm
> using rsync's partial file support). The strange thing is that the
> "delta" of data is different each time; that is, it's not like it hangs
> after sending 2MB each time. Sometimes it send 8MB before hanging,
> sometimes it hangs after 1MB. The really strange thing is that if I
> compare the file size the rsync reports sending vs what the file system
> on the remote side reports they don't match up. Some of that may be
> unflushed buffers...
> 
> 2. There are other files that are the same size or slightly larger that
> transfer fine
> 
> 3. I've tested the integrity of the file. These are Dar (backup utility)
> archives and when I run the archive integrity check this file is passing.
> 
> 4. The remote side has large file support enabled. In any case, the
> transfer starts hanging around the 200MB mark
> 
> One of the interesting things to me is that I see the same behavior when
> I use SCP and rsync; as far as I can gather, the only thing these two
> have in common is that they use an SSH channel for data transfer. Mark's
> comment about an older version of OpenSSL and OpenSSH is interesting. If
> I have time I'll try to build older versions to see if that makes it
> work. Is there any way to get SSH to log packets or do some other low
> level debug logging?
> 
> Thanks,
> 
> Derek
> 
> 


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