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Wojtek_
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Joined: 28 May 2006
Posts: 397
Location: London
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 Posted: Sat Apr 19, 2008 1:55 pm Post subject: [SOLVED] tcp_window_scaling issue |
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Hi,
A few weeks ago I noticed some problems while connecting to a specific website (my employer's website to be more precise). I wasn't able to access the website, ftp, wiki and even ssh to the server. I found out that if I do:
| Code: | | eniac ~ # echo 0 > /proc/sys/net/ipv4/tcp_window_scaling |
my problem is fixed. However, I would still like to know why it happens and why do I have to change that value every time I want to connect to that server. Surprisingly, if I change the value I am able to access all other websites so I don't see why the option is there.
Thanks for any suggestions,
Wojtek
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Fujitsu-Siemens Amilo Xi-1546
Intel Centrino Duo T2600 (2,16GHz)
2x1GB DDR2 RAM
ATi Mobility Radeon X1800 256MB DDR3
2x120GB HDD
Intel High Definition Audio
Last edited by Wojtek_ on Sat Apr 19, 2008 5:39 pm; edited 1 time in total |
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Desintegr
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Joined: 25 Mar 2004
Posts: 863
Location: France - Orléans
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| Posted: Sat Apr 19, 2008 2:14 pm Post subject: |
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You server is certainly behind an old and crappy router.
Read this article : http://lwn.net/Articles/92727/
If you don't want to set this variable each time you reboot, use /etc/sysctl.conf file.
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Hoc Volo, Sic Jubeo !
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Wojtek_
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Joined: 28 May 2006
Posts: 397
Location: London
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| Posted: Sat Apr 19, 2008 4:41 pm Post subject: |
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Thanks Desintegr - what would I loose if I put 0 in sysctl.conf? Would it make my network connection slower?
Cheers,
Wojtek
_________________
Fujitsu-Siemens Amilo Xi-1546
Intel Centrino Duo T2600 (2,16GHz)
2x1GB DDR2 RAM
ATi Mobility Radeon X1800 256MB DDR3
2x120GB HDD
Intel High Definition Audio |
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Desintegr
l33t
Joined: 25 Mar 2004
Posts: 863
Location: France - Orléans
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| Posted: Sat Apr 19, 2008 4:46 pm Post subject: |
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No, your connection should work fine.
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Gentoo ~AMD64
Hoc Volo, Sic Jubeo !
Mon wiki : http://desintegr.free.fr |
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Wojtek_
Guru
Joined: 28 May 2006
Posts: 397
Location: London
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| Posted: Sat Apr 19, 2008 5:38 pm Post subject: |
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Thanks again. Problem solved.
Cheers,
Wojtek
_________________
Fujitsu-Siemens Amilo Xi-1546
Intel Centrino Duo T2600 (2,16GHz)
2x1GB DDR2 RAM
ATi Mobility Radeon X1800 256MB DDR3
2x120GB HDD
Intel High Definition Audio |
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