[Techtalk] Can't get to http://linuxchix.org

Wim De Smet kromagg at gmail.com
Thu Nov 11 09:35:37 EST 2004


Hi,
On Wed, 10 Nov 2004 10:55:31 -0800, Akkana Peck <akkana at shallowsky.com> wrote:
> Carla Schroder writes:
> > Dancer posted this on Volunteers:
> >
> > "If you are using a late-model 2.6 kernel, you will want to put:
> > net/ipv4/tcp_default_win_scale=0
> > in your /etc/sysctl.conf (or equivalent).
> >
> > 2.6 introduces a new tcp_default_win_scale that tickles many routing
> > bugs in TCP streams in assorted hardware.
> 
> Addendum to that: a few weeks ago we were having the same
> problem getting to linuxchix.org from here, and we discovered that
> we only saw the problem on machines running the 2.6.8.1 kernel.
> Machines running 2.6.7 or 2.6.9 or 2.4.* could get to
> linuxchix.org, but 2.6.8.1 couldn't.  Perhaps 2.6.9 changed the
> tcp_default_win_scale, or its handling of it, to be more tolerant?
> 

I got bitten by this too and didn't really think about it so I
couldn't get to the website. However linuxchix is so far the only
website I couldn't get to. I am halfway around the world though but
since the problem was persistent (and tcp packets don't necessarily
take the same route) I would suggest the problem might be with
linuxchix's hosting? How might we find out which router is dropping
these packets, anybody have an idea?

greets,
wim


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