[kwlug-disc] kwlug-disc Digest, Vol 31, Issue 39

Chris Bruner cbruner at quadro.net
Thu Jun 30 12:50:51 EDT 2011


Yes I tried that, and it made no difference. I also didn't think it was 
a timeout problem since, I could do an ls, and 1/2 the directory would 
come back before the pipe broke.

On 6/30/2011 12:13 PM, Marcel Gagne wrote:
> Hello Chris,
>
> This happens on a lot of routers to a lot of servers. If you haven't 
> already done so (can't see it in the threads), open up your ssh_config 
> file (in /etc/ssh) and add the following line.
>
>    ServerAliveInterval 120
>
> Or 60 or something like that. Similarly, on the server side, you can 
> edit the sshd_config file and add the following.
>
>    ClientAliveInterval 120
>
> The idea here is that the client, or server, will send a  message over 
> the SSH connection every 120 seconds (or 60 seconds or whatever) 
> thereby making sure the connection doesn't time out. For the server 
> side, you obviously need to restart sshd for the changes to take effect.
>
> Take care out there.
>
> -- 
> Marcel Gagné
> Salmar Consulting Inc. : 519-772-7742
> 55 King Street West, 7th Floor
> Kitchener, Ontario, N2G 4W1
> Note: This massagee wos nat speel or gramer-checkered.
>
> ------------------------------------------------------------------------
>
>     *From: *kwlug-disc-request at kwlug.org
>     *To: *kwlug-disc at kwlug.org
>     *Sent: *Thursday, June 30, 2011 12:00:01 PM
>     *Subject: *kwlug-disc Digest, Vol 31, Issue 39
>
>
>     Today's Topics:
>
>        1. Re: d-link router ssh problems (Chris Bruner)
>
>     ----------------------------------------------------------------------
>
>     Message: 1
>     Date: Thu, 30 Jun 2011 00:49:46 -0400
>     From: Chris Bruner <cbruner at quadro.net>
>     To: KWLUG discussion <kwlug-disc at kwlug.org>
>     Subject: Re: [kwlug-disc] d-link router ssh problems
>     Message-ID: <4E0C006A.1080006 at quadro.net>
>     Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>     On 6/28/2011 2:20 PM, Chris Frey wrote:
>     > On Tue, Jun 28, 2011 at 01:06:34PM -0400, Chris Bruner wrote:
>     >> I'm at quadro which I believes buys internet through bell.
>     >> It's not a lot of traffic in my case.
>     >> eg. ssh somesite
>     >> ls (is ok)
>     >> wait 10 minutes
>     >> ls (1/2 come to screen connection is broken)
>     >>
>     >> I'm thinking that it is dlink specific.  I'm on the second of 2
>     routers
>     >> with the same problem.  Unless traffic shaping started at the
>     same time
>     >> I changed the router, I think it's the router.
>     > I remember experiencing something similar a long time ago, with
>     an old
>     > Linux box as the router, I think.  Unfortunately, I've forgotten
>     the details.
>     >
>     > Is wireless a part of the equation anywhere?  Could there be a
>     frequency
>     > interference that didn't happen with the other router?
>     It is a wireless router, but the computer where I noticed the
>     error is a
>     direct connect. Same configuration as the linksys.
>     > If you leave something like top running in the window, does it
>     eventually
>     > die?  If it doesn't die, then it might be a timeout issue.  If
>     it does
>     > die, then it would seem more fundamental.
>     So I left top running on a server that was having problems.  No
>     problems. Then I let the directory sit for a few hours. still no
>     problems.
>
>     The problem has magically gone away...
>
>     > Can you start a long ssh transfer in one direction and see if
>     the time
>     > it takes to to die is consistent?
>     >
>     >         cat /dev/zero | ssh host "cat>  /dev/null"
>     >
>     > - Chris
>     >
>     >
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