Re: [squid-users] No access to www.bundessortenamt.de via Squidproxy

Just shooting to the air, but perhaps disabling TCP timestamps would help.
I had a problem with www.wdc.com some time ago related with tcp timestamps.

HTH,

On 10/13/06, Kumoro Wibowo <kwwibowo@yahoo.com> wrote:
> I have experienced the same problem also with squid-2.6.STABLE4 on FC5. However, I then ran a test on a newly installed ubuntu dapper (server) with squid-2.5, and guess what, it works. Are you also running Fedora Core?
>
> Something in FC5 is still a mystery to me (ECN is off already by default on FC5, iptables is off, selinux is off).
>
> YMMV. Good luck.
>
>
> -kum
>
>
>
> ----- Original Message ----
> From: Jens Strohschnitter <suse-linux@rwz.de>
> To: squid-users@squid-cache.org
> Sent: Friday, October 13, 2006 5:20:40 PM
> Subject: Re: [squid-users] No access to www.bundessortenamt.de via Squidproxy
>
> > > our users can't get an access to the url: http://www.bundessortenamt.de
> > > through the squid-proxy (Version 2.5.STABLE5). In the logs I can't find
> > > any error. When I try to access the site without using the squid, the
> > > page will be displayed.
> >
> > The most likely cause is broken TCP/IP firewalls, usually ECN or
> > timestamps related issues. Could also be window scaling causing
> > problems.
> >
> > But it's also possible that maybe it's caused by some long forgotten bug
> > in that very old Squid version (or maybe a missing workaround for bugs
> > in other equipment). Current supported Squid version is 2.6.STABLE4.
> >
> > For information about ECN see the FAQ.
> >
> > As others have already said, the first test is to try to reach the site
> > from the Squid proxy server but without using Squid, using any kind of
> > browser running locally on the proxy server. This will tell you if the
> > problem is TCP/IP related, or if it's a Squid problem.
>
> Hi,
>
> an upgrade to 2.6.STABLE4 has no effect. w3m cannot open via proxy.
> On my firewall there is no ECN not scaling activated.
> Hm, is there any chance to fix this problem ?
>
> --
> Regards,
>
> Jens Strohschnitter
>
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Gonzalo A. Arana