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Re: conserver -> cyclade, ssh timeouts

Christopher Fowler cfowler@outpostsentinel.com
Mon, 10 Oct 2005 18:49:50 -0700 (PDT)

Tune the keep alives to be more often.  I think the default is 7200
seconds.  Make it 300?

I had the same issue with VPN tunnels between devices that needed to
stay connected but were quiet.  I told pppd to send an echo packet every
60 seconds.  That solved that problem.

Some firewalls/routers may be intelligent enough to see a keep alive and
not count it.  I'm not a pro on that subject so I'm not sure.

What concerns me most is why the Cyclades box does not see the failed
connection.  when this happens are you basically locked out of that port
until you do something like a reboot on the Cyclades?  If so I would
call support and ask if there is a patch that fixes this.  

On Mon, 2005-10-10 at 18:33 -0700, Phil Dibowitz wrote:
> Hash: SHA1
> Hey folks,
> So I've brought conserver to my next company - or at least I'm trying to. ;)
> I'm having a problem where the ssh connection from conserver to the
> cyclades times out, and the ssh client sees it happen, and thus
> conserver sees it happen - but the cyclade never sees this happen, and
> thus the sock_sshd for that port lives on and the cyclade can never connect.
> I know this is more of a cyclades question and less of a conserver
> question - but I figure this is probably one of the best places to ask
> if anyone's run into this.
> Presumably the connection dies because there are firewalls in between
> the two boxes that limit inactive state timeouts.
> I've tried turning on keep alives on both sides... but haven't solved
> the problem...
> Thoughts?
> - --
> Phil Dibowitz
> P: 310-360-2330 C: 213-923-5115
> Unix Admin, Ticketmaster.com
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