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dlublink
Tux's lil' helper
Tux's lil' helper


Joined: 30 Sep 2006
Posts: 146

PostPosted: Tue Nov 21, 2006 10:09 pm    Post subject: some websites don't work Reply with quote

Hello,

I am trying to login to www.ebookwise.com. It works 100% in internet explorer/firefox on Windows XP. But in Gentoo linux it doesn't work.

Can't seem to get around bell.ca either...

Most other sites work fine in gentoo.

Any ideas what the problem might be?

Thanks,

David
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dsd
Developer
Developer


Joined: 30 Mar 2003
Posts: 2162
Location: nr London

PostPosted: Wed Nov 22, 2006 3:00 am    Post subject: Reply with quote

echo 0 > /proc/sys/net/ipv4/tcp_window_scaling

does that help?

if so, you have a broken router in your path.

http://lwn.net/Articles/92727/

that article may be fairly old, but recent kernels now default to much bigger window scale factors if your system has a decent amount of RAM, so this bug becomes more obvious.
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beatryder
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Joined: 08 Apr 2005
Posts: 1138

PostPosted: Wed Nov 22, 2006 6:58 am    Post subject: Reply with quote

dsd wrote:
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling

does that help?

if so, you have a broken router in your path.

http://lwn.net/Articles/92727/

that article may be fairly old, but recent kernels now default to much bigger window scale factors if your system has a decent amount of RAM, so this bug becomes more obvious.


Dude, I stumbled across this post, and OMFG, you managed to fix my problem too!! I have been having the same kind of troubles.

Thanks!!!!1111!!!ONE:p
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bollucks
l33t
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Joined: 27 Oct 2004
Posts: 606

PostPosted: Wed Nov 22, 2006 10:49 am    Post subject: Reply with quote

This is the website's fault for not obeying a standard that is over 8 years old, and proper window scaling is mandatory for massively high speed transfers (but not really of any benefit to home users).
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dlublink
Tux's lil' helper
Tux's lil' helper


Joined: 30 Sep 2006
Posts: 146

PostPosted: Wed Nov 22, 2006 12:30 pm    Post subject: Reply with quote

[quote="bollucks"]This is the website's fault for not obeying a standard that is over 8 years old, and proper window scaling is mandatory for massively high speed transfers (but not really of any benefit to home users).[/quote]

I actually read that particular article and tried to use that to resolve me issue. It didn't make any difference, but plugging my laptop into a different network seems to make the problem go away. But the issue doesn't exist for the windows users at my work. It seems only to be the linux users at my work who are affected.

I spoke with the director of technologies and he said that it's openBSD (the router to which I am connected) doesn't like Linux's Window scaling and that he would soon fix the problem.

Thanks guys.

David
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numberxiii
n00b
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Joined: 21 Mar 2006
Posts: 12
Location: France, Lyon

PostPosted: Wed Nov 22, 2006 2:50 pm    Post subject: Reply with quote

Hi

I've encountered same troubles at my work (see Internet access trouble with 2.6.18 kernel [SOLVED])... Thanks for your post !

To correct this setting after each boot, I add this line to my /etc/sysctl.conf file :
Code:
net.ipv4.tcp_window_scaling = 0


(It seems that my "provider" uses also a BSD like for routing)
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