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SSH dropouts with heavy session traffic
- From: "Scott McNab" <scott dot mcnab at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Sun, 9 Sep 2007 09:42:08 +0800
- Subject: SSH dropouts with heavy session traffic
I upgraded my cygwin packages recently and have started getting
problems with ssh connections terminating unexpectedly with the
Timeout, server not responding.
This only happens when sending/receiving a burst of data at once (i.e.
typing single characters etc works fine). I can consistently reproduce
this for example by doing the following:
ls -lR /
It will dump several screens worth of directory listings and then die
unexpectly with the above error message. I can also make it fail
sending data as well - for example, by cut-and-pasting a chunk of text
into the ssh session.
I believe this problem may have something to do with the way
interactive ssh sessions are managed, because it does NOT occur when
simply executing non-interactive commands. For example, the following
command consistently works fine!:
ssh firstname.lastname@example.org ls -lR /
I have tried reinstalling the packages and have tested this with both
OpenSSH 4.5 and 4.6 packages and they exhibit the same problem. I know
it is not a network adaptor issue because an equivalent SSH session
with Putty works fine.
Does anyone have any idea what might be causing this? (I am running WinXP SP2)
BTW I don't know if it is related, but I also recently started getting
problems with ssh-add (before these dropouts started occuring):
$ eval `ssh-agent`
Agent pid 3208
Enter passphrase for /home/Scott McNab/.ssh/identity:
Error reading response length from authentication socket.
Error writing to authentication socket.
Could not add identity: /home/Scott McNab/.ssh/identity
I can live without ssh-agent however the constant terminal dropouts
are a real showstopper.
Thanks in advance for any insight you can provide!
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